03-Layer 2-LAN Switching Command Reference

HomeSupportResource CenterH3C S6850 & S9850 Switch Series Command References-Release 655x-6W10103-Layer 2-LAN Switching Command Reference
04-Ethernet link aggregation commands
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Contents

Ethernet link aggregation commands· 1

bandwidth· 1

default 1

description· 2

display interface· 2

display lacp system-id· 6

display link-aggregation load-sharing mode· 7

display link-aggregation load-sharing path· 9

display link-aggregation member-port 11

display link-aggregation summary· 14

display link-aggregation verbose· 15

interface bridge-aggregation· 18

interface route-aggregation· 19

jumboframe enable· 20

lacp default-selected-port disable· 20

lacp edge-port 21

lacp mode· 21

lacp period short 22

lacp select speed· 23

lacp system-mac· 23

lacp system-number 24

lacp system-priority· 25

link-aggregation auto-aggregation enable· 25

link-aggregation bfd ipv4· 26

link-aggregation global load-sharing algorithm·· 27

link-aggregation global load-sharing mode· 28

link-aggregation global load-sharing offset 30

link-aggregation global load-sharing seed· 30

link-aggregation global load-sharing tunnel 31

link-aggregation ignore vlan· 32

link-aggregation lacp traffic-redirect-notification enable· 33

link-aggregation load-sharing ignore· 34

link-aggregation load-sharing mode· 35

link-aggregation load-sharing mode local-first 36

link-aggregation management-port 37

link-aggregation management-subnet 37

link-aggregation management-vlan· 38

link-aggregation mode· 39

link-aggregation port-priority· 39

link-aggregation selected-port maximum·· 40

link-aggregation selected-port minimum·· 41

link-delay· 42

mac-address· 43

mtu· 44

port bridge enable· 44

port link-aggregation group· 45

port s-mlag group· 46

reset counters interface· 47

reset lacp statistics· 48

shutdown· 48


Ethernet link aggregation commands

bandwidth

Use bandwidth to set the expected bandwidth for an interface.

Use undo bandwidth to restore the default.

Syntax

bandwidth bandwidth-value

undo bandwidth

Default

The expected bandwidth (in kbps) is the interface baud rate divided by 1000.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Layer 3 aggregate subinterface view

Predefined user roles

network-admin

Parameters

bandwidth-value: Specifies the expected bandwidth in the range of 1 to 400000000 kbps.

Usage guidelines

The expected bandwidth is an informational parameter used only by higher-layer protocols for calculation. You cannot adjust the actual bandwidth of an interface by using this command.

Examples

# Set the expected bandwidth to 10000 kbps for Layer 2 aggregate interface Bridge-Aggregation 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] bandwidth 10000

default

Use default to restore the default settings for an aggregate interface.

Syntax

default

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Layer 3 aggregate subinterface view

Predefined user roles

network-admin

Usage guidelines

CAUTION

CAUTION:

The default command might interrupt ongoing network services. Make sure you are fully aware of the impacts of this command when you execute it on a live network.

 

This command might fail to restore the default settings for some commands for reasons such as command dependencies and system restrictions. Use the display this command in interface view to identify these commands, and then use their undo forms or follow the command reference to restore their default settings. If your restoration attempt still fails, follow the error message instructions to resolve the problem.

Examples

# Restore the default settings for Layer 2 aggregate interface 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] default

description

Use description to configure the description of an interface.

Use undo description to restore the default.

Syntax

description text

undo description

Default

The description of an interface is interface-name Interface. For example, the default description of Bridge-Aggregation 1 is Bridge-Aggregation1 Interface.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Layer 3 aggregate subinterface view

Predefined user roles

network-admin

Parameters

text: Specifies a description, a case-sensitive string of 1 to 255 characters.

Examples

# Configure the description as connect to the lab for Layer 2 aggregate interface Bridge-Aggregation 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] description connect to the lab

display interface

Use display interface to display aggregate interface information.

Syntax

display interface [ { bridge-aggregation | route-aggregation } [ interface-number ] ] [ brief [ description | down ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

bridge-aggregation: Specifies Layer 2 aggregate interfaces.

route-aggregation: Specifies Layer 3 aggregate interfaces.

interface-number: Specifies an existing aggregate interface number.

brief: Displays brief interface information. If you do not specify this keyword, the command displays detailed interface information.

description: Displays complete interface descriptions. If you do not specify this keyword, the command displays only the first 27 characters of each interface description.

down: Displays information about interfaces in down state and the causes for the down state. If you do not specify this keyword, the command displays information about interfaces in all states.

Usage guidelines

If you do not specify an aggregate interface type, the command displays information about all interfaces.

If you specify an aggregate interface type but do not specify an interface number, the command displays information about all aggregate interfaces of the specified type.

Examples

# Display detailed information about Layer 2 aggregate interface Bridge-Aggregation 1.

<Sysname> display interface bridge-aggregation 1

Bridge-Aggregation1

Current state: UP

Line protocol state: UP

IP packet frame type: Ethernet II, hardware address: 000f-e207-f2e0

Description: Bridge-Aggregation1 Interface

Bandwidth: 1000 kbps

2Gbps-speed mode, full-duplex mode

Link speed type is autonegotiation, link duplex type is autonegotiation

PVID: 1

Port link-type: Access

 Tagged VLANs:   None

 UnTagged VLANs: 1

Last clearing of counters: Never

Last 300 seconds input:  6900 packets/sec 885160 bytes/sec    0%

Last 300 seconds output:  3150 packets/sec 404430 bytes/sec    0%

Input (total):  5364747 packets, 686688416 bytes

         2682273 unicasts, 1341137 broadcasts, 1341337 multicasts, 0 pauses

Input (normal):  5364747 packets, 686688416 bytes

         2682273 unicasts, 1341137 broadcasts, 1341337 multicasts, 0 pauses

Input:  0 input errors, 0 runts, 0 giants, 0 throttles

         0 CRC, 0 frame, 0 overruns, - aborts

         - ignored, - parity errors

Output (total): 1042508 packets, 133441832 bytes

         1042306 unicasts, 0 broadcasts, 202 multicasts, - pauses

Output (normal): 1042508 packets, 133441832 bytes

         1042306 unicasts, 0 broadcasts, 202 multicasts, 0 pauses

Output: 0 output errors, - underruns, - buffer failures

         0 aborts, 0 deferred, 0 collisions, 0 late collisions

         - lost carrier, - no carrier

# Display detailed information about Layer 3 aggregate interface Route-Aggregation 1.

<Sysname> display interface route-aggregation 1

Route-Aggregation1

Current state: UP

Line protocol state: UP

Description: Route-Aggregation1 Interface

Bandwidth: 1000 kbps

Maximum transmission unit: 1500

Internet protocol processing: Disabled

IP packet frame type: Ethernet II, hardware address: 0000-0000-0000

IPv6 packet frame type: Ethernet II, hardware address: 0000-0000-0000

Link speed type is autonegotiation, link duplex type is autonegotiation

Last clearing of counters: Never

Last 300 seconds input rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec

Last 300 seconds output rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec

0 packets input, 0 bytes, 0 drops

0 packets output, 0 bytes, 0 drops

# Display brief information about Layer 2 aggregate interface Bridge-Aggregation 1.

<Sysname> display interface bridge-aggregation 1 brief

Brief information on interfaces in bridge mode:

Link: ADM - administratively down; Stby - standby

Speed: (a) – auto

Duplex: (a)/A - auto; H - half; F - full

Type: A - access; T - trunk; H - hybrid

Interface            Link Speed   Duplex Type PVID Description

BAGG1                DOWN auto    A      A    1

# Display brief information about Layer 3 aggregate interface Route-Aggregation 1.

<Sysname> display interface route-aggregation 1 brief

Brief information on interfaces in route mode:

Link: ADM - administratively down; Stby - standby

Protocol: (s) - spoofing

Interface            Link Protocol Primary IP         Description

RAGG1                UP   UP       --

Table 1 Command output

Field

Description

Bridge-Aggregation1

Layer 2 aggregate interface name.

Route-Aggregation1

Layer 3 aggregate interface name.

Current state

Physical link state of the interface:

·     Administratively DOWN—The interface has been shut down by using the shutdown command.

·     DOWN—The interface is administratively up, but its physical state is down (possibly because no physical link exists or the link has failed).

·     UP—The interface is both administratively and physically up.

IP packet frame type

IPv4 packet framing format.

IPv6 packet frame type

IPv6 packet framing format.

Description

Description of the interface.

Bandwidth

Expected bandwidth of the interface. This field is not displayed when the bandwidth is 0 kbps.

Port priority

Port priority of the interface.

Unknown-speed mode, unknown-duplex mode

The interface speed and duplex mode are unknown.

Port link-type

Port link type:

·     Access.

·     Trunk.

·     Hybrid.

Tagged VLANs

VLAN whose packets are sent out of this interface with a tag.

Untagged VLANs

VLAN whose packets are sent out of this interface without a tag.

Last clearing of counters

Time when the reset counters interface command was last used to clear the interface statistics. This field displays Never if the reset counters interface command has never been used on the interface since device startup.

Last 300 seconds input/output rate

Average input or output rate over the last 300 seconds.

Input/Output (total)

Statistics of all packets received or sent on the interface.

Input/Output (normal)

Statistics of all normal packets received or sent on the interface.

Line protocol state

Data link layer state of the interface:

·     UP.

·     DOWN.

Maximum transmission unit

MTU of the interface.

Internet protocol processing: Disabled

The interface is not assigned an IP address and cannot process IP packets.

Internet address

IP address of the interface. The primary attribute indicates that the address is the primary IP address.

Brief information on interfaces in route mode

Brief information about Layer 3 interfaces.

Brief information on interfaces in bridge mode

Brief information about Layer 2 interfaces.

Interface

Abbreviated interface name.

Link

Physical link state of the interface:

·     UP—The interface is physically up.

·     DOWN—The interface is physically down.

·     ADM—The interface has been shut down by using the shutdown command. To restore the physical state of the interface, use the undo shutdown command.

Speed

Speed of the interface, in bps.

This field displays the (a) flag next to the speed if the speed is automatically negotiated.

This field displays auto if the interface is configured to autonegotiate its speed but the autonegotiation has not started.

Duplex

Duplex mode of the interface:

·     A—Autonegotiation. The interface is configured to autonegotiate its duplex mode but the autonegotiation has not started.

·     F—Full duplex.

·     F(a)—Autonegotiated full duplex.

·     H—Half duplex.

·     H(a)—Autonegotiated half duplex.

Type

Link type of the interface:

·     A—Access.

·     H—Hybrid.

·     T—Trunk.

Protocol

Data link layer protocol state of the interface:

·     UP—The data link layer protocol of the interface is up.

·     DOWN—The data link layer protocol of the interface is down.

·     UP(s)—The data link layer protocol of the interface is up, but the link is an on-demand link or does not exist. The (s) attribute represents the spoofing flag. This value is typical of null interfaces and loopback interfaces.

Primary IP

Primary IP address of the interface. This field displays two hyphens (--) if the interface does not have an IP address.

Cause

Cause for the physical link state of an interface to be DOWN.

 

display lacp system-id

Use display lacp system-id to display the local system ID.

Syntax

display lacp system-id

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

You can use the lacp system-priority command to change the LACP priority of the local system. The LACP priority value is specified in decimal format in the lacp system-priority command. However, it is displayed in hexadecimal format in the output from the display lacp system-id command.

Examples

# Display the local system ID.

<Sysname> display lacp system-id

Actor System ID: 0x8000, 0000-fc00-6504

Table 2 Command output

Field

Description

Actor System ID: 0x8000, 0000-fc00-6504

Local system ID, which contains the LACP system priority (0x8000 in this sample output) and the LACP system MAC address (0000-FC00-6504 in this sample output).

 

Related commands

lacp system-priority

display link-aggregation load-sharing mode

Use display link-aggregation load-sharing mode to display global or group-specific link-aggregation load sharing modes.

Syntax

display link-aggregation load-sharing mode [ interface [ { bridge-aggregation | route-aggregation } interface-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

bridge-aggregation: Specifies Layer 2 aggregate interfaces.

route-aggregation: Specifies Layer 3 aggregate interfaces.

interface-number: Specifies an existing aggregate interface number.

Usage guidelines

If you do not specify the interface keyword, the command displays the global link-aggregation load sharing modes.

If you specify the interface keyword, but do not specify an interface, the command displays all group-specific load sharing modes.

The bridge-aggregation or route-aggregation keyword is available only when aggregate interfaces of the corresponding type exist on the device.

Examples

# Display the global link-aggregation load sharing mode. This example displays the default setting.

<Sysname> display link-aggregation load-sharing mode

Link-aggregation load-sharing algorithm:

0 (default)

Link-aggregation load-sharing offset:

0 (default)

Link-aggregation load-sharing seed:

0x0 (default)

Tunneled traffic load-sharing mode:

Inner (default)

Link-aggregation load-sharing mode:

  Layer 2 traffic: packet type-based sharing

  Layer 3 traffic: packet type-based sharing

# Display the global link-aggregation load sharing mode. This example displays a user-configured setting.

<Sysname> display link-aggregation load-sharing mode

Link-aggregation load-sharing algorithm:

2

Link-aggregation load-sharing offset:

3

Link-aggregation load-sharing seed:

0x3ff

Tunneled traffic load-sharing mode:

Inner

Link-aggregation load-sharing mode:

  destination-mac address, source-mac address

# Display the link-aggregation load sharing mode of Layer 2 aggregation group 10. This example displays the default setting.

<Sysname> display link-aggregation load-sharing mode interface bridge-aggregation 10

Bridge-Aggregation10 load-sharing mode:

  Layer 2 traffic: packet type-based sharing

  Layer 3 traffic: packet type-based sharing

# Display the link-aggregation load sharing mode of Layer 2 aggregation group 10. This example displays a user-configured setting.

<Sysname> display link-aggregation load-sharing mode interface bridge-aggregation 10

Bridge-Aggregation10 load-sharing mode:

destination-mac address, source-mac address

Table 3 Command output

Field

Description

Link-aggregation load-sharing algorithm

Link aggregation load sharing algorithm.

By default, this field displays the default setting. If you have configured the load sharing algorithm, this field displays the configured algorithm.

Link-aggregation load-sharing offset

Hash offset to adjust the load sharing hash results on link aggregations.

By default, this field displays the default setting. If you have configured a hash offset, this field displays the configured offset value.

Link-aggregation load-sharing seed

Link aggregation load sharing hash seed.

By default, this field displays the default setting. If you have configured the load sharing hash seed, this field displays the configured seed.

Tunneled traffic load-sharing mode

Load sharing mode for tunneled traffic on aggregate links.

By default, this field displays the default setting. If you have configured a load sharing mode for tunneled traffic, this field displays the configured mode.

Link-aggregation load-sharing mode

Global link-aggregation load sharing mode.

By default, this field displays the link-aggregation load sharing modes for Layer 2 and Layer 3 traffic.

If you have configured the global link-aggregation load sharing mode, this field displays the configured mode.

Bridge-Aggregation10 load-sharing mode

Link-aggregation load sharing mode of Layer 2 aggregation group 10.

By default, this field displays the global link-aggregation load sharing modes.

If you have configured a link-aggregation load sharing mode for this aggregation group, this field displays the configured mode.

Route-Aggregation10 load-sharing mode

Link-aggregation load sharing mode of Layer 3 aggregation group 10.

By default, this field displays the global link-aggregation load sharing modes.

If you have configured a link-aggregation load sharing mode for this aggregation group, this field displays the configured mode.

Layer 2 traffic: packet type-based sharing

Default link-aggregation load sharing mode for Layer 2 traffic. By default, Layer 2 traffic is load shared based on source and destination MAC addresses.

Layer 3 traffic: packet type-based sharing

Default link-aggregation load sharing mode for Layer 3 traffic. By default, Layer 3 traffic is load shared based on source and destination IP addresses.

destination-mac address, source-mac address

User-configured link-aggregation load sharing mode. In this sample output, traffic is load shared based on source and destination MAC addresses.

 

display link-aggregation load-sharing path

Use display link-aggregation load-sharing path to display the outgoing physical interface selected for a traffic flow.

Syntax

display link-aggregation load-sharing path interface { bridge-aggregation | route-aggregation } interface-number ingress-port interface-type interface-number [ route ] { { destination-ip ip-address | destination-ipv6 ipv6-address } | { source-ip ip-address | source-ipv6 ipv6-address } | destination-mac mac-address | destination-port port-id | ethernet-type type-number | ip-protocol protocol-id | source-mac mac-address | source-port port-id | vlan vlan-id } *

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

bridge-aggregation: Specifies Layer 2 aggregate interfaces.

route-aggregation: Specifies Layer 3 aggregate interfaces.

interface-number: Specifies an existing aggregate interface by its number.

ingress-port interface-type interface-number: Specifies an ingress port by its type and number. The ingress port must be a physical port.

route: Displays forwarding information about Layer 3 traffic. If you do not specify this keyword, the command displays forwarding information about Layer 2 traffic.

Traffic pattern parameters:

·     destination-ip ip-address: Specifies a destination IPv4 address.

·     destination-ipv6 ipv6-address: Specifies a destination IPv6 address.

·     source-ip ip-address: Specifies a source IPv4 address.

·     source-ipv6 ipv6-address: Specifies a source IPv6 address.

·     destination-mac mac-address: Specifies a destination MAC address in H-H-H format.

·     destination-port port-id: Specifies a destination port number in the range of 1 to 65535.

·     ethernet-type type-number: Specifies an Ethernet type code in the range of 1 to 65535.

·     ip-protocol protocol-id: Specifies an IP protocol by its ID in the range of 0 to 255.

·     source-mac mac-address: Specifies a source MAC address in H-H-H format.

·     source-port port-id: Specifies a source port number in the range of 1 to 65535.

·     vlan vlan-id: Specifies a VLAN by its ID in the range of 1 to 4094.

Usage guidelines

IMPORTANT

IMPORTANT:

For correctness of the command output, make sure the values of the specified parameters match the fields of the target traffic flow.

 

To obtain correct outgoing physical interface information, you must specify the same traffic pattern parameters as in the load sharing mode displayed by using the display link-aggregation load-sharing mode command.

If a parameter required for selecting the egress port is not specified, the default value of the parameter is used. If the parameter does not have any default values, the parameter is set to 0.

Examples

# Display the outgoing physical interface for the specified traffic flow to be sent out of Layer 2 aggregate interface Bridge-Aggregation 1.

<Sysname> display link-aggregation load-sharing path interface bridge-aggregation 1 ingress-port twenty-fivegige 1/0/1 destination-mac 0000-fc00-0001 source-mac 0000-fc00-0002 vlan 20 ethernet-type 0800 source-ip 10.100.0.2 destination-ip 10.100.0.1 ip-protocol 253

Load sharing mode: packet type-based sharing

Unspecified parameters are set to 0.

Load-sharing parameters:

  Ethernet type: 0x0800

  Ingress port: Twenty-FiveGigE1/0/1

  Destination MAC: 0000-fc00-0001

  Source MAC: 0000-fc00-0002

  Destination IP: 10.100.0.1

  Source IP: 10.100.0.2

  IP protocol: 253

  VLAN: 20

Egress port: Twenty-FiveGigE1/0/3

Table 4 Command output

Field

Description

Load sharing mode:

Load sharing mode set for the aggregation group:

·     destination-mac—Traffic is load shared based on destination MAC addresses.

·     source-mac—Traffic is load shared based on source MAC addresses.

·     destination-ip—Traffic is load shared based on destination IP addresses.

·     source-ip—Traffic is load shared based on source IP addresses.

·     destination-port—Traffic is load shared based on destination ports.

·     source-port—Traffic is load shared based on source ports.

·     mpls-label1—Traffic is load shared based on Layer 1 MPLS labels.

·     mpls-label2—Traffic is load shared based on Layer 2 MPLS labels.

·     ingress-port—Traffic is load shared based on ingress ports.

·     packet type-based sharing—Traffic is load shared automatically based on packet types. If no load sharing mode is set, this field also displays packet type-based sharing.

Load sharing parameters

Parameters that the system used in outgoing physical interface selection.

Egress port

Outgoing physical interface for the specified traffic flow. If no outgoing physical interface is found, this field displays N/A.

 

Related commands

display link-aggregation load-sharing mode

display link-aggregation member-port

Use display link-aggregation member-port to display detailed link aggregation information about the specified member ports.

Syntax

display link-aggregation member-port [ interface-list | auto ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface-list: Specifies a list of link aggregation member ports, in the format interface-type interface-number1 [ to interface-type interface-number2 ]. The value for the interface-number2 argument must be equal to or greater than the value for the interface-number1 argument.

auto: Specifies all link aggregation member ports that are enabled with automatic assignment.

Usage guidelines

A member port in a static aggregation group cannot obtain information about the peer group. For such member ports, the command displays the port number, port priority, and operational key of only the local end.

Examples

# Display detailed information about Twenty-FiveGigE 1/0/1, which is a member port of a static aggregation group.

<Sysname> display link-aggregation member-port twenty-fivegige 1/0/1

Flags: A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

       D -- Synchronization, E -- Collecting, F -- Distributing,

       G -- Defaulted, H -- Expired

 

Twenty-FiveGigE1/0/1:

Aggregate Interface: Bridge-Aggregation1

Port Number: 1

Port Priority: 32768

Oper-Key: 1

# Display detailed information about Twenty-FiveGigE 1/0/2, which is a member port of a dynamic aggregation group.

<Sysname> display link-aggregation member-port twenty-fivegige 1/0/2

Flags: A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

       D -- Synchronization, E -- Collecting, F -- Distributing,

       G -- Defaulted, H -- Expired

 

Twenty-FiveGigE1/0/2:

Aggregate Interface: Bridge-Aggregation10

Local:

    Port Number: 2

    Port Priority: 32768

    Oper-Key: 2

    Flag: {ACDEF}

Remote:

    System ID: 0x8000, 000f-e267-6c6a

    Port Number: 26

    Port Priority: 32768

    Oper-Key: 2

    Flag: {ACDEF}

Received LACP Packets: 5 packet(s)

Illegal: 0 packet(s)

Sent LACP Packets: 7 packet(s)

# Display detailed information about all link aggregation member ports that are enabled with automatic assignment.

<Sysname> display link-aggregation member-port auto

Flags: A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

       D -- Synchronization, E -- Collecting, F -- Distributing,

       G -- Defaulted, H -- Expired

 

Twenty-FiveGigE1/0/3:

Preference Aggregation Interface: Bridge-Aggregation11

Aggregate Interface: Bridge-Aggregation11

Local:

    Port Number: 3

    Port Priority: 32768

    Oper-Key: 1

    Flag: {ACDEF}

Remote:

    System ID: 0x8000, a057-75a2-0100

    Port Number: 3

    Port Priority: 32768

    Oper-Key: 1

    Flag: {ACDEF}

Received LACP Packets: 3 packet(s)

Illegal: 0 packet(s)

Sent LACP Packets: 6 packet(s)

Table 5 Command output

Field

Description

Flags

LACP state flags. This field is one byte long, represented by ABCDEFGH from the least significant bit to the most significant bit. A letter appears when its bit is 1 and does not appear when its bit is 0.

·     A—Indicates whether LACP is active on the port. 1 indicates active. 0 indicates passive.

·     B—Indicates the LACP timeout interval. 1 indicates the short timeout interval. 0 indicates the long timeout interval.

·     C—Indicates whether the sending system considers that the link is aggregatable. 1 indicates yes. 0 indicates no.

·     D—Indicates whether the sending system considers that the link has been aggregated. 1 indicates yes. 0 indicates no.

·     E—Indicates whether the sending system considers that the link can collect frames. 1 indicates yes. 0 indicates no.

·     F—Indicates whether the sending system considers that the link can distribute frames. 1 indicates yes. 0 indicates no.

·     G—Indicates whether the RX state machine of the sending system is in default state. 1 indicates yes. 0 indicates no.

·     H—Indicates whether the RX state machine of the sending system is in expired state. 1 indicates yes. 0 indicates no.

Aggregate Interface

Aggregate interface to which the member port belongs.

Preferred Aggregate Interface

Aggregate interface to which you prefer to assign the member port during automatic assignment.

Local

Information about the local end.

Oper-key

Operational key.

Flag

LACP protocol state flag.

Remote

Information about the peer end.

System ID

Peer system ID, containing the LACP system priority and the LACP system MAC address.

Received LACP Packets

Total number of LACP packets received.

Illegal

Total number of illegal packets.

Sent LACP Packets

Total number of LACP packets sent.

 

display link-aggregation summary

Use display link-aggregation summary to display brief information about all aggregation groups.

Syntax

display link-aggregation summary

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

Static link aggregation groups cannot obtain information about the peer groups. As a result, the Partner ID field displays None for a static link aggregation group.

Examples

# Display brief information about all aggregation groups.

<Sysname> display link-aggregation summary

Aggregate Interface Type:

BAGG -- Bridge-Aggregation, BLAGG –- Blade-Aggregation, RAGG -- Route-Aggregation, SCH-B – Schannel-Bundle

Aggregation Mode: S -- Static, D -- Dynamic

Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

Actor System ID: 0x8000, 000f-e267-6c6a

 

AGG        AGG   Partner ID              Selected  Unselected  Individual  Share

Interface  Mode                          Ports     Ports       Ports       Type

--------------------------------------------------------------------------------

RAGG10     S     None                    1         0           0           NonS

BAGG20     D     0x8000,00e0-fcff-ff01   2         0           0           Shar

Table 6 Command output

Field

Description

Aggregate Interface Type

Aggregate interface type:

·     BAGG—Layer 2.

·     RAGG—Layer 3.

Aggregation Mode

Aggregation group type:

·     S—Static.

·     D—Dynamic.

Loadsharing Type

Load sharing type:

·     Shar—Load-sharing.

·     NonS—Non-load-sharing.

Actor System ID

Local system ID, which contains the local LACP system priority and the local LACP system MAC address.

AGG Interface

Type and number of the aggregate interface.

AGG Mode

Aggregation group type.

Partner ID

System ID of the peer system, which contains the peer LACP system priority and the peer LACP system MAC address.

Selected Ports

Total number of Selected ports.

Unselected Ports

Total number of Unselected ports.

Individual Ports

Total number of Individual ports.

Share Type

Load sharing type.

 

display link-aggregation verbose

Use display link-aggregation verbose to display detailed information about the aggregation groups that correspond to the specified aggregate interfaces.

Syntax

display link-aggregation verbose [ { bridge-aggregation | route-aggregation } [ interface-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

bridge-aggregation: Specifies Layer 2 aggregate interfaces.

route-aggregation: Specifies Layer 3 aggregate interfaces.

interface-number: Specifies an existing aggregate interface by its number.

Usage guidelines

If you do not specify an aggregate interface type, the command displays detailed information about all aggregation groups.

If you specify an aggregate interface type but do not specify an interface number, the command displays detailed information about all aggregation groups of the specified type.

The bridge-aggregation or route-aggregation keyword is available only when aggregate interfaces of the corresponding type exist on the device.

This command does not display the interfaces that are enabled with automatic assignment if they have not joined an aggregation group.

Examples

# Display detailed information about Layer 2 aggregation group 10, which is a dynamic aggregation group.

<Sysname> display link-aggregation verbose bridge-aggregation 10

Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

Port Status: S -- Selected, U -- Unselected, I -- Individual

Port: A -- Auto port, M -- Management port, R -- Reference port

Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

        D -- Synchronization, E -- Collecting, F -- Distributing,

        G -- Defaulted, H -- Expired

 

Aggregate Interface: Bridge-Aggregation10

Creation Mode: Manual

Aggregation Mode: Dynamic

Loadsharing Type: Shar

Management VLANs: None

System ID: 0x8000, 000f-e267-6c6a

Local:

  Port                Status   Priority Index    Oper-Key               Flag

  WGE1/0/1            S        32768    61       2                      {ACDEF}

  WGE1/0/2            S        32768    62       2                      {ACDEF}

  WGE1/0/3            S        32768    63       2                      {ACDEF}

Remote:

  Actor               Priority Index    Oper-Key SystemID               Flag

  WGE1/0/1(R)         32768    111      2        0x8000, 000f-e267-57ad {ACDEF}

  WGE1/0/2            32768    112      2        0x8000, 000f-e267-57ad {ACDEF}

  WGE1/0/3            32768    113      2        0x8000, 000f-e267-57ad {ACDEF}

# Display detailed information about Layer 2 aggregation group 20, which is a static aggregation group.

<Sysname> display link-aggregation verbose bridge-aggregation 20

Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

Port Status: S -- Selected, U -- Unselected, I -- Individual

Port: A -- Auto port, M -- Management port, R -- Reference port

Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

        D -- Synchronization, E -- Collecting, F -- Distributing,

        G -- Defaulted, H -- Expired

 

Aggregate Interface: Bridge-Aggregation20

Aggregation Mode: Static

Loadsharing Type: Shar

Management VLANs: None

  Port             Status  Priority Oper-Key

  WGE1/0/1(R)      S       32768    1

  WGE1/0/2         S       32768    1

  WGE1/0/3         S       32768    1

Table 7 Command output

Field

Description

Loadsharing Type

Load sharing type:

·     Shar—Load-sharing.

·     NonS—Non-load-sharing.

Port Status

Port state:

·     Selected.

·     Unselected.

·     Individual.

Port

Port type:

·     Auto port—The port is enabled with automatic assignment.

·     Management port—The port is a management port.

·     Reference port—The port is a reference port.

Flags

LACP state flags. This field is one byte long, represented by ABCDEFGH from the least significant bit to the most significant bit. A letter appears when its bit is 1 and does not appear when its bit is 0.

·     A—Indicates whether LACP is active on the port. 1 indicates active. 0 indicates passive.

·     B—Indicates the LACP timeout interval. 1 indicates the short timeout interval. 0 indicates the long timeout interval.

·     C—Indicates whether the sending system considers that the link is aggregatable. 1 indicates yes. 0 indicates no.

·     D—Indicates whether the sending system considers that the link has been aggregated. 1 indicates yes. 0 indicates no.

·     E—Indicates whether the sending system considers that the link can collect frames. 1 indicates yes. 0 indicates no.

·     F—Indicates whether the sending system considers that the link can distribute frames. 1 indicates yes. 0 indicates no.

·     G—Indicates whether the RX state machine of the sending system is in default state. 1 indicates yes. 0 indicates no.

·     H—Indicates whether the RX state machine of the sending system is in expired state. 1 indicates yes. 0 indicates no.

Aggregate Interface

Name of the aggregate interface.

Creation Mode

Creation mode of the dynamic aggregate interface:

·     Auto.

·     Manual.

Aggregation Mode

Aggregation group type:

·     S—Static.

·     D—Dynamic.

Management VLANs

Management VLANs. If no management VLANs are specified, this field displays None.

System ID

Local system ID, containing the local LACP system priority and the local LACP system MAC address.

Local

Information about the local end:

·     Port—Port type and number.

·     Status—Port state, which can be Selected, Unselected, or Individual.

·     Priority—Port priority.

·     Index—Port index.

·     Oper-Key—Operational key.

·     Flag—LACP state flag.

NOTE:

For static aggregation groups, the Index and Flag fields are not displayed.

Remote

Information about the peer end:

·     Actor—Type and number of the local port. This field displays the (R) flag next to the port if its peer port is the reference port.

·     Priority—Priority of the peer port.

·     Index—Index of the peer port.

·     Oper-Key—Operational key of the peer port.

·     System ID—System ID of the peer end.

·     Flag—LACP state flag of the peer end.

 

interface bridge-aggregation

Use interface bridge-aggregation to create a Layer 2 aggregate interface and enter its view, or enter the view of an existing Layer 2 aggregate interface.

Use undo interface bridge-aggregation to delete a Layer 2 aggregate interface.

Syntax

interface bridge-aggregation interface-number

undo interface bridge-aggregation interface-number

Default

No Layer 2 aggregate interfaces exist.

Views

System view

Predefined user roles

network-admin

Parameters

interface-number: Specifies a Layer 2 aggregate interface number. The value range for the interface-number argument is 1 to 1024.

Usage guidelines

When you create a Layer 2 aggregate interface, the system automatically creates a Layer 2 aggregation group with the same number. The aggregation group operates in static aggregation mode by default.

Deleting a Layer 2 aggregate interface also deletes the Layer 2 aggregation group. At the same time, the member ports of the aggregation group, if any, leave the aggregation group.

Examples

# Create Layer 2 aggregate interface Bridge-Aggregation 1, and enter its view.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1]

interface route-aggregation

Use interface route-aggregation to create a Layer 3 aggregate interface or subinterface and enter its view, or enter the view of an existing Layer 3 aggregate interface or subinterface.

Use undo interface route-aggregation to delete a Layer 3 aggregate interface or subinterface.

Syntax

interface route-aggregation { interface-number | interface-number.subnumber }

undo interface route-aggregation { interface-number | interface-number.subnumber }

Default

No Layer 3 aggregate interfaces or subinterfaces exist.

Views

System view

Predefined user roles

network-admin

Parameters

interface-number: Specifies a Layer 3 aggregate interface number. The value range for the interface-number argument is 1 to 1024.

interface-number.subnumber: Specifies a subinterface of a Layer 3 aggregate interface. The interface-number argument specifies the main interface number. The subnumber argument specifies the subinterface number and is separated from the main interface number by a dot (.). The value range for the subnumber argument is 1 to 4094.

Usage guidelines

When you create a Layer 3 aggregate interface, the system automatically creates a Layer 3 aggregation group with the same number. The Layer 3 aggregation group operates in static aggregation mode by default.

Deleting a Layer 3 aggregate interface also deletes the Layer 3 aggregation group and all its aggregate subinterfaces. At the same time, the member ports of the aggregation group, if any, leave the aggregation group.

Deleting a Layer 3 aggregate subinterface does not affect the state of the main interface and the corresponding aggregation group.

Examples

# Create Layer 3 aggregate interface Route-Aggregation 1 and enter its view.

<Sysname> system-view

[Sysname] interface route-aggregation 1

[Sysname-Route-Aggregation1]

# Create Layer 3 aggregate subinterface Route-Aggregation 1.1 and enter its view.

<Sysname> system-view

[Sysname] interface route-aggregation 1.1

[Sysname-Route-Aggregation1.1]

jumboframe enable

Use jumboframe enable to allow the jumbo frames on an interface to pass through.

Use undo jumboframe enable to deny jumbo frames on an interface.

Use undo jumboframe enable size to restore the default.

Syntax

jumboframe enable [ size ]

undo jumboframe enable [ size ]

Default

An interface allows jumbo frames with a maximum length of 9416 bytes to pass through.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Parameters

size: Specifies the maximum length of jumbo frames, in bytes. The value range for this argument is 1536 to 9416.

Usage guidelines

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Allow jumbo frames on Layer 2 aggregate interface Bridge-Aggregation 1.

<Sysname> System-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] jumboframe enable

lacp default-selected-port disable

Use lacp default-selected-port disable to disable the default port selection action for dynamic aggregation groups.

Use undo lacp default-selected-port disable to enable the default port selection action for dynamic aggregation groups.

Syntax

lacp default-selected-port disable

undo lacp default-selected-port disable

Default

The default port selection action is enabled for dynamic aggregation groups.

Views

System view

Predefined user roles

network-admin

Usage guidelines

The default port selection action applies to dynamic aggregation groups.

This action automatically chooses the port with the lowest ID from among all up member ports as a Selected port if none of them has received LACPDUs before the LACP timeout interval expires.

After this action is disabled, a dynamic aggregation group will not have any Selected ports to forward traffic if it has not received LACPDUs before the LACP timeout interval expires.

Examples

# Disable the default port selection action.

<Sysname> system-view

[Sysname] lacp default-selected-port disable

lacp edge-port

Use lacp edge-port to configure an aggregate interface as an edge aggregate interface.

Use undo lacp edge-port to restore the default.

Syntax

lacp edge-port

undo lacp edge-port

Default

An aggregate interface does not operate as an edge aggregate interface.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Usage guidelines

Use this command on the aggregate interface that connects the device to a server if dynamic link aggregation is configured only on the device. This feature improves link reliability by enabling all member ports of the aggregation group to forward packets.

This command takes effect only on an aggregate interface corresponding to a dynamic aggregation group.

Link-aggregation traffic redirection cannot operate correctly on an edge aggregate interface.

Examples

# Configure Layer 2 aggregate interface Bridge-Aggregation 1 as an edge aggregate interface.

<Sysname> System-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] lacp edge-port

lacp mode

Use lacp mode passive to configure LACP to operate in passive mode on a port.

Use undo lacp mode to restore the default.

Syntax

lacp mode passive

undo lacp mode

Default

LACP operates in active mode on a port.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

This command takes effect only on member ports of dynamic aggregation groups.

When LACP is operating in passive mode on a local member port and its peer port, both ports cannot send LACPDUs. When LACP is operating in active mode on either end of a link, both ports can send LACPDUs.

Examples

# Configure LACP to operate in passive mode on Twenty-FiveGigE 1/0/1.

<Sysname> system-view

[Sysname] interface twenty-fivegige 1/0/1

[Sysname-Twenty-FiveGigE1/0/1] lacp mode passive

lacp period short

Use lacp period short to enable the short LACP timeout interval (3 seconds) on an interface.

Use undo lacp period to restore the default.

Syntax

lacp period short

undo lacp period

Default

The LACP timeout interval is the long timeout interval (90 seconds) on an interface.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

To avoid traffic interruption during an ISSU, do not enable the short LACP timeout interval before performing the ISSU. For more information about ISSU, see Fundamentals Configuration Guide.

Examples

# Enable the short LACP timeout interval (3 seconds) on Twenty-FiveGigE 1/0/1.

<Sysname> system-view

[Sysname] interface twenty-fivegige 1/0/1

[Sysname-Twenty-FiveGigE1/0/1] lacp period short

lacp select speed

Use lacp select speed to configure a dynamic aggregation group to use port speed as the prioritized criterion for reference port selection.

Use undo lacp select speed to restore the default.

Syntax

lacp select speed

undo lacp select speed

Default

Port ID is the prioritized criterion for reference port selection in a dynamic aggregation group.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Usage guidelines

CAUTION

CAUTION:

Changing reference port selection criteria might cause transient traffic interruption. When you use this command, make sure you understand its impact on your network.

 

This command enables a dynamic aggregation group to select a high-speed member port as the reference port.

You must execute this command at both ends of the aggregate link so the peer aggregation systems use the same criteria for reference port selection.

As a best practice, shut down the peer aggregate interfaces before you execute this command and bring up the interfaces after this command is executed on both of them.

This command takes effect only on dynamic aggregate interfaces. On a static aggregate interface, you can execute this command, but the setting cannot take effect.

Examples

# Specify port speed as the prioritized criterion for reference port selection on Layer 2 dynamic aggregate interface Bridge-Aggregation 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-aggregation mode dynamic

[Sysname-Bridge-Aggregation1] lacp select speed

lacp system-mac

Use lacp system-mac to set the LACP system MAC address.

Use undo lacp system to restore the default.

Syntax

lacp system-mac mac-address

undo lacp system-mac

Default

The LACP system MAC address is the bridge MAC address of the device.

Views

System view

Predefined user roles

network-admin

Parameters

mac-address: Specifies a MAC address in the format of H-H-H. The MAC address cannot be an all-zero, all-F, or multicast MAC address.

Usage guidelines

All S-MLAG devices must use the same LACP system MAC address.

The LACP system MAC address configured by using this command takes effect only on aggregate interfaces in S-MLAG groups. Aggregate interfaces not in S-MLAG groups do not use the configured LACP system MAC address to send LACPDUs. To identify the LACP system MAC address used by a link aggregation group, examine the System ID field in the output from the display link-aggregation verbose command.

Examples

# Set the LACP system MAC address to 0001-0001-0001.

<Sysname> system-view

[Sysname] lacp system-mac 1-1-1

Related commands

display link-aggregation verbose

lacp system-number

Use lacp system-number to set the LACP system number used by the local device.

Use undo lacp system-number to restore the default.

Syntax

lacp system-number number

undo lacp system-number

Default

The LACP system number is not set.

Views

System view

Predefined user roles

network-admin

Parameters

number: Specifies a number in the range of 1 to 3.

Usage guidelines

You must assign a unique LACP system number to each S-MLAG device.

The LACP system number configured by using this command takes effect only on aggregate interfaces in S-MLAG groups. Aggregate interfaces not in S-MLAG groups do not use the configured LACP system number in LACPDUs. To view the LACP system number in LACPDUs, examine the Index field in the output from the display link-aggregation verbose command.

Examples

# Set the LACP system number to 1.

<Sysname> system-view

[Sysname] lacp system-number 1

Related commands

display link-aggregation verbose

lacp system-priority

Use lacp system-priority to set the LACP system priority.

Use undo lacp system-priority to restore the default.

Syntax

lacp system-priority priority

undo lacp system-priority

Default

The LACP system priority is 32768.

Views

System view

Predefined user roles

network-admin

Parameters

priority: Specifies the LACP system priority in the range of 0 to 65535. The smaller the value, the higher the LACP system priority.

Usage guidelines

All S-MLAG devices must use the same LACP system priority.

Examples

# Set the LACP system priority to 64.

<Sysname> system-view

[Sysname] lacp system-priority 64

Related commands

link-aggregation port-priority

link-aggregation auto-aggregation enable

Use link-aggregation auto-aggregation enable to enable automatic link aggregation.

Use undo link-aggregation auto-aggregation enable to disable automatic link aggregation.

Syntax

link-aggregation auto-aggregation enable

undo link-aggregation auto-aggregation enable

Default

Automatic link aggregation is disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

After you enable automatic link aggregation and LLDP on two connected devices, they automatically establish a dynamic link aggregation based on the information in incoming LLDP frames. The devices each automatically create a dynamic aggregate interface and assign the redundant ports connected to the peer to the aggregation group of that interface. If you disable LLDP or automatic link aggregation on one device, that device removes the aggregation member ports from the aggregation group, but it will retain the aggregate interface. This event will not trigger member port removal actions on the peer device.

If automatic link aggregation is enabled, subinterface creation might fail on LLDP-enabled Layer 3 Ethernet interfaces. As a best practice, do not create subinterfaces on LLDP-enabled Layer 3 Ethernet interfaces.

To ensure correct operation of an automatically created aggregate interface, do not modify the configuration on the member ports of its aggregation group. Doing so might cause the member ports to be removed from the aggregation group.

For DRNI to operate correctly, do not use this command on a DR system.

On an interface, the port link-aggregation group setting takes precedence over automatic link aggregation. The interface will not be added to the aggregation group of an automatically created aggregate interface if it has been the member port of a manually created aggregate interface.

Examples

# Enable automatic link aggregation.

<Sysname> system

[Sysname] link-aggregation auto-aggregation enable

Related commands

lldp enable

lldp global enable

port link-aggregation group

link-aggregation bfd ipv4

Use link-aggregation bfd ipv4 to enable BFD for an aggregation group.

Use undo link-aggregation bfd to disable BFD for an aggregation group.

Syntax

link-aggregation bfd ipv4 source ip-address destination ip-address

undo link-aggregation bfd

Default

BFD is disabled for an aggregation group.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Parameters

source ip-address: Specifies the unicast source IP address of BFD sessions. The source IP address cannot be 0.0.0.0.

destination ip-address: Specifies the unicast destination IP address of BFD sessions. The destination IP address cannot be 0.0.0.0.

Usage guidelines

Make sure the source and destination IP addresses are reversed between the two ends of an aggregate link. For example, if you execute link-aggregation bfd ipv4 source 1.1.1.1 destination 2.2.2.2 at the local end, execute link-aggregation bfd ipv4 source 2.2.2.2 destination 1.1.1.1 at the peer end. The source and destination IP addresses cannot be the same.

The BFD parameters configured on an aggregate interface take effect on all BFD sessions established by the member ports in its aggregation group. BFD on a link aggregation supports only control packet mode for session establishment and maintenance. The two ends of an established BFD session can only operate in Asynchronous mode. For more information about BFD, see High Availability Configuration Guide.

As a best practice, do not configure BFD for any protocols on a BFD-enabled aggregate interface.

Make sure the number of member ports in the BFD-enabled aggregation group is less than or identical to the number of BFD sessions supported by the device. If the aggregation group contains more member ports than the supported sessions, some Selected ports might change to the Unselected state.

If the number of BFD sessions differs between the two ends of an aggregate link, check their settings for inconsistency in the maximum number of Selected ports. You must make sure the two ends have the same setting for the maximum number of Selected ports.

Examples

# Enable BFD for Layer 2 aggregation group 1, and specify the source and destination IP addresses as 1.1.1.1 and 2.2.2.2 for BFD sessions.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-aggregation bfd ipv4 source 1.1.1.1 destination 2.2.2.2

link-aggregation global load-sharing algorithm

Use link-aggregation global load-sharing algorithm to configure a link aggregation load sharing algorithm.

Use undo link-aggregation global load-sharing algorithm to restore the default.

Syntax

link-aggregation global load-sharing algorithm algorithm-number

undo link-aggregation global load-sharing algorithm

Default

No link aggregation load sharing algorithm is configured.

Views

System view

Predefined user roles

network-admin

Parameters

algorithm algorithm-number: Specifies an algorithm by its number. The value range for the algorithm-number argument is 1 to 13.

Usage guidelines

This command is intended to help you optimize load sharing performance when the default load sharing mode is used. It does not take effect on per-flow load sharing.

If you execute this command multiple times, the most recent configuration takes effect.

Each load sharing algorithm represents a CRC calculation method.

You can use a load sharing algorithm and a hash seed individually or in combination to obtain the optimal load sharing performance.

When you try each algorithm or algorithm and seed combination, use the display counters command to verify the load sharing result.

Examples

# Specify algorithm 1 as the link aggregation load sharing algorithm.

<Sysname> system-view

[Sysname] link-aggregation global load-sharing algorithm 1

Related commands

display counters

display link-aggregation load-sharing mode

link-aggregation global load-sharing mode

link-aggregation global load-sharing seed

link-aggregation load-sharing mode

link-aggregation global load-sharing mode

Use link-aggregation global load-sharing mode to set the global link-aggregation load sharing mode.

Use undo link-aggregation global load-sharing mode to restore the default.

Syntax

link-aggregation global load-sharing mode { destination-ip | destination-mac | destination-port | ingress-port | mpls-label1 | mpls-label2 | source-ip | source-mac | source-port } *

undo link-aggregation global load-sharing mode

Default

Packets are load shared depending on their packet type, as follows:

·     Layer 2 frames are load shared based on the source and destination MAC addresses.

·     IP packets are load shared based on the source and destination IP addresses.

Views

System view

Predefined user roles

network-admin

Parameters

destination-ip: Distributes traffic based on destination IP addresses.

destination-mac: Distributes traffic based on destination MAC addresses.

destination-port: Distributes traffic based on destination ports.

ingress-port: Distributes traffic based on ingress ports.

mpls-label1: Distributes MPLS traffic based on Layer 1 labels.

mpls-label2: Distributes MPLS traffic based on Layer 2 labels.

source-ip: Distributes traffic based on source IP addresses.

source-mac: Distributes traffic based on source MAC addresses.

source-port: Distributes traffic based on source ports.

Usage guidelines

If you execute this command multiple times, the most recent configuration takes effect.

If an unsupported load sharing mode is set, the device displays an error message.

The following are the global load sharing modes supported on the device:

·     Default mode (load sharing mode automatically determined based on the packet type).

·     Source IP.

·     Destination.

·     Source MAC.

·     Destination MAC.

·     Layer 1 MPLS label.

·     Layer 2 MPLS label.

·     Source IP and destination IP.

·     Source IP and source port.

·     Destination IP and destination port.

·     Layer 1 MPLS label and Layer 2 MPLS label.

·     Source IP, source port, destination IP, and destination port.

·     Any combination of ingress port, source MAC, and destination MAC.

Examples

# Set the global load sharing mode to load share packets based on destination MAC addresses.

<Sysname> system-view

[Sysname] link-aggregation global load-sharing mode destination-mac

Related commands

link-aggregation load-sharing mode

link-aggregation global load-sharing offset

Use link-aggregation global load-sharing offset to set a hash offset to adjust the load balancing hash results on link aggregations.

Use undo link-aggregation global load-sharing offset to restore the default.

Syntax

link-aggregation global load-sharing offset offset-value

undo link-aggregation global load-sharing offset

Default

No hash offset is configured for load sharing on link aggregations.

Views

System view

Predefined user roles

network-admin

Parameters

offset-value: Specifies a hash offset. The value range for this argument is 1 to 63.

Usage guidelines

IMPORTANT

IMPORTANT:

Misuse of this command causes unbalanced traffic distribution. Make sure you are fully aware of the impacts of this command when you execute it on a live network.

 

If undesirable traffic imbalance occurs on link aggregations, you can use this command to adjust the load sharing results on link aggregations.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Set the hash offset to 2 for the load balancing hash results on link aggregations.

<Sysname> system

[Sysname] link-aggregation global load-sharing offset 2

link-aggregation global load-sharing seed

Use link-aggregation global load-sharing seed to configure a link aggregation load sharing hash seed.

Use undo link-aggregation global load-sharing seed to restore the default.

Syntax

link-aggregation global load-sharing seed seed-number

undo link-aggregation global load-sharing seed

Default

No hush seed is configured.

Views

System view

Predefined user roles

network-admin

Parameters

seed seed-number: Specifies a seed. The value range for the seed-number argument is 1 to FFFFFFFF.

Usage guidelines

This command is intended to help you optimize load sharing performance when the default load sharing mode is used. It does not take effect on per-flow load sharing.

If you execute this command multiple times, the most recent configuration takes effect.

The load sharing hash seed is used in hashing.

You can use a load sharing algorithm and a hash seed individually or in combination to obtain the optimal load sharing performance.

When you try each algorithm or algorithm and seed combination, use the display counters command to verify the load sharing result.

Examples

# Specify 1023 (3FF in hexadecimal format) as the link aggregation load sharing hash seed.

<Sysname> system-view

[Sysname] link-aggregation global load-sharing seed 3FF

Related commands

display counters

display link-aggregation load-sharing mode

link-aggregation global load-sharing algorithm

link-aggregation global load-sharing mode

link-aggregation load-sharing mode

link-aggregation global load-sharing tunnel

Use link-aggregation global load-sharing tunnel to set the load sharing mode for tunneled traffic on link aggregations.

Use undo link-aggregation global load-sharing tunnel to restore the default.

Syntax

link-aggregation global load-sharing tunnel { inner | outer }

undo link-aggregation global load-sharing tunnel

Default

Tunneled traffic is distributed based on the inner IP header on aggregate links.

Views

System view

Predefined user roles

network-admin

Parameters

inner: Distributes tunneled traffic based on the inner IP header.

outer: Distributes tunneled traffic based on the outer IP header.

Usage guidelines

This command sets the criterion used by aggregation groups to distribute tunneled traffic for load sharing.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Set the load sharing mode to inner IP header for tunneled traffic on link aggregations.

<Sysname> system

[Sysname] link-aggregation global load-sharing tunnel inner

link-aggregation ignore vlan

Use link-aggregation ignore vlan to configure a Layer 2 aggregate interface to ignore the specified VLANs.

Use undo link-aggregation ignore vlan to remove the specified ignored VLANs for a Layer 2 aggregate interface.

Syntax

link-aggregation ignore vlan vlan-id-list

undo link-aggregation ignore vlan vlan-id-list

Default

A Layer 2 aggregate interface does not ignore any VLANs.

Views

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 10 VLAN items. Each item specifies a VLAN ID or a range of VLAN IDs in the form of vlan-id1 to vlan-id2. The value range for VLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument.

Usage guidelines

This command takes effect only when the link type of the Layer 2 aggregate interface is hybrid or trunk.

By default, you cannot add a port to a Layer 2 link aggregation group if it has a different VLAN permit state or tagging mode than the aggregate interface.

To have a port participate in a Layer 2 aggregation despite its difference with the aggregate interface in the settings of a VLAN, configure that VLAN as an ignored VLAN.

Examples

# Configure Layer 2 aggregate interface bridge-aggregation 1 to ignore VLAN 50.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-aggregation ignore vlan 50

link-aggregation lacp traffic-redirect-notification enable

Use link-aggregation lacp traffic-redirect-notification enable to enable link-aggregation traffic redirection.

Use undo link-aggregation lacp traffic-redirect-notification enable to disable link-aggregation traffic redirection.

Syntax

link-aggregation lacp traffic-redirect-notification enable

undo link-aggregation lacp traffic-redirect-notification enable

Default

Link-aggregation traffic redirection is disabled.

Views

System view

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Usage guidelines

This feature redirects traffic on a Selected port to the remaining available Selected ports of an aggregation group if one of the following events occurs:

·     The port is shut down by using the shutdown command.

·     The slot that hosts the port reboots, and the aggregation group spans multiple slots.

 

 

NOTE:

The device does not redirect traffic to member ports that become Selected during the traffic redirection process.

 

This feature ensures zero packet loss for known unicast traffic, but it does not protect other types of traffic.

This feature applies only to dynamic link aggregation groups.

To prevent traffic interruption, enable link-aggregation traffic redirection on devices at both ends of the aggregate link.

To prevent packet loss that might occur when a slot reboots, do not enable spanning tree together with link-aggregation traffic redirection.

Link-aggregation traffic redirection cannot operate correctly on an edge aggregate interface.

Global link-aggregation traffic redirection settings take effect on all aggregation groups. A link aggregation group preferentially uses the group-specific link-aggregation traffic redirection settings. If group-specific link-aggregation traffic redirection is not configured, the group uses the global link-aggregation traffic redirection settings.

As a best practice, enable link-aggregation traffic redirection on a per-interface basis. If you enable this feature globally, communication with a third-party peer device might be affected if the peer is not compatible with this feature.

Examples

# Enable link-aggregation traffic redirection.

<Sysname> system-view

[Sysname] link-aggregation lacp traffic-redirect-notification enable

link-aggregation load-sharing ignore

Use link-aggregation load-sharing ignore to specify ignored packet fields for default link-aggregation load sharing.

Use undo link-aggregation load-sharing ignore to restore the default.

Syntax

link-aggregation load-sharing ignore { destination-ip | destination-mac | destination-port | ethernet-type | ingress-port | ip-protocol | mpls-label1 | mpls-label2 | mpls-label3 | source-ip | source-mac | source-port | vlan-id } *

undo link-aggregation load-sharing ignore

Default

No ignored packet fields are specified for default link-aggregation load sharing.

Views

System view

Predefined user roles

network-admin

Parameters

destination-ip: Specifies the destination IP address.

destination-mac: Specifies the destination MAC address.

destination-port: Specifies the destination port.

ethernet-type: Specifies the EtherType value.

ingress-port: Specifies the ingress port.

ip-protocol: Specifies IP protocol type.

mpls-label1: Specifies Layer 1 MPLS label.

mpls-label2: Specifies Layer 2 MPLS label.

mpls-label3: Specifies Layer 3 MPLS label.

source-ip: Specifies the source IP address.

source-mac: Specifies the source MAC address.

source-port: Specifies the source port.

vlan-id: Specifies the VLAN ID.

Usage guidelines

In default load sharing mode, an aggregation group might fail to load share traffic in a balanced manner. To resolve the problem, you can configure the device to ignore specific packet fields for link-aggregation load sharing. The specified packet field values are ignored in load sharing calculation.

Examples

# Configure the device to ignore the EtherType value for default link-aggregation load sharing.

<Sysname> system-view

[Sysname] link-aggregation load-sharing ignore ethernet-type

Related commands

link-aggregation global load-sharing mode

link-aggregation load-sharing mode

Use link-aggregation load-sharing mode to set the link-aggregation load sharing mode for an aggregation group.

Use undo link-aggregation load-sharing mode to restore the default.

Syntax

link-aggregation load-sharing mode { { destination-ip | destination-mac | source-ip | source-mac } * | flexible | per-packet | resilient }

undo link-aggregation load-sharing mode

Default

The group-specific load sharing mode is the same as the global load sharing mode.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Parameters

destination-ip: Distributes traffic based on destination IP addresses.

destination-mac: Distributes traffic based on destination MAC addresses.

source-ip: Distributes traffic based on source IP addresses.

source-mac: Distributes traffic based on source MAC addresses.

flexible: Automatically chooses a load sharing mode depending on the packet type. For example, the load sharing mode differs for Layer 2, IPv4, IPv6, and MPLS packets.

per-packet: Distributes traffic on a per-packet basis.

resilient: Redistributes as less traffic as possible when a link state change occurs to minimize its impact on services. In this mode, an aggregation group distributes traffic based on the default load sharing mode when no link change occurs. When a link fails, the system rehashes the traffic on the failed link across the remaining Selected links. Because the existing traffic on the Selected links is not rehashed as in other modes, impact on the ongoing services is minimized. When the failed link recovers, the system rehashes part of the traffic on the existing Selected links to the recovered link. Because not all traffic is rehashed, the traffic distribution pattern might differ from what it was before the link failure. This keyword is available in Release 6555P02 and later.

Usage guidelines

If you execute this command multiple times, the most recent configuration takes effect.

If an unsupported load sharing mode is set, the device displays an error message.

The following are the load sharing modes supported in aggregate interface view:

·     Load sharing mode automatically determined based on the packet type.

·     Per-packet load sharing.

·     Source IP.

·     Destination IP.

·     Source MAC.

·     Destination MAC.

·     Source IP and destination IP.

·     Source MAC and destination MAC.

·     Resilient load sharing.

To enable resilient load sharing on an aggregate interface that has Selected member ports, you must first shut it down.

Examples

# Configure Layer 2 aggregation group 1 to load share packets based on destination MAC addresses.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-aggregation load-sharing mode destination-mac

Related commands

link-aggregation global load-sharing mode

link-aggregation load-sharing mode local-first

Use link-aggregation load-sharing mode local-first to enable local-first load sharing for link aggregation.

Use undo link-aggregation load-sharing mode local-first to disable local-first load sharing for link aggregation.

Syntax

link-aggregation load-sharing mode local-first

undo link-aggregation load-sharing mode local-first

Default

Local-first load sharing is enabled for link aggregation.

Views

System view

Predefined user roles

network-admin

Usage guidelines

Use local-first load sharing in a multidevice link aggregation scenario to distribute traffic preferentially across member ports on the ingress card or device. Local-first load sharing takes effect only on known unicast traffic.

If you disable local-first load sharing, packets on an aggregate interface are load shared among all its Selected ports on IRF member devices.

Examples

# Disable local-first load sharing for link aggregation.

<Sysname> system-view

[Sysname] undo link-aggregation load-sharing mode local-first

link-aggregation management-port

Use link-aggregation management-port to configure a management port for an aggregation group.

Use undo link-aggregation management-port to restore the default.

Syntax

link-aggregation management-port

undo link-aggregation management-port

Default

A port does not act as a management port.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

You can execute this command on multiple member ports of an aggregation group. The system chooses the member port with the smallest port number as the management port of the aggregation group.

Examples

# Configure Twenty-FiveGigE 1/0/1 as the management port of its aggregation group.

<Sysname> system-view

[Sysname] interface twenty-fivegige 1/0/1

[Sysname-Twenty-FiveGigE1/0/1] link-aggregation management-port

link-aggregation management-subnet

Use link-aggregation management-subnet to specify a link aggregation management subnet.

Use undo link-aggregation management-subnet to remove a link aggregation management subnet.

Syntax

link-aggregation management-subnet ip-address { mask | mask-length }

undo link-aggregation management-subnet ip-address { mask | mask-length }

Default

No link aggregation management subnets are specified.

Views

System view

Predefined user roles

network-admin

Parameters

ip-address: Specifies an IP address in dotted decimal notation.

mask: Specifies the subnet mask in dotted decimal notation.

mask-length: Specifies the mask length. The value range is 0 to 32.

Usage guidelines

Typically, an aggregate interface distributes traffic across its Selected member ports. The uplink and downlink traffic of a host might be distributed to different member ports. To make sure the bidirectional traffic of a subnet traverses the same member port, you can exclude that subnet from load sharing by specifying it as a link aggregation management subnet.

When a link aggregate interface receives an ARP packet from the management subnet, the device looks up the sender IP address in the ARP table for a matching entry.

·     If no matching entry exists, the device creates an ARP entry on the aggregation member port from which the packet came in. This mechanism ensures that the returned downlink traffic will be forwarded out of the member port that received the uplink traffic.

·     If an ARP entry already exists on a different port than the link aggregate interface or its member ports, the device does not update that ARP entry. Instead, the device broadcasts an ARP request out of all ports to relearn the ARP entry.

When a link aggregate interface sends an ARP packet to the management subnet, the device sends the packet out of all Selected member ports of the link aggregate interface.

You can configure a maximum of 20 management subnets.

To ensure correct packet forwarding, delete all ARP entries of a subnet before you specify it as a management subnet or after you remove it from the management subnet list.

If you are using link aggregation management subnets, do not use the following features:

·     DRNI. For more information, see Layer 2—LAN Switching Configuration Guide.

·     ARP snooping. For more information, see Layer 3—IP Services Configuration Guide.

Examples

# Specify 22.1.1.1/8 as a link aggregation management subnet.

<Sysname> system-view

[Sysname] link-aggregation management-subnet 22.1.1.1 255.0.0.0

link-aggregation management-vlan

Use link-aggregation management-vlan to specify link aggregation management VLANs.

Use undo link-aggregation management-vlan to remove link aggregation management VLANs.

Syntax

link-aggregation management-vlan vlan-id-list

undo link-aggregation management-vlan vlan-id-list

Default

No link aggregation management VLANs are specified.

Views

System view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 10 link aggregation management VLAN items. Each item specifies a VLAN ID or a range of VLAN IDs in the form of vlan-id1 to vlan-id2. The value range for VLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument.

Usage guidelines

If you execute this command multiple times, the system allows all specified management VLANs whose total number cannot exceed 64.

You cannot specify VLAN 1 as a link aggregation management VLAN.

Examples

# Specify VLAN 2 and VLAN 3 as link aggregation management VLANs.

<Sysname> system-view

[Sysname] link-aggregation management-vlan 2 3

link-aggregation mode

Use link-aggregation mode dynamic to configure an aggregation group to operate in dynamic aggregation mode and enable LACP.

Use undo link-aggregation mode to restore the default.

Syntax

link-aggregation mode dynamic

undo link-aggregation mode

Default

An aggregation group operates in static aggregation mode.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Usage guidelines

When you change the aggregation mode, make sure you understand the impact of the change on services.

Aggregation mode change might cause Selected member ports to become Unselected.

Examples

# Configure Layer 2 aggregation group 1 to operate in dynamic aggregation mode.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-aggregation mode dynamic

link-aggregation port-priority

Use link-aggregation port-priority to set the port priority of an interface.

Use undo link-aggregation port-priority to restore the default.

Syntax

link-aggregation port-priority priority

undo link-aggregation port-priority

Default

The port priority of an interface is 32768.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Parameters

priority: Specifies the port priority in the range of 0 to 65535. The smaller the value, the higher the port priority.

Examples

# Set the port priority to 64 for Layer 2 Ethernet interface Twenty-FiveGigE 1/0/1.

<Sysname> system-view

[Sysname] interface twenty-fivegige 1/0/1

[Sysname-Twenty-FiveGigE1/0/1] link-aggregation port-priority 64

# Set the port priority to 64 for Layer 3 Ethernet interface Twenty-FiveGigE 1/0/2.

<Sysname> system-view

[Sysname] interface twenty-fivegige 1/0/2

[Sysname-Twenty-FiveGigE1/0/2] link-aggregation port-priority 64

Related commands

lacp system-priority

link-aggregation selected-port maximum

Use link-aggregation selected-port maximum to set the maximum number of Selected ports allowed in an aggregation group.

Use undo link-aggregation selected-port maximum to restore the default.

Syntax

link-aggregation selected-port maximum max-number

undo link-aggregation selected-port maximum

Default

The maximum number of Selected ports allowed in an aggregation group is 32.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Parameters

max-number: Specifies the maximum number of Selected ports allowed in an aggregation group. The value range for this argument is 1 to 32.

Usage guidelines

Executing this command might cause some of the Selected ports in an aggregation group to become Unselected ports.

The maximum number of Selected ports allowed in the aggregation groups must be the same for the local and peer ends.

For an aggregation group, the maximum number of Selected ports must be equal to or higher than the minimum number of Selected ports.

The maximum number of Selected ports allowed in an aggregation group is limited by one of the following values, whichever value is smaller:

·     Maximum number set by using the link-aggregation selected-port maximum command.

·     Maximum number of Selected ports allowed by the link aggregation capability.

You can implement backup between two ports by performing the following tasks:

·     Assigning two ports to an aggregation group.

·     Setting the maximum number of Selected ports to 1 for the aggregation group.

Then, only one Selected port is allowed in the aggregation group at any point in time, while the Unselected port acts as a backup port.

Examples

# Set the maximum number of Selected ports to 5 for Layer 2 aggregation group 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-aggregation selected-port maximum 5

Related commands

link-aggregation selected-port minimum

link-aggregation selected-port minimum

Use link-aggregation selected-port minimum to set the minimum number of Selected ports in an aggregation group.

Use undo link-aggregation selected-port minimum to restore the default.

Syntax

link-aggregation selected-port minimum { min-number | percentage number }

undo link-aggregation selected-port minimum

Default

The minimum number of Selected ports in an aggregation group is not specified.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Parameters

min-number: Specifies the minimum number of Selected ports in an aggregation group required to bring up the aggregate interface. The value range for this argument is 1 to 32.

percentage number: Sets the minimum percentage of Selected ports in an aggregation group. The value range for the number argument is 1 to 100.

Usage guidelines

IMPORTANT

IMPORTANT:

After you set the minimum percentage of Selected ports for an aggregation group, aggregate interface flapping might occur when ports join or leave an aggregation group. Make sure you are fully aware of the impacts of this setting when you configure it on a live network.

 

You can set either the minimum number or the minimum percentage of Selected ports for an aggregation group. If you configure both settings on an aggregate interface, the higher Selected port number limit takes effect.

Executing this command might cause all member ports in the aggregation group to become Unselected ports.

You must set the same minimum number or minimum percentage of Selected ports at the two ends of an aggregate link.

For an aggregation group, the minimum number of Selected ports must be equal to or lower than the maximum number of Selected ports.

Examples

# Set the minimum number of Selected ports to 3 for Layer 2 aggregation group 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-aggregation selected-port minimum 3

Related commands

link-aggregation selected-port maximum

link-delay

Use link-delay to set the physical state change suppression interval on an aggregate interface.

Use undo link-delay to restore the default.

Syntax

link-delay { down | up } [ msec ] delay-time

undo link-delay { down | up }

Default

Each time the physical link of an aggregate interface goes up or comes down, the system immediately reports the change to the CPU.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Parameters

down: Suppresses link-down events.

up: Suppresses link-up events.

msec: Sets the physical state change suppression interval in milliseconds. If you do not specify this keyword, the suppression interval is in seconds.

delay-time: Sets the physical state change suppression interval. To report a physical state change immediately to the CPU, set the interval to 0.

·     If you do not specify the msec keyword, the value range is 0 to 300 seconds.

·     If you specify the msec keyword, the value range is 0 to 10000 milliseconds, and the value must be a multiple of 100.

Usage guidelines

You can configure this feature to suppress link-down events, link-up events, or both. If an event of the specified type persists when the suppression interval expires, the system reports the event.

On an interface, you can configure different suppression intervals for link-up and link-down events. If you execute the link-delay command multiple times for an event type, the most recent configuration takes effect on that event type.

Use this command on an aggregate interface to reduce the impact of interface flapping on upper-layer services, for example, on a DRNI IPP. For more information about IPPs, see Layer 2—LAN Switching Configuration Guide.

Examples

# Set the link-down event suppression interval to 8 seconds on Bridge-Aggregation 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-delay down 8

# Set the link-down event suppression interval to 8 seconds on Route-Aggregation 1.

<Sysname> system-view

[Sysname] interface route-aggregation 1

[Sysname-Route-Aggregation1] link-delay down 8

mac-address

Use mac-address to assign a MAC address to an aggregate interface.

Use undo mac-address to restore the default.

Syntax

mac-address mac-address

undo mac-address

Default

All Layer 3 aggregate interfaces and subinterfaces on the device use the same default MAC address.

Views

Layer 3 aggregate interface view

Layer 3 aggregate subinterface view

Predefined user roles

network-admin

Parameters

mac-address: Specifies a MAC address in the format of H-H-H.

Usage guidelines

The default MAC address of Layer 3 aggregate interfaces and subinterfaces varies by device. You can use the display interface command to view the MAC address of a Layer 3 aggregate interface or subinterface.

Examples

# Assign MAC address 0001-0001-0002 to interface Route-Aggregation 1.

<Sysname> system-view

[Sysname] interface route-aggregation 1

[Sysname-Route-Aggregation1] mac-address 1-1-2

mtu

Use mtu to set the MTU of a Layer 3 aggregate interface or subinterface.

Use undo mtu to restore the default.

Syntax

mtu size

undo mtu

Default

The MTU of Layer 3 aggregate interfaces and subinterfaces is 1500 bytes.

Views

Layer 3 aggregate interface view

Layer 3 aggregate subinterface view

Predefined user roles

network-admin

Parameters

size: Specifies an MTU in bytes. The value range for this argument is 128 to 9008.

Examples

# Set the MTU of interface Route-Aggregation 1 to 1430 bytes.

<Sysname> system-view

[Sysname] interface route-aggregation 1

[Sysname-Route-Aggregation1] mtu 1430

Related commands

display interface

port bridge enable

Use port bridge enable to enable port bridging on a Layer 2 aggregate interface.

Use undo port bridge enable to disable port bridging on a Layer 2 aggregate interface.

Syntax

port bridge enable

undo port bridge enable

Default

Port bridging is disabled on a Layer 2 aggregate interface.

Views

Layer 2 aggregate interface view

Predefined user roles

network-admin

Usage guidelines

By default, the device drops a packet if its outgoing interface is the incoming interface where the packet arrived. Port bridging enables a Layer 2 aggregate interface to reflect a packet back when it is both the incoming and outgoing interfaces of that packet.

Examples

# Enable port bridging on Bridge-Aggregation 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] port bridge enable

port link-aggregation group

Use port link-aggregation group to assign an interface to an aggregation group.

Use undo port link-aggregation group to remove an interface from the aggregation group to which it belongs.

Syntax

port link-aggregation group { group-id [ force ] | auto [ group-id ] }

undo port link-aggregation group

Default

An interface does not belong to any aggregation group.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

Parameters

group-id: Specifies an aggregation group by its aggregate interface number. The value range for the number argument is 1 to 1024.

force: Enables the current interface to synchronize attribute configurations from the aggregate interface. If you do not specify this keyword, the current interface does not synchronize attribute configurations from the aggregate interface when it joins the aggregation group. This keyword is supported only on Layer 2 Ethernet interfaces.

auto: Enables automatic assignment.

Usage guidelines

A Layer 2 Ethernet interface can be assigned to a Layer 2 aggregation group only. A Layer 3 Ethernet interface can be assigned to a Layer 3 aggregation group only.

An interface can belong to only one aggregation group.

An interface cannot join an aggregation group if it has different attribute configurations from the aggregate interface. After joining an aggregation group, an interface inherits the attribute configurations on the aggregate interface. You can modify the attribute configurations only on the aggregate interface.

The force keyword takes effect only when you assign the interface to an aggregation group. It cannot be saved in the running configuration or a configuration file.

Automatic assignment is available only on Layer 2 and Layer 3 Ethernet interfaces.

When you enable automatic assignment, you can specify a preferred aggregation group, which must be in dynamic mode.

The device assigns the interface to the preferred aggregation group as long as the LACPDUs received on the interface match the peer information of the reference port in the group.

If you do not specify a preferred group or if the preferred group match fails, the device attempts to select a matching group from the existing dynamic aggregation groups. If no match is found, the device creates a dynamic aggregation group based on the LACPDUs and assigns the interface to that aggregation group.

As a best practice, do not modify the configuration on an automatically created aggregate interface or its member ports.

Examples

# Assign Layer 2 Ethernet interface Twenty-FiveGigE 1/0/1 to Layer 2 aggregation group 1.

<Sysname> system-view

[Sysname] interface twenty-fivegige 1/0/1

[Sysname-Twenty-FiveGigE1/0/1] port link-aggregation group 1

# Assign Layer 3 Ethernet interface Twenty-FiveGigE 1/0/2 to Layer 3 aggregation group 2.

<Sysname> system-view

[Sysname] interface twenty-fivegige 1/0/2

[Sysname-Twenty-FiveGigE1/0/2] port link-aggregation group 2

port s-mlag group

Use port s-mlag group to assign an aggregate interface to an S-MLAG group.

Use undo port s-mlag group to restore the default.

Syntax

port s-mlag group group-id

undo port s-mlag group

Default

An aggregate interface is not in any S-MLAG group.

Views

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

group-id: Specifies an S-MLAG group number in the range of 1 to 1024.

Usage guidelines

You can assign only Layer 2 aggregate interfaces in dynamic mode to an S-MLAG group.

Each S-MLAG group can contain only one aggregate interface on each device.

The aggregate interfaces in an S-MLAG group cannot be used as DR interfaces or IPPs in DRNI. For more information about DR interfaces and IPPs, see DRNI configuration in Layer 2—LAN Switching Configuration Guide.

Examples

# Assign Bridge-Aggregation 1 to S-MLAG group 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] port s-mlag group 1

reset counters interface

Use reset counters interface to clear statistics for the specified aggregate interfaces.

Syntax

reset counters interface [ { bridge-aggregation | route-aggregation } [ interface-number ] ]

Views

User view

Predefined user roles

network-admin

Parameters

bridge-aggregation: Specifies Layer 2 aggregate interfaces.

route-aggregation: Specifies Layer 3 aggregate interfaces.

interface-number: Specifies an existing aggregate interface number.

Usage guidelines

Use this command to clear history statistics before you collect traffic statistics for a time period.

If you do not specify an aggregate interface type, the command clears statistics for all interfaces in the system.

If you specify only an aggregate interface type, the command clears statistics for all aggregate interfaces of the specified type.

The bridge-aggregation or route-aggregation keyword is available only when aggregate interfaces of the corresponding type exist on the device.

Examples

# Clear the statistics about interface Bridge-Aggregation 1.

<Sysname> reset counters interface bridge-aggregation 1

reset lacp statistics

Use reset lacp statistics to clear LACP statistics for the specified link aggregation member ports.

Syntax

reset lacp statistics [ interface interface-list ]

Views

User view

Predefined user roles

network-admin

Parameters

interface interface-list: Specifies a list of link aggregation member ports, in the format interface-type interface-number1 [ to interface-type interface-number2 ]. The value for the interface-number1 argument must be equal to or greater than the value for the interface-number2 argument. If you do not specify any member ports, the command clears LACP statistics for all member ports.

Examples

# Clear LACP statistics for all link aggregation member ports.

<Sysname> reset lacp statistics

Related commands

display link-aggregation member-port

shutdown

Use shutdown to shut down an interface.

Use undo shutdown to bring up an interface.

Syntax

shutdown

undo shutdown

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Layer 3 aggregate subinterface view

Predefined user roles

network-admin

Usage guidelines

Shutting down or bringing up a Layer 3 aggregate interface shuts down or brings up its subinterfaces. Shutting down or bringing up a Layer 3 aggregate subinterface does not affect its main interface.

Examples

# Bring up Layer 2 aggregate interface Bridge-Aggregation 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] undo shutdown