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

mdc-admin

Usage guidelines

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

mdc-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

mdc-admin

mdc-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

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

Port priority: 0

Output queue - Urgent queuing: Size/Length/Discards 0/100/0

Output queue - Protocol queuing: Size/Length/Discards 0/500/0

Output queue - FIFO queuing: Size/Length/Discards 0/75/0

Unknown-speed mode, unknown-duplex mode

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 UP 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.
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.
Output queue - Urgent queuing: Size/Length/Discards	Information about the urgent output queue: · Size—Number of packets in the queue. · Length—Maximum number of packets that the queue can contain. · Discards—Number of dropped packets.
Output queue - Protocol queuing: Size/Length/Discards	Information about the protocol output queue: · Size—Number of packets in the queue. · Length—Maximum number of packets that the queue can contain. · Discards—Number of dropped packets.
Output queue - FIFO queuing: Size/Length/Discards	Information about the FIFO output queue: · Size—Number of packets in the queue. · Length—Maximum number of packets that the queue can contain. · Discards—Number of dropped packets.
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. · Stby—The interface is a backup interface in standby state.
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

mdc-admin

mdc-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 system LACP priority (0x8000 in this sample output) and the system MAC address (0000-FC00-6504 in this sample output).

Related commands

lacp system-priority

display link-aggregation capability

Use display link-aggregation capability to display the link aggregation capability for the device.

Syntax

display link-aggregation capability

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Examples

# Display the link aggregation capability for the device.

<Sysname> display link-aggregation capability

Default link aggregation capability:

Maximum groups: 1024

Maximum Selected ports per group: 16

Current link aggregation capability:

Maximum groups: 1024

Maximum Selected ports per group: 16

Link aggregation capability at the next reboot:

Maximum groups: 1024

Maximum Selected ports per group: 16

Supported link aggregation capability list:

1024*16 512*32 256*64 128*128 64*256

Table 3 Command output

Field	Description
Supported link aggregation capability list	Link aggregation capabilities supported by the device. Each item in the list is in the format of maximum number of aggregation groups*maximum number of Selected ports per aggregation group.

Related commands

link-aggregation capability

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

mdc-admin

mdc-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 the corresponding aggregate interfaces exist on the device.

Examples

# Display the default global link-aggregation load sharing modes (applicable to software versions earlier than Release 2719P01).

<Sysname> display link-aggregation load-sharing mode

Link-Aggregation load-sharing algorithm:

Default

Link-aggregation load-sharing offset:

Default

Link-Aggregation load-sharing seed:

Default

Tunneled traffic load-sharing mode:

Default

Link-aggregation load-sharing mode:

Layer 2 traffic: packet type-based sharing

Layer 3 traffic: packet type-based sharing

# Display the default global link-aggregation load sharing modes (applicable to Release 2719P01 and later).

<Sysname> display link-aggregation load-sharing mode

Link-Aggregation load-sharing algorithm:

Default

Link-aggregation load-sharing offset:

Default

Link-Aggregation load-sharing seed:

Default

Tunneled traffic load-sharing mode:

Default

Link-aggregation load-sharing mode:

Layer 2 traffic: destination-mac address, source-mac address

ethernet-type

Layer 3 traffic: destination-ip address, source-ip address

destination-port, source-port

ip-protocol

# Display the configured global link-aggregation load sharing mode.

<Sysname> display link-aggregation load-sharing mode

Link-Aggregation load-sharing algorithm:

Algorithm 2

Link-aggregation load-sharing offset:

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 default link-aggregation load sharing modes of Layer 2 aggregation group 10 (applicable to software versions earlier than Release 2719P01).

<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 default link-aggregation load sharing modes of Layer 2 aggregation group 10 (applicable to Release 2719P01 and later).

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

Bridge-Aggregation10 load-sharing mode:

Layer 2 traffic: destination-mac address, source-mac address

ethernet-type

Layer 3 traffic: destination-ip address, source-ip address

destination-port, source-port

ip-protocol

# Display the configured link-aggregation load sharing mode of Layer 2 aggregation group 10.

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

Bridge-Aggregation10 load-sharing mode:

destination-mac address, source-mac address

Table 4 Command output

Field	Description
Link-Aggregation load-sharing algorithm	Link aggregation load sharing algorithm. By default, this field displays Default. If you have configured the load sharing algorithm, this field displays the configured algorithm.
Link-aggregation load-sharing offset	(Applicable to Release 2712 and later.) Hash offset to adjust the load sharing hash results on link aggregations. By default, this field displays Default. If you have configured a hash offset, this field displays the configured offset value.
Link-Aggregation load-sharing seed	(Applicable to Release 2712 and later.) Link aggregation load sharing hash seed. By default, this field displays Default. If you have configured the load sharing hash seed, this field displays the configured seed.
Tunneled traffic load-sharing mode	(Applicable to Release 2712 and later.) Load sharing mode for tunneled traffic on aggregate links. By default, this field displays Default. 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	Applicable to software versions earlier than Release 2719P01 and earlier. Default link-aggregation load sharing mode for Layer 2 traffic. In this sample output, the system distributes Layer 2 traffic based on the Ethernet type, and source and destination MAC addresses.
Layer 2 traffic: destination-mac address, source-mac address ethernet-type	Applicable to Release 2719P01 and later. Default link-aggregation load sharing mode for Layer 2 traffic. In this sample output, the system distributes Layer 2 traffic based on the Ethernet type, and source and destination MAC addresses.
Layer 3 traffic: packet type-based sharing	Applicable to software versions earlier than Release 2719P01. Default link-aggregation load sharing mode for Layer 3 traffic. In this sample output, the system distributes Layer 3 traffic based on the source and destination IP addresses, source and destination ports, and protocol number.
Layer 3 traffic: destination-ip address, source-ip address destination-port, source-port ip-protocol	Applicable to Release 2719P01 and later. Default link-aggregation load sharing mode for Layer 3 traffic. In this sample output, the system distributes Layer 3 traffic based on the source and destination IP addresses, source and destination ports, and protocol number.
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 forwarding information about the specified 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

mdc-admin

mdc-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.

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

A parameter specified in the command might not be used for selecting the egress port. The Load sharing parameters field displays the parameters that are used in egress port selection. For example, you can specify both the destination-mac mac-address and destination-ip ip-address options. If only the destination MAC address is used for selecting the egress port, the Load sharing parameters field does not display the destination-ip parameter.

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.

This command takes effect only on per-flow load sharing and automatic load sharing. As a best practice, do not use this command for per-packet load sharing.

Examples

# Display forwarding information about 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 fortygige 1/0/1 destination-mac 0000-fc00-0001 source-mac 0000-fc00-0002 source-ip 10.100.0.2 destination-ip 10.100.0.1

Load sharing mode: destination-mac, source-mac, source-ip, destination-ip

Unspecified parameters are set to 0.

Load-sharing parameters:

Ingress port: FortyGigE1/0/1

Destination MAC: 0000-fc00-0001

Source MAC: 0000-fc00-0002

Destination IP: 10.100.0.1

Source IP: 10.100.0.2

Egress port: FortyGigE1/0/3

Table 5 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. · ip-protocol—Traffic is load shared based on IP protocol types. · ingress-port—Traffic is load shared based on ingress ports.
Load sharing parameters	Parameters that are used in egress port selection.
Egress port	Egress port of the specified traffic flow. If no egress port is found, this field displays N/A.

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

mdc-admin

mdc-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 FortyGigE 1/0/1, which is a member port of a static aggregation group.

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

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

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

G -- Defaulted, H -- Expired

FortyGigE1/0/1:

Aggregate Interface: Bridge-Aggregation1

Port Number: 1

Port Priority: 32768

Oper-Key: 1

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

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

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

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

G -- Defaulted, H -- Expired

FortyGigE1/0/2:

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

FortyGigE1/0/3:

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 6 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 system LACP priority and the 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

mdc-admin

mdc-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 7 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 system LACP priority and the local 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 system LACP priority and the peer 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

mdc-admin

mdc-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 the corresponding aggregate interfaces 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

FGE1/0/1 S 32768 61 2 {ACDEF}

FGE1/0/2 S 32768 62 2 {ACDEF}

FGE1/0/3 S 32768 63 2 {AG}

Remote:

Actor Priority Index Oper-Key SystemID Flag

FGE1/0/1(R) 32768 111 2 0x8000, 000f-e267-57ad {ACDEF}

FGE1/0/2 32768 112 2 0x8000, 000f-e267-57ad {ACDEF}

FGE1/0/3 32768 113 0 0x8000, 0000-0000-0000 {DEF}

# 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

FGE1/0/1(R) S 32768 1

FGE1/0/2 S 32768 1

FGE1/0/3 S 32768 1

Table 8 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	Create mode of the aggregate interface: · Auto—Automatically created. · Manual—Manually created.
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 system LACP priority and the local 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 Flag field is 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

mdc-admin

Parameters

interface-number: Specifies a Layer 2 aggregate interface number. The value range for the interface-number argument is 1 to 4096.

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

mdc-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.

For the S12500X-AF F card series, S12500-X switch series, and S9800 switch series, a Layer 3 aggregate subinterface must process traffic for the VLAN that has the same VLAN ID as its subinterface number. When you reserve VLAN interfaces and plan the Layer 3 aggregate subinterface numbering scheme, make sure the reserved VLAN interface numbers are different from Layer 3 aggregation subinterface numbers. For more information about VLAN interface resource reservation, see VLAN configuration in Layer 2—LAN Switching Configuration Guide.

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 12288 bytes to pass through.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

size: Specifies the maximum length of jumbo frames, in bytes. The value range for this argument is 1536 to 12288.

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 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

mdc-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

mdc-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 FortyGigE 1/0/1.

<Sysname> system-view

[Sysname] interface fortygige 1/0/1

[Sysname-FortyGigE1/0/1] 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

mdc-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 FortyGigE 1/0/1.

<Sysname> system-view

[Sysname] interface fortygige 1/0/1

[Sysname-FortyGigE1/0/1] 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

mdc-admin

Usage guidelines

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.

NOTE:

This command is supported only in Release 2719 and later.

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

mdc-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.

LACPDUs carry the LACP system MAC address configured by using this command. 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.

You can configure the LACP system MAC address globally and in aggregate interface view. The global LACP system MAC address takes effect on all aggregation groups, and an aggregate-interface-specific LACP system MAC address takes precedence over the global LACP system MAC address.

On a DR system, DR interfaces in the same DR group cannot use the same LACP system MAC address.

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

port lacp system-mac

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.

NOTE:

This command is supported only in Release 2719 and later.

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

mdc-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 system LACP priority.

Use undo lacp system-priority to restore the default.

Syntax

lacp system-priority priority

undo lacp system-priority

Default

The system LACP priority is 32768.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

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

Examples

# Set the system LACP priority to 64.

<Sysname> system-view

[Sysname] lacp system-priority 64

Related commands

link-aggregation port-priority

lacp transparent enable

Use lacp transparent enable to enable transparent LACPDU transmission on an interface.

Use undo lacp transparent enable to disable transparent LACPDU transmission on an interface.

Syntax

lacp transparent enable

undo lacp transparent enable

Default

Transparent LACPDU transmission is disabled on an interface.

Views

Layer 2 Ethernet interface view

Layer 3 Ethernet interface view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

To establish a dynamic aggregation between two remote CEs, use transparent LACPDU transmission on the PEs to which the CEs attached.

On the PEs, enable transparent LACPDU transmission on the interfaces that transmit traffic between CEs and PEs and between PEs.

Do not use an interface for link aggregation if you enable transparent LACPDU transmission on that interface. With transparent LACPDU transmission enabled, an interface cannot be selected for aggregation.

Examples

# Enable transparent LACPDU transmission on FortyGigE 1/0/1.

<Sysname> system

[Sysname] interface fortygige 1/0/1

[Sysname-FortyGigE1/0/1] lacp transparent enable

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

mdc-admin

Usage guidelines

This command is available in Release 2712 and later.

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.

Do not use this feature on devices configured with DRNI.

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

mdc-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 in the aggregation group. BFD sessions for link aggregation do not support the echo packet mode or the Demand mode. For more information about BFD, see High Availability Configuration Guide.

As a best practice, do not configure a protocol to collaborate with BFD 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 capability

Use link-aggregation capability to configure the link aggregation capability for the device.

Use undo link-aggregation capability to restore the default.

Syntax

link-aggregation capability max-group max-group-number max-selected-port max-selected-port-number

undo link-aggregation capability

Default

A device can have a maximum of 1024 aggregation groups and an aggregation group can have a maximum of 16 Selected ports.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

max-group max-group-number: Specifies the maximum number of aggregation groups that the device supports. The value for the max-group-number argument can be 64, 128, 256, 512, or 1024.

max-selected-port max-selected-port-number: Specifies the maximum number of Selected ports per aggregation group. The value for the max-selected-port-number argument can be 16, 32, 64, 128, or 256.

Usage guidelines

After you execute this command, save the configuration and reboot the device for the configuration to take effect. Before rebooting the device, make sure you know the possible impact on the network.

This command fails if the number of existing aggregation groups exceeds the configured maximum number.

If you create aggregation groups after executing the link-aggregation capability command and the number of aggregation groups exceeds the configured number, some aggregation groups are deleted at the next reboot.

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.

For link aggregation to operate correctly, set the same link aggregation capability for both ends of an aggregate link.

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

Examples

# Configure the device to support a maximum of 1024 aggregation groups and a maximum of 16 Selected ports per aggregation group.

<Sysname> system-view

[Sysname] link-aggregation capability max-group 1024 max-selected-port 16

The configuration will take effect at the next reboot. Continue? [Y/N]:y

Please save the configuration, and reboot the device.

Related commands

display link-aggregation capability

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

Algorithm 4 is used.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

algorithm algorithm-number: Specifies an algorithm by its number. The value range for the algorithm-number argument is 1 to 11.

Usage guidelines

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

If the device fails to load share traffic flows across all Selected ports, you can specify algorithm 1 to 13 in sequence until the problem is solved.

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 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 | ip-protocol | source-ip | source-mac | source-port } *

undo link-aggregation global load-sharing mode

Default

The default settings are as follows:

· Layer 2 traffic is distributed based on the Ethernet type, source and destination MAC addresses, and source port.

· IPv4 or IPv6 traffic is distributed based on the source and destination IP addresses, source and destination ports, and protocol number.

· MPLS traffic with three or fewer layers of labels is distributed based on the source and destination IP addresses, source and destination ports, and protocol number. MPLS traffic with more than three layers of labels is distributed based on the source and destination IP addresses.

Views

System view

Predefined user roles

network-admin

mdc-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.

ip-protocol: Distributes traffic based on IP protocol types.

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.

The device supports any combination of the keywords in the link-aggregation global load-sharing mode command.

If you configure both link aggregation load sharing and per-flow load sharing over equal-cost routes, the latest configuration takes effect. Per-flow load sharing over equal-cost routes identifies a flow based on five tuples (source IP address, destination IP address, source port number, destination port number, and IP protocol number). For information about configuring per-flow load sharing over equal-cost routes, see Layer 3—IP Services Configuration Guide.

If you set the global load-sharing mode to source MAC address, the setting takes effect only on Layer 2 aggregation groups. A Layer 3 aggregation group forwards traffic by using one of its Selected ports rather than load shares traffic. When the Selected port fails, traffic is switched to another Selected port in the aggregation group.

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

The default hash offset for load sharing on link aggregations is 0.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

offset-value: Specifies a hash offset in the range of 0 to 15.

Usage guidelines

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.

This command is available in Release 2712 and later.

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

The default link aggregation load sharing hash seed is 1.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

seed seed-number: Specifies a seed in the range of 0 to FFFF.

Usage guidelines

This command is available in Release 2712 and later.

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

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

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 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 { all | inner | outer }

undo link-aggregation global load-sharing tunnel

Default

The default settings are as follows:

· On the S12500X-AF F card series, S12500-X switch series, and S9800 switch series, tunneled traffic is distributed based on the inner IP header on aggregate links.

· On the S12500X-AF H card series, tunneled traffic is distributed based on the outer IP header on aggregate links.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

all: Distributes tunneled traffic based on the inner IP header and outer IP header.

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

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

Usage guidelines

This command is available in Release 2712 and later.

This command sets the criterion used by aggregation groups to load share tunneled traffic.

The outer mode does not take effect on the tunneled traffic to be forwarded with the tunnel header removed.

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 group load-sharing mode local-first

Use link-aggregation group load-sharing mode local-first to enable local-first load sharing on an aggregate interface.

Use undo link-aggregation group load-sharing mode local-first to disable local-first load sharing on an aggregate interface.

Syntax

link-aggregation group load-sharing mode local-first

undo link-aggregation group load-sharing mode local-first

Default

Local-first load sharing is not configured on aggregate interfaces. An aggregate interface uses the global local-first load-sharing setting.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

This command is available only in IRF mode.

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.

You can configure local-first load sharing globally or on a per-interface basis. An aggregate interface preferentially uses the interface-specific setting. If no interface-specific setting is available, the aggregate interface uses the global setting.

Examples

# Disable local-first load sharing on Layer 2 aggregate interface Bridge-Aggregation 1.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] undo link-aggregation group load-sharing mode local-first

link-aggregation ignore speed

Use link-aggregation ignore speed to configure an aggregation group to ignore port speed in setting the aggregation states of member ports.

Use undo link-aggregation ignore speed to restore the default.

Syntax

link-aggregation ignore speed

undo link-aggregation ignore speed

Default

An aggregation group does not ignore port speed in setting the aggregation states of member ports.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

This command allows ports at a different speed than the reference port to become Selected by ignoring the port speed during operational key calculation.

You must configure the same port speed ignoring setting at the two ends of a static configuration to ensure that the peer ports are placed in the same aggregation state. This requirement does not apply to a dynamic aggregation, on which the two ends negotiate the aggregation state of the peer ports automatically.

Examples

# Configure Layer 2 aggregation group 1 to ignore port speed in setting the aggregation states of member ports.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-aggregation ignore speed

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

mdc-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.

With this command configured, a Layer 2 aggregate interface ignores the permitted VLAN and VLAN tagging mode configuration of the specified VLANs when choosing Selected ports.

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

mdc-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 unknown unicast 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 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 flexible

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

mdc-admin

Parameters

flexible: Load shares traffic on a per-packet basis.

Examples

# Configure Layer 2 aggregation group 1 to load share packets based on a per-packet basis.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-aggregation load-sharing mode flexible

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

mdc-admin

Usage guidelines

This command is available only in IRF mode.

Local-first load sharing takes effect only on known unicast traffic.

If you disable local-first load sharing, packets of an aggregate interface are load shared among all 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

mdc-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 FortyGigE 1/0/1 as the management port of its aggregation group.

<Sysname> system-view

[Sysname] interface fortygige 1/0/1

[Sysname-FortyGigE1/0/1] 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

mdc-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.

· MPLS L2VPN. For more information, see MPLS 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

mdc-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

mdc-admin

Usage guidelines

Aggregation mode change might cause Selected member ports to become Unselected. When you change the aggregation mode, make sure you understand the impact of the change on services.

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

mdc-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 FortyGigE 1/0/1.

<Sysname> system-view

[Sysname] interface fortygige 1/0/1

[Sysname-FortyGigE1/0/1] link-aggregation port-priority 64

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

<Sysname> system-view

[Sysname] interface fortygige 1/0/2

[Sysname-FortyGigE1/0/2] 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 16.

Views

Layer 2 aggregate interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

mdc-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 256.

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.

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

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

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

mdc-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 256.

Usage guidelines

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

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

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

mac-address

Use mac-address to set the MAC address for 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

mdc-admin

Parameters

mac-address: Specifies the 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.

Make sure the MAC address you assign to an aggregate interface meets the following requirements:

· The MAC address must have the same value as the base MAC address in the 36 most significant bits.

· The MAC address must not be lower than the base MAC address plus n (decimal).

¡ For the S12500X-AF switch series, n is 256.

¡ For the S12500-X and S9800 switch series, n is 128.

For more information about the base MAC address, see Layer 2—LAN Switching Configuration Guide.

Examples

# Set the MAC address to 0001-0001-0002 for Layer 3 aggregate 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 for a Layer 3 aggregate interface or subinterface.

Use undo mtu to restore the default.

Syntax

mtu size

undo mtu

Default

The MTU for 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

mdc-admin

Parameters

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

Examples

# Set the MTU to 1430 bytes for Layer 3 aggregate interface Route-Aggregation 1.

<Sysname> system-view

[Sysname] interface route-aggregation 1

[Sysname-Route-Aggregation1] mtu 1430

Related commands

display interface

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

mdc-admin

Parameters

group-id: Specifies an aggregation group by its aggregate interface number. The value range for the number argument is 1 to 4094.

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.

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.

Examples

# Assign Layer 2 Ethernet interface FortyGigE 1/0/1 to Layer 2 aggregation group 1.

<Sysname> system-view

[Sysname] interface fortygige 1/0/1

[Sysname-FortyGigE1/0/1] port link-aggregation group 1

# Assign Layer 3 Ethernet interface FortyGigE 1/0/2 to Layer 3 aggregation group 2.

<Sysname> system-view

[Sysname] interface fortygige 1/0/2

[Sysname-FortyGigE1/0/2] 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.

NOTE:

This command is supported only in Release 2719 and later.

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

mdc-admin

Parameters

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

Usage guidelines

Use S-MLAG only to establish aggregate links with servers.

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

mdc-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 the corresponding aggregate interfaces exist on the device.

Examples

# Clear statistics for Layer 2 aggregate 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

mdc-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

mdc-admin

Usage guidelines

CAUTION:

The shutdown command will disconnect all links established on an interface. Make sure you are fully aware of the impacts of this command when you use it on a live network.

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

03-Layer 2-LAN Switching Command Reference

display link-aggregation verbose

interface bridge-aggregation

interface route-aggregation

link-aggregation port-priority

port s-mlag group

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