This feature snoops ARP packets to populate the ARP flood suppression table with local and remote MAC addresses. If an ARP request has a matching entry, the VTEP replies to the request on behalf of the VM. If no match is found, the VTEP floods the request to both local and remote sites.

Examples

# Enable ARP flood suppression for VSI vsi1.

<Sysname> system-view

[Sysname] vsi vsi1

[Sysname-vsi-vsi1] arp suppression enable

Related commands

display arp suppression vsi

reset arp suppression vsi

arp suppression mode

Use arp suppression mode to set the ARP flood suppression mode.

Use undo arp suppression mode to restore the default.

Syntax

arp suppression mode { proxy-reply | unicast-forward } [ mismatch-discard ]

undo arp suppression mode

Default

If ARP flood suppression is enabled, the default ARP flood suppression mode is proxy reply. In proxy reply mode, the device broadcasts the ARP requests that are not targeted at the device and do not match any ARP flood suppression entries.

Views

VSI view

Predefined user roles

network-admin

Parameters

proxy-reply: Specifies proxy reply mode. If an ARP request is not targeted at the device and matches an ARP flood suppression entry, the device replies to the ARP request on behalf of the target IP address. The ARP reply carries the following information:

· Sender IP address—Target IP address in the ARP request.

· Sender MAC address—MAC address in the matching ARP flood suppression entry.

· Source MAC address—MAC address in the matching ARP flood suppression entry.

unicast-forward: Specifies unicast forwarding mode. If an ARP request is not targeted at the device and matches an ARP flood suppression entry, the device acts as follows:

1. Replaces the target MAC address and destination MAC address in the ARP request with the MAC address in the entry.

2. Unicasts the ARP request.

mismatch-discard: Specifies mismatch discarding mode. In this mode, the device discards an ARP request that is not targeted at the device and does not match any ARP flood suppression entry. If you do not specify this keyword, the device will broadcast such an ARP request.

Usage guidelines

The device does not forward ARP requests in proxy reply mode, which decreases system resource consumption. Unicast forwarding mode reduces the ARP entry learning errors caused by the delay in refreshing ARP flood suppression entries at the expense of high system resource usage.

Examples

# Enable ARP flood suppression and set its mode to unicast forwarding on VSI vsi1.

<Sysname> system-view

[Sysname] vsi vsi1

[Sysname-vsi-vsi1] arp suppression enable

[Sysname-vsi-vsi1] arp suppression mode unicast-forward

Related commands

arp suppression enable

description

Use description to configure a description for a VSI.

Use undo description to restore the default.

Syntax

description text

undo description

Default

A VSI does not have a description.

Views

VSI view

Predefined user roles

network-admin

Parameters

text: Specifies a description, a case-sensitive string of 1 to 80 characters.

Examples

# Configure a description for VSI vpn1.

<Sysname> system-view

[Sysname] vsi vpn1

[Sysname-vsi-vpn1] description vsi for vpn1

Related commands

display l2vpn vsi

display arp suppression vsi

Use display arp suppression vsi to display ARP flood suppression entries.

Syntax

display arp suppression vsi [ name vsi-name ] [ slot slot-number ] [ count ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

name vsi-name: Specifies a VSI by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VSI, this command displays entries for all VSIs.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays entries on the active MPU.

count: Displays the number of ARP flood suppression entries that match the command.

Examples

# Display ARP flood suppression entries.

<Sysname> display arp suppression vsi

IP address MAC address VSI name Link ID Aging(min)

1.1.1.2 000f-e201-0101 vsi1 0x70000 14

1.1.1.3 000f-e201-0202 vsi1 0x80000 18

1.1.1.4 000f-e201-0203 vsi2 0x90000 10

# Display the number of ARP flood suppression entries.

<Sysname> display arp suppression vsi count

Total entries: 3

Table 1 Command output

Field	Description
Link ID	Link ID that uniquely identifies an AC or a VXLAN tunnel on a VSI.
Aging	Remaining lifetime (in minutes) of the ARP flood suppression entry. When the timer expires, the entry is deleted.

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Related commands

arp suppression enable

reset arp suppression vsi

display ipv6 nd suppression vsi

Use display ipv6 nd suppression vsi to display ND flood suppression entries.

Syntax

display ipv6 nd suppression vsi [ name vsi-name ] [ slot slot-number ] [ count ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

name vsi-name: Specifies a VSI by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VSI, this command displays entries for all VSIs.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays entries on the active MPU.

count: Displays the number of ND flood suppression entries that match the command.

Examples

# Display ND flood suppression entries.

<Sysname> display ipv6 nd suppression vsi

IPv6 address MAC address VSI name Link ID Aging (min)

1000::2 000f-e201-0101 vsi1 0x70000 5

1000::3 000f-e201-0202 vsi1 0x80000 5

1000::4 000f-e201-0203 vsi2 0x90000 5

# Display the number of ND flood suppression entries.

<Sysname> display ipv6 nd suppression vsi count

Total entries: 3

Table 2 Command output

Field	Description
Link ID	Link ID that uniquely identifies an AC or a VXLAN tunnel on a VSI.
Aging (min)	Remaining lifetime (in minutes) of the ND flood suppression entry. When the timer expires, the entry is deleted.

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Related commands

ipv6 nd suppression enable

reset ipv6 nd suppression vsi

display l2vpn interface

Use display l2vpn interface to display L2VPN information for Layer 3 interfaces that are mapped to VSIs.

Syntax

display l2vpn interface [ vsi vsi-name | interface-type interface-number ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vsi vsi-name: Specifies a VSI name, a case-sensitive string of 1 to 31 characters.

interface-type interface-number: Specifies an interface by its type and number.

verbose: Displays detailed information about Layer 3 interfaces. If you do not specify this keyword, the command displays brief information about Layer 3 interfaces.

Usage guidelines

If you do not specify any parameters, this command displays brief L2VPN information for all Layer 3 interfaces that are mapped to VSIs.

Examples

# Display brief L2VPN information for all Layer 3 interfaces that are mapped to VSIs.

<Sysname> display l2vpn interface

Total number of interfaces: 1, 1 up, 0 down

Interface Owner Link ID State Type

GE1/0/1 1 0 Up VSI

Table 3 Command output

Field	Description
Interface	Layer 3 interface name.
Owner	VSI name.
Link ID	The interface's link ID on the VSI.
State	Physical state of the interface: · Up—The interface is physically up. · Down—The interface is physically down.
Type	L2VPN type of the interface. This field displays VSI for the VXLAN feature.

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# Display detailed L2VPN information for all Layer 3 interfaces that are mapped to VSIs.

<Sysname> display l2vpn interface verbose

Interface: GE1/0/1

Owner : vsi1

Link ID : 0

State : Up

Type : VSI

Statistics : Enabled

Input Statistics:

Octets :994496

Packets :15539

Output Statistics:

Octets :0

Packets :0

Interface: GE1/0/2

Owner : vsi2

Link ID : 0

State : Down

Type : VSI

Statistics : Enabled

Input Statistics:

Octets :0

Packets :0

Output Statistics:

Octets :0

Packets :0

Table 4 Command output

Field	Description
Interface	Layer 3 interface name.
Owner	VSI name.
Link ID	The interface's link ID on the VSI.
State	Physical state of the interface: · Up—The interface is physically up. · Down—The interface is physically down.
Type	L2VPN type of the interface. This field displays VSI for the VXLAN feature.
Statistics	Packet statistics state: · Enabled—The packet statistics feature is enabled for the interface. · Disabled—The packet statistics feature is disabled for the interface.
Input Statistics	Incoming traffic statistics: · Octets—Number of incoming bytes. · Packets—Number of incoming packets.
Output Statistics	Outgoing traffic statistics: · Octets—Number of outgoing bytes. · Packets—Number of outgoing packets.

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display l2vpn mac-address

Use display l2vpn mac-address to display MAC address entries for VSIs.

Syntax

display l2vpn mac-address [ vsi vsi-name ] [ dynamic ] [ count | verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vsi vsi-name: Specifies a VSI name, a case-sensitive string of 1 to 31 characters. If you do not specify a VSI, this command displays MAC address entries for all VSIs.

dynamic: Specifies dynamic MAC address entries learned in the data plane. If you do not specify this keyword, the command displays all MAC address entries, including:

· Dynamic remote- and local-MAC entries.

· Remote-MAC entries advertised through BGP EVPN.

· Manually added static remote- and local-MAC entries.

· Remote-MAC entries issued through OpenFlow.

count: Displays the number of MAC address entries.

verbose: Displays detailed information about MAC address entries.

Usage guidelines

If you do not specify the count or verbose keyword, this command displays brief information about MAC address entries.

Examples

# Display brief information about MAC address entries for all VSIs.

<Sysname> display l2vpn mac-address

MAC Address State VSI Name Link ID/Name Aging

0000-0000-000b Static vpn1 Tunnel10 NotAging

0000-0000-000c Dynamic vpn1 Tunnel60 Aging

0000-0000-000d Dynamic vpn1 Tunnel99 Aging

--- 3 mac address(es) found ---

# Display the total number of MAC address entries in all VSIs.

<Sysname> display l2vpn mac-address count

3 mac address(es) found

Table 5 Command output

Field	Description
State	Entry state: · Dynamic—Local- or remote-MAC entry dynamically learned in the data plane. · Static—Static local- and remote-MAC entry. · EVPN—Remote-MAC entry advertised through BGP EVPN. · OpenFlow—Remote-MAC entry issued by a remote controller through OpenFlow.
Link ID/Name	For a local MAC address, this field displays the interface name if the AC is a Layer 3 interface. If the AC is an Ethernet service instance, this field displays the name of the interface that hosts the Ethernet service instance for the MAC address. For a remote MAC address, this field displays the tunnel interface name.
Aging	Entry aging state: · Aging. · NotAging.

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# Display detailed information about MAC address entries for all VSIs.

<Sysname> display l2vpn mac-address verbose

MAC Address : 0000-0000-000b

VSI Name : vpn1

VXLAN ID : 123

Interface : GE1/0/1

Link ID : 1

State : Dynamic

Aging : Aging

Table 6 Command output

Field	Description
Interface	For a local MAC address, this field displays the interface name if the AC is a Layer 3 interface. If the AC is an Ethernet service instance, this field displays the name of the interface that hosts the Ethernet service instance for the MAC address. For a remote MAC address, this field displays the tunnel interface name.
Link ID	Link ID that uniquely identifies an AC or a VXLAN tunnel on a VSI.
State	Entry state: · Dynamic—Local- or remote-MAC entry dynamically learned in the data plane. · Static—Static local- or remote-MAC entry. · EVPN—Remote-MAC entry advertised through BGP EVPN. · OpenFlow—Remote-MAC entry issued by a remote controller through OpenFlow.
Aging	Entry aging state: · Aging. · NotAging.

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Related commands

reset l2vpn mac-address

display l2vpn mac-address mac-move

Use display l2vpn mac-address mac-move to display MAC move records for VSIs.

Syntax

display l2vpn mac-address mac-move [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays MAC move records on the active MPU.

Usage guidelines

When a MAC address frequently moves between two interfaces, Layer 2 loops might occur in the network. To discover and locate loops, you can view the MAC address move records.

This command displays the MAC move events that have occurred on VSIs since startup of the device. The MAC move records with the same MAC address, VSI name, source port, and current port are considered to be one record.

A card can generate a maximum of 200 MAC address move records.

Examples

# Display MAC move records for all VSIs.

<Sysname> display l2vpn mac-address mac-move

MAC address : 0000-4900-03e7 VSI name : 3

Current port: GE1/0/1 Source port: GE1/0/2

Last time : 2019-02-19 20:44:15 Move count : 1

MAC address : 0000-4900-03e8 VSI name : 3

Current port: GE1/0/1 Source port: GE1/0/3

Last time : 2019-02-19 20:44:16 Move count : 1

--- 2 MAC address moving records found ---

Table 7 Command output

Field	Description
Current port	Interface to which the MAC address was moved.
Source port	Interface from which the MAC address was moved.
Last time	Last time when the MAC address was moved.
Move count	Number of times that the MAC address has moved.

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display l2vpn vsi

Use display l2vpn vsi to display information about VSIs.

Syntax

display l2vpn vsi [ name vsi-name | evpn-vxlan | vxlan ] [ count | verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

name vsi-name: Specifies a VSI by its name, a case-sensitive string of 1 to 31 characters.

evpn-vxlan: Specifies VSIs of EVPN VXLAN.

vxlan: Specifies VSIs of VXLAN.

count: Displays VSI state statistics.

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

Usage guidelines

If you do not specify a VSI or network type, this command displays information about all VSIs.

Examples

# Display brief information about all VSIs.

<Sysname> display l2vpn vsi

Total number of VSIs: 2, 1 up, 1 down, 0 admin down

VSI Name VSI Index MTU State

vpls1 0 1500 Up

vpls2 1 1500 Down

# Display state statistics about all VSIs.

<Sysname> display l2vpn vsi count

Total number of VSIs: 1, 1 up, 0 down, 0 admin down

Table 8 Command output

Field	Description
State	VSI state: · Up—The VSI is up. · Down—The VSI is down. · Admin down—The VSI has been manually shut down by using the shutdown command.

Field

Description

State

VSI state:

· Up—The VSI is up.

· Down—The VSI is down.

· Admin down—The VSI has been manually shut down by using the shutdown command.

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# Display detailed information about all VSIs of EVPN VXLAN.

<Sysname> display l2vpn vsi evpn-vxlan verbose

VSI Name: vpna

VSI Index : 0

VSI Description : vsi for vxlan10

VSI State : Up

MTU : -

Diffserv Mode : -

Bandwidth : -

Broadcast Restrain : -

Multicast Restrain : -

Unknown Unicast Restrain: -

MAC Learning : -

MAC Table Limit : -

MAC Learning rate : -

Drop Unknown : -

PW Redundancy Mode : Independent

DSCP : -

Service Class : -

Flooding : Enabled

ESI : 0000.0000.0000.0000.0000

Redundancy Mode : All-active

Statistics : Enabled

Input statistics :

Octets : 0

Packets : 0

Errors : 0

Discards : 0

Output statistics:

Octets : 0

Packets : 0

Errors : 0

Discards : 0

Gateway Interface : VSI-interface 100

VXLAN ID : 10

EVPN Encapsulation : VXLAN

Tunnels:

Tunnel Name Link ID State Type Flood proxy

Tunnel1 0x5000001 Up Manual Disabled

Tunnel2 0x5000002 Up Manual Disabled

ACs:

AC Link ID State Type

GE1/0/1 0x0 Up Manual

Statistics: Disabled

# Display detailed information about all VSIs of EVPN VPLS.

<Sysname> display l2vpn vsi evpn-vpls verbose

VSI Name: 1

VSI Index : 0

VSI State : Up

MTU : 1500

Diffserv Mode : -

Bandwidth : -

Broadcast Restrain : 5120 kbps

Multicast Restrain : 5120 kbps

Unknown Unicast Restrain: 5120 kbps

MAC Learning : Enabled

MAC Table Limit : Unlimited

MAC Learning rate : Unlimited

Drop Unknown : Disabled

PW Redundancy Mode : Slave

DSCP : -

Service Class : -

Flooding : Enabled

ESI : 0000.0000.0000.0000.0000

Redundancy Mode : All-active

Statistics : Disabled

EVPN Encapsulation : MPLS

EVPN MPLS labels:

MPLS label : 775115

IMET MPLS label : 775114

EVPN PWs:

Peer Remote Service ID Link ID State Flag

1.1.1.1 - 8 Up Main

Create time: 2020-07-22 05:49:28

Last time status changed: 2020-07-22 05:49:28

Last time PW went down: 2020-07-22 05:49:28

3.3.3.3 - 9 Up Main

Create time: 2020-07-22 05:49:29

Last time status changed: 2020-07-22 05:49:29

Last time PW went down: 2020-07-22 05:49:29

ACs:

AC Link ID State Type

GE1/0/1 0x0 Up Manual

Statistics: Disabled

Table 9 Command output

Field	Description
VSI Description	Description of the VSI. If the VSI does not have a description, the command does not display this field.
VSI State	VSI state: · Up—The VSI is up. · Down—The VSI is down. · Administratively down—The VSI has been manually shut down by using the shutdown command.
MTU	MTU on the VSI.
Diffserv Mode	DiffServ mode.
Bandwidth	Bandwidth limit in kbps. If no bandwidth limit is set for the VSI, Unlimited is displayed.
Broadcast Restrain	Broadcast restraint bandwidth (in kbps). If the broadcast restraint bandwidth is not set, Unlimited is displayed.
Multicast Restrain	Multicast restraint bandwidth (in kbps). If the multicast restraint bandwidth is not set, Unlimited is displayed.
Unknown Unicast Restrain	Unknown unicast restraint bandwidth (in kbps). If the unknown unicast restraint bandwidth is not set, Unlimited is displayed.
MAC Learning	State of the MAC learning feature.
MAC Table Limit	Maximum number of MAC address entries on the VSI.
MAC Learning rate	MAC address entry learning rate of the VSI.
Drop Unknown	Action on source MAC-unknown frames received after the maximum number of MAC entries is reached.
PW Redundancy Mode	PW redundancy operation mode: · Slave—Master/slave mode and the local PE operates as the slave node. · Master—Master/slave mode and the local PE operates as the master node. · Independent—Independent mode.
DSCP	DSCP value of outgoing VXLAN packets.
Service Class	Service class value of outgoing VXLAN packets.
Flooding	State of the VSI's flooding feature: · Enabled—Flooding is enabled on the VSI. · Disabled—Flooding is disabled on the VSI.
ESI	ESI assigned to the VSI.
Redundancy Mode	ES redundancy mode for the VSI: · A—All-active mode. · S—Single-active mode.
Statistics	Packet statistics state: · Enabled—The packet statistics feature is enabled for the VSI. · Disabled—The packet statistics feature is disabled for the VSI.
Input statistics	Incoming traffic statistics: · Octets—Number of incoming bytes. · Packets—Number of incoming packets. · Errors—Number of error packets. · Discards—Number of discarded packets.
Output statistics	Outgoing traffic statistics: · Octets—Number of outgoing bytes. · Packets—Number of outgoing packets. · Errors—Number of error packets. · Discards—Number of discarded packets.
Input Rate	Incoming traffic rate for the VSI, in Bps and pps.
Output Rate	Outgoing traffic rate for the VSI, in Bps and pps.
Gateway Interface	VSI interface name.
EVPN Encapsulation	EVPN encapsulation type: · VXLAN. · MPLS.
EVPN MPLS Labels	MPLS labels for the VSI.
MPLS label	MPLS label in MAC/IP advertisement routes.
IMET MPLS label	MPLS label in IMET routes.
Peer	IP address of the remote PE.
Link ID	Link ID of the EVPN PW in the VSI.
State	State of the EVPN PW: · Up. · Down.
Flag	PW attribute flag.
Create time	Time when the EVPN PW was created.
Last time status changed	Time when the most recent EVPN PW state change occurred.
State	Tunnel state: · Up—The tunnel is operating correctly. · Down—The tunnel interface is down.
Type	Tunnel assignment method: · Auto—The tunnel was automatically assigned to the VXLAN: ¡ For an EVPN network, VXLAN tunnels are automatically assigned to VXLANs. ¡ For a multicast-mode VXLAN, the tunnel (MTunnel) was automatically created and assigned to the VXLAN to transmit flood traffic. · Manual—The tunnel was manually assigned to the VXLAN.
Flood proxy	This field is not supported in the current software version. Flood proxy state.
Private-VSI type	Private VSI type: · Community—A secondary VSI whose ACs have Layer 2 connectivity to one another. · Isolated—A secondary VSI whose ACs are isolated at Layer 2. · Primary.
Associated secondary VSIs	Secondary VSIs associated with the VSI.
Associated primary VSI	Primary VSI associated with the VSI.
ACs	ACs that are bound to the VSI.
Link ID	AC's link ID on the VSI.
State	AC state: · Up. · Down.
Type	Type and traffic match mode of the Ethernet service instance: · Dynamic (M-LAG)—Dynamic Ethernet service instance created on the peer link, in VLAN-based traffic match mode. · Dynamic (MAC-based)—Dynamic Ethernet service instance in MAC-based traffic match mode. · Dynamic (VLAN-based)—Dynamic Ethernet service instance in VLAN-based traffic match mode. · Manual—Static Ethernet service instance in VLAN-based traffic match mode.
Statistics	State of AC traffic statistics: · Enabled. · Disabled.

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display vxlan tunnel

Use display vxlan tunnel to display VXLAN tunnel information for VXLANs.

Syntax

display vxlan tunnel [ vxlan-id vxlan-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vxlan-id: Specifies a VXLAN ID in the range of 0 to 16777215. If you do not specify a VXLAN, this command displays VXLAN tunnel information for all VXLANs.

Examples

# Display VXLAN tunnel information for all VXLANs.

<Sysname> display vxlan tunnel

Total number of VXLANs: 1

VXLAN ID: 10, VSI name: vpna, Total tunnels: 2 (2 up, 0 down, 0 defect, 0 blocked)

Tunnel name Link ID State Type Flood proxy

Tunnel1 0x5000001 Up Manual Disabled

Tunnel2 0x5000002 Up Manual Disabled

# Display VXLAN tunnel information for VXLAN 10.

<Sysname> display vxlan tunnel vxlan-id 10

VXLAN ID: 10, VSI name: vpna, Total tunnels: 2 (2 up, 0 down, 0 defect, 0 blocked)

Tunnel name Link ID State Type Flood proxy

Tunnel1 0x5000001 Up Manual Disabled

Tunnel2 0x5000002 Up Manual Disabled

Table 10 Command output

Field	Description
Link ID	Tunnel's link ID in the VXLAN.
State	Tunnel state: · Up—The tunnel is operating correctly. · Down—The tunnel interface is down.
Type	Tunnel assignment method: · Auto—The tunnel was automatically assigned to the VXLAN: ¡ For an EVPN network, VXLAN tunnels are automatically assigned to VXLANs. ¡ For a multicast-mode VXLAN, the tunnel (MTunnel) was automatically created and assigned to the VXLAN to transmit flood traffic. · Manual—The tunnel was manually assigned to the VXLAN.
Flood proxy	This field is not supported in the current software version. Flood proxy state.

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Related commands

tunnel

vxlan

flooding disable (VSI view)

Use flooding disable to disable flooding for a VSI.

Use undo flooding disable to enable flooding for a VSI.

Syntax

flooding disable { all | { broadcast | unknown-multicast | unknown-unicast } * } [ all-direction ]

undo flooding disable

Default

Flooding is enabled for a VSI.

Views

VSI view

Predefined user roles

network-admin

Parameters

all: Specifies broadcast, unknown unicast, and unknown multicast traffic.

broadcast: Specifies broadcast traffic.

unknown-multicast: Specifies unknown multicast traffic.

unknown-unicast: Specifies unknown unicast traffic.

all-direction: Disables flooding traffic received from an AC, VXLAN tunnel interface, or PW to any other ACs and VXLAN tunnel interfaces or PWs of the same VSI. If you do not specify this keyword, the command only disables flooding traffic received from ACs to VXLAN tunnel interfaces or PWs of the VSI.

Usage guidelines

By default, the device floods broadcast, unknown unicast, and unknown multicast frames received from the local site to the following interfaces in the frame's VXLAN:

· All site-facing interfaces except for the incoming interface.

· All VXLAN tunnel interfaces.

When receiving broadcast, unknown unicast, and unknown multicast frames on VXLAN tunnel interfaces, the device floods the frames to all site-facing interfaces in the frames' VXLAN.

To confine a kind of flood traffic, use this command to disable flooding for that kind of flood traffic on the VSI bound to the VXLAN.

You cannot specify the unknown-multicast or unknown-unicast keyword alone. If you specify one of the keywords, you must also specify the other.

Examples

# Disable flooding of local broadcast traffic to remote sites for VSI vsi1.

<Sysname> system-view

[Sysname] vsi vsi1

[Sysname-vsi-vsi1] flooding disable broadcast

igmp host enable

Use igmp host enable to enable the IGMP host feature on an interface.

Use undo igmp host enable to disable the IGMP host feature on an interface.

Syntax

igmp host enable

undo igmp host enable

Default

The IGMP host feature is disabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

You must configure an interface as an IGMP host if its IP address is the source IP address of multicast VXLAN packets. The IGMP host feature enables the interface to send IGMP reports in response to IGMP queries before it can receive traffic from a multicast group.

For this command to take effect, you must use the multicast routing command to enable IP multicast routing.

Examples

# Enable IP multicast routing, and then enable the IGMP host feature on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] multicast routing

[Sysname-mrib] quit

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] igmp host enable

Related commands

display igmp host group

group

multicast routing (IP Multicast Command Reference)

ipv6 nd suppression enable

Use ipv6 nd suppression enable to enable ND flood suppression.

Use undo ipv6 nd suppression enable to disable ND flood suppression.

Syntax

ipv6 nd suppression enable [ no-broadcast ]

undo ipv6 nd suppression enable

Default

ND flood suppression is disabled.

Views

VSI view

Predefined user roles

network-admin

Parameters

no-broadcast: Disables the device from flooding the ND requests that do not match any ND flood suppression entry.

Usage guidelines

ND flood suppression reduces ND request multicasts by enabling the VTEP to reply to ND requests on behalf of user terminals.

This feature snoops ND packets to populate the ND flood suppression table with local and remote MAC addresses. If an ND request has a matching entry, the VTEP replies to the request on behalf of the user terminal. If no match is found, the VTEP floods the request to both local and remote sites.

Examples

# Enable ND flood suppression for VSI vsi1.

<Sysname> system-view

[Sysname] vsi vsi1

[Sysname-vsi-vsi1] ipv6 nd suppression enable

Related commands

display ipv6 nd suppression vsi

reset ipv6 nd suppression vsi

ipv6 nd suppression mode

Use ipv6 nd suppression mode to set the ND flood suppression mode.

Use undo ipv6 nd suppression mode to restore the default.

Syntax

ipv6 nd suppression mode { proxy-reply | unicast-forward } [ mismatch-discard ]

undo ipv6 nd suppression mode

Default

If ND flood suppression is enabled, the default ND flood suppression mode is proxy reply. In proxy reply mode, the device broadcasts the NS packets that are not targeted at the device and do not match any ND flood suppression entries.

Views

VSI view

Predefined user roles

network-admin

Parameters

proxy-reply: Specifies proxy reply mode. If an NS packet is not targeted at the device and matches an ND flood suppression entry, the device replies to the NS packet on behalf of the target IP address. The replied NA packet carries the following information:

· Sender IP address—Target IP address in the NS packet.

· Source MAC address—MAC address in the matching ND flood suppression entry.

unicast-forward: Specifies unicast forwarding mode. If an NS packet is not targeted at the device and matches an ND flood suppression entry, the device acts as follows:

1. Replaces the destination MAC address in the NS packet with the MAC address in the entry.

2. Unicasts the NS packet.

mismatch-discard: Specifies mismatch discarding mode. In this mode, the device discards an NS packet that is not targeted at the device and does not match any ND flood suppression entry. If you do not specify this keyword, the device will broadcast such an NS packet.

Usage guidelines

The device does not forward NS packets in proxy reply mode, which decreases system resource consumption. Unicast forwarding mode reduces the ND entry learning errors caused by the delay in refreshing ND flood suppression entries at the expense of high system resource usage.

Examples

# Enable ND flood suppression and set its mode to unicast forwarding on VSI vsi1.

<Sysname> system-view

[Sysname] vsi vsi1

[Sysname-vsi-vsi1] ipv6 nd suppression enable

[Sysname-vsi-vsi1] nd suppression mode unicast-forward

Related commands

ipv6 nd suppression enable

l2vpn enable

Use l2vpn enable to enable L2VPN.

Use undo l2vpn enable to disable L2VPN.

Syntax

l2vpn enable

undo l2vpn enable

Default

L2VPN is disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

You must enable L2VPN before you can configure L2VPN settings.

Examples

# Enable L2VPN.

<Sysname> system-view

[Sysname] l2vpn enable

l2vpn statistics interval

Use l2vpn statistics interval to set the L2VPN statistics collection interval.

Use undo l2vpn statistics interval to restore the default.

Syntax

l2vpn statistics interval interval

undo l2vpn statistics interval

Default

The L2VPN statistics collection interval is 15 minutes.

Views

System view

Predefined user roles

network-admin

Parameters

interval: Sets the L2VPN statistics collection interval in seconds, in the range of 5 to 65535.

Examples

# Set the L2VPN statistics collection interval to 30 seconds.

<Sysname> system-view

[Sysname] l2vpn statistics interval 30

mac-address static vsi

Use mac-address static vsi to add a static MAC address entry for a VXLAN VSI.

Use undo mac-address static vsi to remove a static MAC address entry for a VXLAN VSI.

Syntax

mac-address static mac-address interface tunnel tunnel-number vsi vsi-name

undo mac-address static [ mac-address ] interface tunnel tunnel-number vsi vsi-name

Default

VXLAN VSIs do not have static MAC address entries.

Views

System view

Predefined user roles

network-admin

Parameters

mac-address: Specifies a MAC address in H-H-H format. Do not specify a multicast MAC address or an all-zeros MAC address. You can omit the consecutive zeros at the beginning of each segment. For example, you can enter f-e2-1 for 000f-00e2-0001.

interface tunnel tunnel-number: Specifies a VXLAN tunnel interface by its tunnel interface number. The tunnel interface must already exist. This option applies to remote MAC addresses.

vsi vsi-name: Specifies a VSI name, a case-sensitive string of 1 to 31 characters.

Usage guidelines

A remote MAC address is the MAC address of a VM in a remote site. Remote MAC entries include manually added MAC entries, dynamically learned MAC entries, and MAC entries advertised through BGP EVPN.

When you add a remote MAC address entry, make sure the VSI's VXLAN has been specified on the VXLAN or VXLAN-DCI tunnel.

Do not configure static remote-MAC entries for tunnels that are automatically established by using EVPN.

· EVPN re-establishes tunnels if the transport-facing interface goes down and then comes up. If you have configured static remote-MAC entries, the entries are deleted when the tunnels are re-established.

· EVPN re-establishes tunnels if you perform configuration rollback. If the tunnel IDs change during tunnel re-establishment, configuration rollback fails, and static remote-MAC entries on the tunnels cannot be restored.

The undo mac-address static vsi vsi-name command removes all static MAC address entries for a VSI.

Examples

# Add MAC address 000f-e201-0101 to VSI vsi1. Specify Tunnel-interface 1 as the outgoing interface.

<Sysname> system-view

[Sysname] mac-address static 000f-e201-0101 interface tunnel 1 vsi vsi1

Related commands

vxlan tunnel mac-learning disable

reserved vxlan

Use reserved vxlan to specify a reserved VXLAN.

Use undo reserved vxlan to restore the default.

Syntax

reserved vxlan vxlan-id

undo reserved vxlan

Default

No VXLAN has been reserved.

Views

System view

Predefined user roles

network-admin

Parameters

vxlan-id: Specifies a VXLAN ID in the range of 0 to 16777215.

Usage guidelines

You can specify only one reserved VXLAN on the VTEP. The reserved VXLAN cannot be the VXLAN created on any VSI.

The reserved VXLAN ID cannot be the same as the remote VXLAN ID specified by using the mapping vni command.

Examples

# Specify VXLAN 10000 as the reserved VXLAN.

<Sysname> system-view

[Sysname] reserved vxlan 10000

Related commands

mapping vni (EVPN Command Reference)

reset arp suppression vsi

Use reset arp suppression vsi to clear ARP flood suppression entries on VSIs.

Syntax

reset arp suppression vsi [ name vsi-name ]

Views

User view

Predefined user roles

network-admin

Parameters

name vsi-name: Specifies a VSI by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VSI, this command clears ARP flood suppression entries on all VSIs.

Examples

# Clear ARP flood suppression entries on all VSIs.

<Sysname> reset arp suppression vsi

This command will delete all entries. Continue? [Y/N]:y

Related commands

arp suppression enable

display arp suppression vsi

reset ipv6 nd suppression vsi

Use reset ipv6 nd suppression vsi to clear ND flood suppression entries on VSIs.

Syntax

reset ipv6 nd suppression vsi [ name vsi-name ]

Views

User view

Predefined user roles

network-admin

Parameters

name vsi-name: Specifies a VSI by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VSI, this command clears ND flood suppression entries on all VSIs.

Examples

# Clear ND flood suppression entries on all VSIs.

<Sysname> reset ipv6 nd suppression vsi

This command will delete all entries. Continue? [Y/N]:y

Related commands

display ipv6 nd suppression vsi

ipv6 nd suppression enable

reset l2vpn mac-address

Use reset l2vpn mac-address to clear dynamic MAC address entries on VSIs.

Syntax

reset l2vpn mac-address [ vsi vsi-name ]

Views

User view

Predefined user roles

network-admin

Parameters

vsi vsi-name: Specifies a VSI by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VSI, this command clears all dynamic MAC address entries on all VSIs.

Usage guidelines

Use this command when the number of dynamic MAC address entries reaches the limit or the device learns incorrect MAC addresses.

Examples

# Clear the dynamic MAC address entries on VSI vpn1.

<Sysname> reset l2vpn mac-address vsi vpn1

Related commands

display l2vpn mac-address vsi

selective-flooding mac-address

Use selective-flooding mac-address to enable selective flood for a MAC address.

Use undo selective-flooding mac-address to disable selective flood for a MAC address.

Syntax

selective-flooding mac-address mac-address

undo selective-flooding mac-address mac-address

Default

Selective flood is disabled for all MAC addresses.

Views

VSI view

Predefined user roles

network-admin

Parameters

mac-address: Specifies a MAC address. The MAC address cannot be all Fs.

Usage guidelines

This command excludes a remote unicast or multicast MAC address from the remote flood suppression done by using the flooding disable command. The VTEP will flood the frames destined for the specified MAC address to remote sites when floods are confined to the local site.

Examples

# Enable selective flood for 000f-e201-0101 on VSI vsi1.

<Sysname> system-view

[Sysname] vsi vsi1

[Sysname-vsi-vsi1] selective-flooding mac-address 000f-e201-0101

Related commands

flooding disable (VSI view)

shutdown

Use shutdown to shut down a VSI.

Use undo shutdown to bring up a VSI.

Syntax

shutdown

undo shutdown

Default

VSIs are up.

Views

VSI view

Predefined user roles

network-admin

Usage guidelines

Use this command to temporarily disable a VSI to provide Layer 2 switching services. The shutdown action does not change settings on the VSI. You can continue to configure the VSI. After you bring up the VSI again, the VSI provides services based on the latest settings.

Examples

# Shut down VSI vpn1.

<Sysname> system-view

[Sysname] vsi vpn1

[Sysname-vsi-vpn1] shutdown

Related commands

display l2vpn vsi

tunnel

Use tunnel to assign VXLAN tunnels to a VXLAN.

Use undo tunnel to remove VXLAN tunnels from a VXLAN.

Syntax

tunnel { tunnel-number | all }

undo tunnel { tunnel-number | all }

Default

A VXLAN does not contain VXLAN tunnels.

Views

VXLAN view

Predefined user roles

network-admin

Parameters

tunnel-number: Specifies a tunnel interface number. The value range for this argument is 0 to 20479. The tunnel must be a VXLAN tunnel.

Usage guidelines

This command assigns a VXLAN tunnel to a VXLAN to provide Layer 2 connectivity for the VXLAN between two sites. In unicast mode, the system floods unknown unicast, multicast, and broadcast traffic to each tunnel in the VXLAN.

You can assign multiple VXLAN tunnels to a VXLAN, and configure a VXLAN tunnel to trunk multiple VXLANs.

Examples

# Assign VXLAN tunnels 1 and 2 to VXLAN 10000.

<Sysname> system-view

[Sysname] vsi vpna

[Sysname-vsi-vpna] vxlan 10000

[Sysname-vsi-vpna-vxlan-10000] tunnel 1

[Sysname-vsi-vpna-vxlan-10000] tunnel 2

Related commands

display vxlan tunnel

tunnel global source-address

Use tunnel global source-address to specify a global source address for VXLAN tunnels.

Use undo tunnel global source-address to restore the default.

Syntax

tunnel global source-address { ipv4-address | ipv6 ipv6-address }

undo tunnel global source-address [ ipv6 ]

Default

No global source address is specified for VXLAN tunnels.

Views

System view

Predefined user roles

network-admin

Parameters

ipv4-address: Specifies an IPv4 address.

ipv6 ipv6-address: Specifies an IPv6 address. If you do not specify the ipv6 keyword when using the undo form of the command, the global IPv4 address is deleted.

Usage guidelines

A VXLAN tunnel uses the global source address if you do not specify a source interface or source address for the tunnel.

The global source address takes effect only on VXLAN tunnels (VXLAN-DCI tunnels not included).

IPv4 VXLAN tunnels use the global IPv4 source address. IPv6 VXLAN tunnels use the global IPv6 source address.

Examples

# Specify 1.1.1.1 as the global source address for VXLAN tunnels.

<Sysname> system-view

[Sysname] tunnel global source-address 1.1.1.1

vsi

Use vsi to create a VSI and enter its view, or enter the view of an existing VSI.

Use undo vsi to delete a VSI.

Syntax

vsi vsi-name

undo vsi vsi-name

Default

No VSIs exist.

Views

System view

Predefined user roles

network-admin

Parameters

vsi-name: Specifies a VSI name, a case-sensitive string of 1 to 31 characters.

Usage guidelines

A VSI acts as a virtual switch to provide Layer 2 switching services for a VXLAN on a VTEP. A VSI has all functions of a physical Ethernet switch, including source MAC address learning, MAC address aging, and flooding.

A VSI can provide services only for one VXLAN.

Examples

# Create VSI vxlan10 and enter VSI view.

<Sysname> system-view

[Sysname] vsi vxlan10

[Sysname-vsi-vxlan10]

Related commands

display l2vpn vsi

vxlan

Use vxlan to create a VXLAN and enter its view, or enter the view of an existing VXLAN.

Use undo vxlan to restore the default.

Syntax

vxlan vxlan-id

undo vxlan

Default

No VXLANs exist.

Views

VSI view

Predefined user roles

network-admin

Parameters

vxlan-id: Specifies a VXLAN ID in the range of 0 to 16777215.

Usage guidelines

You can create only one VXLAN for a VSI. The VXLAN ID for each VSI must be unique.

Examples

# Create VXLAN 10000 for VSI vpna and enter VXLAN view.

<Sysname> system-view

[Sysname] vsi vpna

[Sysname-vsi-vpna] vxlan 10000

[Sysname-vsi-vpna-vxlan-10000]

Related commands

vsi

vxlan invalid-udp-checksum discard

Use vxlan invalid-udp-checksum discard to enable the device to drop the VXLAN packets that fail UDP checksum check.

Use undo vxlan invalid-udp-checksum discard to restore the default.

Syntax

vxlan invalid-udp-checksum discard

undo vxlan invalid-udp-checksum discard

Default

The device does not check the UDP checksum of VXLAN packets.

Views

System view

Predefined user roles

network-admin

Usage guidelines

This command enables the device to check the UDP checksum of VXLAN packets.

The device always sets the UDP checksum of VXLAN packets to 0. For compatibility with third-party devices, a VXLAN packet can pass the check if its UDP checksum is 0 or correct. If its UDP checksum is incorrect, the VXLAN packet fails the check and is dropped.

Examples

# Enable the device to drop the VXLAN packets that fail UDP checksum check.

<Sysname> system-view

[Sysname] vxlan invalid-udp-checksum discard

vxlan local-mac report

Use vxlan local-mac report to enable local-MAC logging.

Use undo vxlan local-mac report to disable local-MAC logging.

Syntax

vxlan local-mac report

undo vxlan local-mac report

Default

Local-MAC logging is disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

When the local-MAC logging feature is enabled, the VXLAN module immediately sends a log message with its local MAC addresses to the information center. When a local MAC address is added or removed, a log message is also sent to the information center to notify the local-MAC change.

With the information center, you can set log message filtering and output rules, including output destinations. For more information about configuring the information center, see System Management Configuration Guide.

Examples

# Enable local-MAC logging.

<Sysname> system-view

[Sysname] vxlan local-mac report

vxlan source udp-port five-tuple

Use vxlan source udp-port five-tuple to configure a VXLAN tunnel interface to generate the source UDP port number in the VXLAN encapsulation based on the IP five-tuple of the inner Ethernet frame.

Use undo vxlan source udp-port five-tuple to restore the default.

Syntax

vxlan source udp-port five-tuple

undo vxlan source udp-port five-tuple

Default

The source UDP port number in the VXLAN encapsulation is generated based on the source and destination MAC addresses of the inner Ethernet frame.

Views

VXLAN tunnel interface view

Predefined user roles

network-admin

Usage guidelines

This command takes effect only on IPv4-based VXLAN. Only manually created VXLAN tunnel interfaces support this command.

Examples

# Configure VXLAN tunnel interface Tunnel 1 to generate the source UDP port number in the VXLAN encapsulation based on the IP five-tuple of the inner Ethernet frame.

<Sysname> system-view

[Sysname] interface tunnel 1 mode vxlan

[Sysname-Tunnel1] vxlan source udp-port five-tuple

vxlan tunnel mac-learning disable

Use vxlan tunnel mac-learning disable to disable remote-MAC address learning.

Use undo vxlan tunnel mac-learning disable to enable remote-MAC address learning.

Syntax

vxlan tunnel mac-learning disable

undo vxlan tunnel mac-learning disable

Default

Remote-MAC address learning is enabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

When network attacks occur, use this command to prevent the device from learning incorrect remote MAC addresses in the data plane.

Examples

# Disable remote-MAC address learning.

<Sysname> system-view

[Sysname] vxlan tunnel mac-learning disable

vxlan udp-port

Use vxlan udp-port to set the destination UDP port number for VXLAN packets.

Use undo vxlan udp-port to restore the default.

Syntax

vxlan udp-port port-number

undo vxlan udp-port

Default

The destination UDP port number is 4789 for VXLAN packets.

Views

System view

Predefined user roles

network-admin

Parameters

port-number: Specifies a UDP port number in the range of 1 to 65535. As a best practice, specify a port number in the range of 1024 to 65535 to avoid conflict with well-known ports.

Usage guidelines

You must configure the same destination UDP port number on all VTEPs in a VXLAN.

Examples

# Set the destination UDP port number to 6666 for VXLAN packets.

<Sysname> system-view

[Sysname] vxlan udp-port 6666

xconnect vsi

Use xconnect vsi to map an AC to a VSI.

Use undo xconnect vsi to restore the default.

Syntax

xconnect vsi vsi-name [ access-mode { ethernet | vlan } | leaf ]

undo xconnect vsi

Default

An AC is not mapped to any VSI.

Views

Interface view

Predefined user roles

network-admin

Parameters

vsi-name: Specifies the VSI name, a case-sensitive string of 1 to 31 characters.

access-mode: Specifies an access mode. The default access mode is VLAN.

ethernet: Specifies the Ethernet access mode.

vlan: Specifies the VLAN access mode.

Usage guidelines

To monitor the status of an AC, associate it with track entries.

For traffic that matches the AC, the system uses the VSI's MAC address table to make a forwarding decision.

The access mode determines how a VTEP processes the 802.1Q VLAN tags in the inner Ethernet frames assigned to the VSI.

· VLAN access mode—Ethernet frames received from or sent to the local site must contain 802.1Q VLAN tags.

¡ For an Ethernet frame received from the local site, the VTEP removes all its 802.1Q VLAN tags before forwarding the frame.

¡ For an Ethernet frame destined for the local site, the VTEP adds 802.1Q VLAN tags to the frame before forwarding the frame.

In VLAN access mode, VXLAN packets sent between VXLAN sites do not contain 802.1Q VLAN tags. VXLAN can provide Layer 2 connectivity for different 802.1Q VLANs between sites. You can use different 802.1Q VLANs to provide the same service in different sites.

· Ethernet access mode—The VTEP does not process the 802.1Q VLAN tags of Ethernet frames received from or sent to the local site.

¡ For an Ethernet frame received from the local site, the VTEP forwards the frame with the 802.1Q VLAN tags intact.

¡ For an Ethernet frame destined for the local site, the VTEP forwards the frame without adding 802.1Q VLAN tags.

In Ethernet access mode, VXLAN packets sent between VXLAN sites contain 802.1Q VLAN tags. VXLAN cannot provide Layer 2 connectivity for different 802.1Q VLANs between sites. You must use the same 802.1Q VLAN to provide the same service between sites.

Examples

# Map GigabitEthernet 1/0/1 to VSI vpn1.

<Sysname> system-view

[Sysname] vsi vpn1

[Sysname-vsi-vpn1] quit

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] xconnect vsi vpn1

Related commands

display l2vpn interface

vsi

12-VXLAN Command Reference

Basic VXLAN commands

arp suppression enable

display arp suppression vsi

flooding disable (VSI view)

mac-address static vsi

tunnel

vxlan

vxlan local-mac report

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