02-Layer 2-LAN Switching Command Reference

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12-Service loopback group commands
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Service loopback group commands

display service-loopback group

Use display service-loopback group to display service loopback group information.

Syntax

display service-loopback group [ group-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

group-id: Specifies a service loopback group ID. The value range for the group-id argument is 1 to 1024. If you do not specify a service loopback group, this command displays information about all service loopback groups.

Examples

# Display information about service loopback group 5.

<Sysname> display service-loopback group 5

 

Service Group ID: 5       Service Type: Tunnel

Member:

 HundredGigE1/0/1

 HundredGigE1/0/2

Table 1 Command output

Field

Description

Service Group ID

Service loopback group ID.

Service Type

Service type of the service loopback group:

·     Multicast-tunnel—Supports multicast tunnel services.

·     Tunnel—Supports unicast tunnel services.

·     VSI-gateway—Supports VSI gateway services.

Member

Member ports of the service loopback group.

 

port service-loopback group

Use port service-loopback group to assign a port to a service loopback group.

Use undo port service-loopback group to remove a port from a service loopback group.

Syntax

port service-loopback group group-id

undo port service-loopback group

Default

A port does not belong to any service loopback group.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

group-id: Specifies a service loopback group ID. The value range for the group-id argument is 1 to 1024.

Usage guidelines

When you assign a port to a service loopback group, the system removes the configuration on the port. Make sure you are fully aware of the impact of this command before using it on a live network.

Before assigning a port to a service loopback group, make sure the port supports the service type of the group.

A port can belong to only one service loopback group. You can assign multiple ports to a service loopback group.

For correct traffic processing, make sure a service loopback group has a minimum of one member port when it is being used by a feature.

Examples

# Assign HundredGigE 1/0/1 to service loopback group 5.

<Sysname> system-view

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] port service-loopback group 5

service-loopback group

Use service-loopback group to create a service loopback group and specify its service type.

Use undo service-loopback group to delete a service loopback group.

Syntax

service-loopback group group-id type { { multicast-tunnel | tunnel } * | vsi-gateway }

undo service-loopback group group-id

Default

No service loopback groups exist.

Views

System view

Predefined user roles

network-admin

Parameters

group-id: Specifies a service loopback group ID. The value range for the group-id argument is 1 to 1024.

type: Specifies the service type of the service loopback group.

multicast-tunnel: Specifies multicast tunnel services.

tunnel: Specifies unicast tunnel services.

vsi-gateway: Specifies VSI gateway services.

Usage guidelines

Service loopback groups must work with other features, such as GRE. A service loopback group can be used by multiple features.

You must create a service loopback group before you can use it with a feature.

You can configure only one service loopback group for a service type. You cannot change the service type of a service loopback group.

To ensure correct traffic processing, do not delete a service loopback group that is being used by a feature.

Examples

# Create service loopback group 5 and specify unicast tunnel services for the group.

<Sysname> system-view

[Sysname] service-loopback group 5 type tunnel

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