Service loopback group commands 1

display service-loopback group· 1

port service-loopback group· 1

service-loopback group· 2

 

display service-loopback group

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

Syntax

display service-loopback group [ number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

number: Specifies a service loopback group ID. The value range for the number 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:

 FortyGigE1/1/1

 FortyGigE1/1/2

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 traffic. ·     Tunnel—Supports unicast tunnel traffic. ·     Multiport—Supports multiport ARP traffic.
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 number

undo port service-loopback group

Default

A service loopback group does not contain ports.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

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

You can assign a maximum of 32 ports to a service loopback group. A port can belong to only one service loopback group.

When you assign a port to a service loopback group, the system removes the configuration on the port. For correct traffic processing, make sure the service loopback group has a minimum of one member port when it is being used by a feature.

Examples

# Assign FortyGigE 1/1/1 to service loopback group 5.

<Sysname> system-view

[Sysname] interface fortygige 1/1/1

[Sysname-FortyGigE1/1/1] 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 number type { { multicast-tunnel | tunnel } *| multiport }

undo service-loopback group number

Views

System view

Predefined user roles

network-admin

Parameters

number: Specifies a service loopback group ID in the range of 1 to 1024.

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

multicast-tunnel: Specifies the multicast tunnel service.

tunnel: Specifies the unicast tunnel service.

multiport: Specifies the multiport ARP service.

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 the 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 the service loopback group.

For 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 the unicast tunnel service for the group.

<Sysname> system-view

[Sysname] service-loopback group 5 type tunnel