Contents

Service loopback group commands· 1

display service-loopback group· 1

port service-loopback group· 1

service-loopback group· 2

 

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

 

Group ID: 5                  Service type: Telemetry stream

  Member                              Status

  HundredGigE1/0/1                Selected

  HundredGigE1/0/2                Unselected

Table 1 Command output

Field	Description
Group ID	Service loopback group ID.
Service type	Service type of the service loopback group: ·     Telemetry-stream—Supports Telemetry stream traffic.
Member	Member ports of the service loopback group.
Status	Status of each member port in the service loopback group: ·     Selected—The port is in Selected state and can forward service packets. ·     Unselected—The port is in Unselected state. It cannot forward service packets.

 

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 a 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

CAUTION: ·     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. ·     If a port is the only member of a referenced service loopback group, then removing that port from the group will disrupt the functionality of the telemetry stream.

 

Breakout interfaces cannot be assigned to service loopback groups.

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.

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 telemetry-stream

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.

telemetry-stream: Specifies the Telemetry stream service.

Usage guidelines

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

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 the Telemetry stream service for the group.

<Sysname> system-view

[Sysname] service-loopback group 5 type telemetry-stream