Displaying And Maintaining Service Loopback Groups; Configuration Example - HP 4800G Series Configuration Manual

You can change the service type of an existing service loopback group. For the change to be
successful, you must ensure that the service group has not been referenced; the attributes of all
member ports (if any) are not conflicting with the target service type; and no service loopback group
has been created for the target service type, because only one service loopback group is allowed
for a service type.
You can remove any service loopback group except the referenced ones.

Displaying and Maintaining Service Loopback Groups

Display information about the specified
service loopback group or all service
loopback groups

Configuration Example

Network requirements
Ports of Device A support the tunnel service. Assign GigabitEthernet 1/0/1 through GigabitEthernet
1/0/3 to a service loopback group to increase bandwidth and achieve load sharing.
Configuration procedure
# Create service loopback group 1, and specify the service type as Tunnel (unicast tunnel service).
<DeviceA> system-view
[DeviceA] service-loopback group 1 type tunnel
# Disable MSTP on GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3 and then assign them to
service loopback group 1.
[DeviceA] interface GigabitEthernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] undo stp enable
[DeviceA-GigabitEthernet1/0/1] port service-loopback group 1
[DeviceA-GigabitEthernet1/0/1] interface GigabitEthernet 1/0/2
[DeviceA-GigabitEthernet1/0/2] undo stp enable
[DeviceA-GigabitEthernet1/0/2] port service-loopback group 1
[DeviceA-GigabitEthernet1/0/2] interface GigabitEthernet 1/0/3
[DeviceA-GigabitEthernet1/0/3] undo stp enable
[DeviceA-GigabitEthernet1/0/3] port service-loopback group 1
[DeviceA-GigabitEthernet1/0/3] quit
# Create a logical interface Tunnel 1/0/0 and reference service loopback group 1 on Tunnel 1.
[DeviceA] interface tunnel 1/0/0
[DeviceA-Tunnel1/0/0] service-loopback-group 1
To do... Use the command...
display service-loopback
group [ number ]
1-3
Remarks
Available in any view