Configuring Service Loopback Groups; Overview; Configuration Restrictions And Guidelines - H3C S7500E-X Configuration Manual

Configuring service loopback groups

Overview

A service loopback group contains one or multiple Ethernet ports for looping packets sent out by the
device back to the device. This feature must work with other features, such as GRE.
A service loopback group provides one of the following services:
•
Tunnel—Supports unicast tunnel traffic.
•
Multicast tunnel—Supports multicast tunnel traffic.
Member ports in a service loopback group are load balanced.

Configuration restrictions and guidelines

When you configure service loopback groups, follow these restrictions and guidelines:
•
The maximum number of service loopback groups and the maximum number of member ports
allowed in a service loopback group vary by location of member ports, as shown in the following
matrix:
Member port location
Some member ports
or the ingress ports
of the traffic are on
any of these OAP
modules.
No service loopback
group contains
member ports on
any of these OAP
modules.
•
Assign ports with the same rate to the same service loopback group for load balancing.
•
Make sure the ports you are assigning to a service loopback group meet the following
requirements:
The ports are not used for any other purposes. The configuration on a port is removed when
it is assigned to a service loopback group.
The ports support the service type of the service loopback group and are not members of
any other service loopback group.
•
You can configure only one service loopback group for a service type. However, you can use
one service loopback group with multiple features.
•
Do not change the service type of a service loopback group.
•
Do not delete a service loopback group that is being used by a feature.
•
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.
•
LSQ1FWBSC0.
•
LSQ1LBSC0.
•
LSQ1NSMSC0.
•
LSQ2FWBSC0.
•
LSU1FWCEA0.
•
LSU3FWCEA0.
•
LSU3WCMD0.
251
Maximum number
of service loopback
groups
128
1024
Maximum number
of member ports in
an service loopback
group
8
32