# Configure Router2.
[Router2] sep segment 2
[Router2-sep-segment2] tc-notify segment 1
[Router2-sep-segment2] quit
# Configure Router3.
[Router3] sep segment 2
[Router3-sep-segment2] tc-notify segment 1
[Router3-sep-segment2] quit
# Configure SEP segment 3 to notify SEP segment 1 of topology changes.
# Configure Router3.
[Router3] sep segment 3
[Router3-sep-segment3] tc-notify segment 1
[Router3-sep-segment3] quit
# Configure Router4.
[Router4] sep segment 3
[Router4-sep-segment3] tc-notify segment 1
[Router4-sep-segment3] quit
NOTE
The topology change notification function is configured on edge devices between SEP segments so
that the upper-layer network can be notified of topology changes on the lower-layer network.
Step 2 Configure the Layer 2 forwarding function on the CEs and Router1 to Router11.
For details about the configuration, see the configuration files.
Step 3 Verify the configuration.
After completing the preceding configurations, verify the configuration. Router1 is used as an
example.
l Run the shutdown command on GE7/0/1 of Router2 to simulate an interface fault, and then
run the display sep interface command on Router3 to check whether GE7/0/4 of Router3
has switched from the Discarding state to the Forwarding state.
<Router3> display sep interface gigabitethernet 7/0/4
SEP segment 1
----------------------------------------------------------------
Interface Port Role Neighbor Status Port Status
----------------------------------------------------------------
GE7/0/4 common up forwarding
----End
Configuration Files
l Configuration file of Router1
#
sysname Router1
#
vlan batch 10 100 200 300
#
sep segment 1
control-vlan 10
block port optimal
preempt delay 30
protected-instance 0 to 4094
#
interface GigabitEthernet7/0/1
port hybrid tagged vlan 10 100 200
Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Ethernet Switching
8 SEP Configuration
Issue 01 (2014-11-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
325
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