# Configure LSW2.
[LSW2] sep segment 2
[LSW2-sep-segment2] tc-notify segment 1
[LSW2-sep-segment2] quit
# Configure LSW3.
[LSW3] sep segment 2
[LSW3-sep-segment2] tc-notify segment 1
[LSW3-sep-segment2] quit
# Configure SEP segment 3 to notify SEP segment 1 of topology changes.
# Configure LSW3.
[LSW3] sep segment 3
[LSW3-sep-segment3] tc-notify segment 1
[LSW3-sep-segment3] quit
# Configure LSW4.
[LSW4] sep segment 3
[LSW4-sep-segment3] tc-notify segment 1
[LSW4-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 LSW1 to LSW11.
For details about the configuration, see the configuration files.
Step 3 Verify the configuration.
After completing the preceding configurations, do as follows to verify the configuration. LSW1
is used as an example.
l Run the shutdown command on GE1/0/1 of LSW2 to simulate a port fault, and then run the
display sep interface command on LSW3 to check whether GE1/0/4 of LSW3 has switched
from the Discarding state to the Forwarding state.
<LSW3> display sep interface gigabitethernet 1/0/4
SEP segment 1
----------------------------------------------------------------
Interface Port Role Neighbor Status Port Status
----------------------------------------------------------------
GE1/0/4 common up forwarding
----End
Configuration Files
l Configuration file of LSW1
#
sysname LSW1
#
vlan batch 10 100 200 300
#
sep segment 1
control-vlan 10
block port optimal
preempt delay 30
protected-instance 0 to 48
#
interface GigabitEthernet1/0/1
port hybrid tagged vlan 10 100 200
stp disable
sep segment 1 edge primary
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 10 SEP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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