(5) Configure the topology change notification function so that the upper-layer network
running MSTP can be notified of topology changes in the SEP segment.
2. Configure basic MSTP functions.
(1) Add PE1 to PE4 to an MST region RG1.
(2) Create VLANs on PE1 to PE4 and add interfaces on the STP ring to the VLANs.
(3) Configure PE3 as the root bridge and PE4 as the backup root bridge.
3. Configure the Layer 2 forwarding function on CE1 and LSW1 to LSW3.
Data Preparation
To complete the configuration, you need the following data:
l SEP segment ID
l Control VLAN of the SEP segment
l Port roles in the SEP segment
l Preemption mode
l Method of selecting the port to block
l MST region name, MSTI ID, and priorities of the PEs in the region
Procedure
Step 1 Configure basic SEP functions.
1. Configure SEP segment 1 on LSW1 to LSW5 and configure VLAN 10 as the control VLAN
of SEP segment 1.
# Configure LSW1.
<Quidway> system-view
[Quidway] sysname LSW1
[LSW1] sep segment 1
[LSW1-sep-segment1] control-vlan 10
[LSW1-sep-segment1] protected-instance all
[LSW1-sep-segment1] quit
# Configure LSW2.
<Quidway> system-view
[Quidway] sysname LSW2
[LSW2] sep segment 1
[LSW2-sep-segment1] control-vlan 10
[LSW2-sep-segment1] protected-instance all
[LSW2-sep-segment1] quit
# Configure LSW3.
<Quidway> system-view
[Quidway] sysname LSW3
[LSW3] sep segment 1
[LSW3-sep-segment1] control-vlan 10
[LSW3-sep-segment1] protected-instance all
[LSW3-sep-segment1] quit
NOTE
l The control VLAN must be a VLAN that has not been created or used, but the configuration file
automatically displays the command for creating the VLAN.
l Each SEP segment must be configured with a control VLAN. After an interface is added to the
SEP segment configured with a control VLAN, the interface is automatically added to the control
VLAN.
2. Add LSW1 to LSW3 to SEP segment 1 and configure port roles.
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.
544
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