to the switching devices running STP to STP and other interfaces still run MSTP. This enables
devices running different spanning tree protocols to interwork with each other.
----End
9.2.3 Configuring and Activating an MST Region
MSTP divides a switching network into multiple MST regions. After an MST region name,
VLAN-to-instance mappings, and an MSTP revision number are configured, activating the MST
region is necessary. After this step is done, MST region configuration is complete.
Context
An MST region contains multiple switching devices and network segments between them. These
switching devices are directly connected and have the same region name, same VLAN-to-
instance mapping, same configuration revision number after MSTP is enabled. One switching
network can have multiple MST regions and multiple switching devices can be grouped into
one MST region by using MSTP configuration commands.
CAUTION
Two switching devices belong to the same MST region when they have the same:
l Name of the MST region
l Mapping between VLANs and MSTIs
l Revision level of the MST region
Do as follows on a switching device that needs to join an MST region:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
stp region-configuration
The MST region view is displayed.
Step 3 Run:
region-name name
The name of an MST region is configured.
By default, the MST region name is the MAC address of the management network interface on
the MPU of the switching device.
Step 4 Perform either of the following steps to configure VLAN-to-instance mappings.
l Run the instance instance-id vlan { vlan-id [ to vlan-id ] }&<1-10> command to configure
VLAN-to-instance mappings.
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 9 MSTP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
434
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