Huawei AR3200 Series - Page 244

Context
An MST region contains multiple switching devices and network segments. These switching
devices are directly connected and have the same region name, same VLAN-to-instance
mapping, and the same configuration revision number after MSTP is enabled. One switching
network can have multiple MST regions. You can use MSTP commands to group multiple
switching devices into one MST region.
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
Perform the following steps 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-id1 [ to vlan-id2 ] }&<1-10> command to configure
VLAN-to-instance mappings.
l Run the vlan-mapping modulo modulo command to enable VLAN-to-instance mapping
assignment based on a default algorithm.
By default, all VLANs in an MST region are mapped to MSTI 0.
Huawei AR3200 Series Enterprise Routers
Configuration Guide - LAN 8 MSTP Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
233