Optional) Setting The Priority Of An S9300 In A Specified Msti - Huawei Quidway S9300 Configuration Manual

8 MSTP Configuration
Context
Do as follows on the S9300 that needs to be added to the MST region.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run either of the following commands as required.
l
l
By default, an S9300 does not function as the root switch or the secondary root switch of a
spanning tree.
An S9300 can play different roles in different spanning trees. That is, the S9300 can function as
the root switch of a spanning tree and function as the secondary root switch of another spanning
tree. The S9300, however, cannot function as the root switch and secondary root switch of the
same spanning tree simultaneously.
An S9300 can function as the root of multiple spanning trees, but it is recommended that you
specify only one root switch for a spanning tree. You can specify multiple secondary root
switches for the same spanning tree. It is recommended that you specify one root switch and
multiple secondary root switches for a spanning tree.
----End

8.3.6 (Optional) Setting the Priority of an S9300 in a Specified MSTI

Context
If an S9300 is configured as the root switch or secondary root switch, the priority of the
S9300 cannot be set. If you want to set the priority of the S9300, you must disable the root switch
or secondary root switch.
Do as follows on the S9300 that needs to be added to the MST region.
8-12
Run:
stp [ instance instance-id ] root primary
The S9300 is configured as a root switch. This is similar to setting the priority of the
S9300 to 0.
Run:
stp [ instance instance-id ] root secondary
The S9300 is configured as a secondary switch. This is similar to setting the priority of the
S9300 to 4096.
CAUTION
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Copyright © Huawei Technologies Co., Ltd.
Quidway S9300 Terabit Routing Switch
Configuration Guide - Ethernet
Issue 03 (2009-08-20)