Huawei Quidway S9300 Configuration Guide - Ethernet

The system view is displayed.
Step 2 Run:
stp pathcost-standard { dot1d-1998 | dot1t | legacy }
A path cost calculation method is configured.
By default, the IEEE 802.1t standard method is used to calculate the default path cost.
All switching devices on a network must use the same path cost calculation method.
Step 3 Run:
interface interface-type interface-number
The Ethernet interface view is displayed.
Step 4 Run:
stp instance instance-id cost cost
A path cost is set for the port in the current MSTI.
l When the Huawei proprietory calculation method is used, cost ranges from 1 to 200000.
l When the IEEE 802.1d standard method is used, cost ranges from 1 to 65535.
l When the IEEE 802.1t standard method is used, cost ranges from 1 to 200000000.
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9.2.6 (Optional) Setting a Port Priority in an MSTI
The lower the numerical value, the more likely the port on a switching device becomes a
designated port; the higher the numerical value, the more likely the port is to be blocked.
Context
In spanning tree calculation, priorities of ports on switching devices in MSTIs determine
designated port selection.
If you expect to block a port on a switching device in an MSTI to eliminate loops, set the port
priority value to be larger than the default value. This port will be blocked in designated port
selection.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The Ethernet interface view is displayed.
Step 3 Run:
stp instance instance-id port priority priority
A port priority is set in an MSTI.
By default, the port priority is 128.
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.
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Huawei Quidway S9300 Specifications

General

Brand	Huawei
Model	Quidway S9300
Category	Network Router
Language	English