Configuring Stp/Rstp - Huawei AR530 series Configuration Manual

Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Ethernet Switching
Parameter
Max Age

6.6 Configuring STP/RSTP

This section describes how to configure STP/RSTP.
6.6.1 Configuring Basic STP/RSTP Functions
You can configure STP/RSTP on an Ethernet network to trim the network into a loop-free tree
topology.
6.6.1.1 Configuring the STP/RSTP Mode
Context
A switching device supports three working modes: STP, RSTP, and MSTP. Use the STP mode
on a ring network running only STP, and use the RSTP mode on a ring network running only
RSTP. In other scenarios, the default MSTP mode is recommended.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
stp mode { stp | rstp }
The working mode of the switching device is set to STP or RSTP.
By default, the working mode of a switching device is MSTP. MSTP is compatible with STP
and RSTP.
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6.6.1.2 (Optional) Configuring the Root Bridge and Secondary Root Bridge
Context
The root bridge of a spanning tree is automatically calculated. You can also manually specify a
root bridge or secondary root bridge.
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Issue 01 (2014-11-30)
A spanning tree can have only one effective root bridge. When two or more devices are
specified as root bridges for a spanning tree, the device with the smallest MAC address is
used as the root bridge.
You can specify multiple secondary root bridges for each spanning tree. When the root
bridge fails or is powered off, a secondary root bridge becomes the new root bridge. If a
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Default Setting
2000 centiseconds
6 STP/RSTP Configuration
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