Designated Bridge Priority(Spanning Tree); Designated Bridge Mac Address (Spanning Tree) - Huawei OptiX OSN 550 Configuration Manual

OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide

7.80 Designated Bridge Priority(Spanning Tree)

Description
The Designated Bridge Priority parameter indicates the priority of each bridge during the
selection of the root bridge based on the STP. The bridge priority is a part of the bridge ID. A
bridge ID consists of the bridge priority and MAC address of the bridge. The bridge whose ID
is the smallest is selected as the root bridge in the network.
Impact on the System
If the priority of a bridge is higher, the probability is higher that the bridge is selected as the root
bridge.
Values
Value Range
0-61440
Configuration Guidelines
If the value of the parameter is smaller, the priority of the bridge is higher. Set this parameter
according to the actual network condition.

7.81 Designated Bridge MAC Address (Spanning Tree)

Description
The Designated Bridge MAC Address parameter indicates the MAC address of a bridge.
To ensure that the bridge protocols operate normally, the following requirements should be met:
l
l
l
l
Impact on the System
The MAC address of a bridge affects the priority of the bridge.
Issue 02 (2011-06-30)
The multicast MAC address must be unique and be identified by all the bridges in the LAN.
The multicast MAC address identifies the protocol entities of a bridge that is connected to
different and individual physical network segments.
Each bridge has a unique ID in the entire LAN.
Ports on a bridge have port IDs, which are different from each other. Ports IDs of different
bridges are different. The values of these IDs can be assigned independently. The values
can also be used by other bridges.
Each bridge must provide the values of the parameters that are described previously or
provide the mechanism for assigning values for these parameters.
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Default Value
32768
7 List of Parameters
7-67