Rapid Spanning Tree
Redundancy L2E
Release
4.1
03/08
4.1
The Spanning Tree Protocol
51
4.1.2 Bridge parameters
Each bridge is uniquely described using parameters:
X Bridge Identifier
X Root Path Costs for the bridge ports
X Port Identifier
4.1.3 Bridge Identifier
The Bridge Identifier consists of 8 bytes. The two highest-value bytes are the
priority number. The default setting for the priority number is 32 768, but the
Management Administrator can change this when configuring the network.
The six lowest-value bytes of the bridge identifier are the MAC address of the
bridge. The MAC address guarantees that every bridge has a different bridge
identifier.
The bridge with the smallest number for the bridge identifier has the highest
priority.
Figure 27: Bridge Identifier
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