Specifications

Getting Started with HP ProCurve Switching and Routing
Module 5 – 140 Rev. 9.41
Bridge and port IDs
Once you enable STP, you may want to configure two of the STP options that affect
convergence: bridge priority and port priority.
The switches include these values in the BPDU:
Bridge ID = bridge priority + switch’s MAC address
Port ID = port priority + port number
Switches use the bridge ID to select the root bridge and the root path.
Switches use the port ID (which is the port priority + port number) to select the root
port if two paths have the lowest cost and the neighbor for both has the same bridge
ID. For example, this might happen when two switches are connected with two
cables.
For HP Internal Use Only