Monitoring and Analyzing Switch Operation

Status and Counters Data

Spanning Tree Protocol (MSTP) InformationCLI Access to MSTP Data

This option lists the MSTP configuration, root data, and per-port data (cost, priority, state, and designated bridge).

Syntax: show spanning-tree

This command displays the switch’s global and regional spanning-tree status, plus the per-port spanning-tree operation at the regional level. Note that values for the following parameters appear only for ports connected to active devices: Designated Bridge, Hello Time, PtP, and Edge.

Figure B-12. Output from show spanning-tree Command

B-18