Viewing Rstp Per-Port Statistics - Siemens RUGGEDCOM ROX II User Manual

RUGGEDCOM ROX II
CLI User Guide
Parameter
regional-root-priority
regional-root-mac
root-port-slot
root-port-port
root-path-cost
regional-root-path-cost
configured-hello-time
learned-hello-time
configured-forward-delay
learned-forward-delay
configured-max-age
learned-max-age
total-top-changes
Section 5.36.9

Viewing RSTP Per-Port Statistics

To view Rapid Spanning Tree Protocol (RSTP) statistics for each port, type:
show switch spanning-tree port-rstp-stats
Viewing RSTP Per-Port Statistics
Description
The bridge identifier of the Internal Spanning Tree (IST) regional
root bridge for the Multiple Spanning Tree (MST) region this device
belongs to.
Synopsis: A string
The bridge identifier of the Internal Spanning Tree (IST) regional
root bridge for the Multiple Spanning Tree (MST) region this device
belongs to.
Synopsis: { ---, sm, lm1, lm2, lm3, lm4, lm5, lm6, swport, eth,
serport, celport, trnk }
If the bridge is designated, this is the slot containing the port that
provides connectivity towards the root bridge of the network.
If the bridge is designated, this is the port of the slot that provides
connectivity towards the root bridge of the network.
The total cost of the path to the root bridge, composed of the sum
of the costs of each link in the path. If custom costs have not been
configured. 1Gbps ports will contribute a cost of four, 100 Mbps
ports will contribute 19 and 10 Mbps ports will contribute 100. For
the Common and Internal Spanning Tree (CIST) instance of the
Multiple Spanning Tree Protocol (MSTP), this is an external root
path cost, which is the cost of the path from the Internal Spanning
Tree (IST) root (i.e. regional root) bridge to the Common Spanning
Tree (CST) root (i.e. network "global" root) bridge.
For the Common and Internal Spanning Tree (CIST) instance of the
Multiple Spanning Tree Protocol (MSTP), this is the cost of the path
to the Internal Spanning Tree (IST) root (i.e. regional root) bridge
The configured hello time from the Bridge RSTP Parameters menu.
The actual hello time provided by the root bridge as learned in
configuration messages. This time is used in designated bridges.
The configured forward delay time from the Bridge RSTP
Parameters menu.
The actual forward delay time provided by the root bridge as learned
in configuration messages. This time is used in designated bridges.
The configured maximum age time from the Bridge RSTP
Parameters menu.
The actual maximum age time provided by the root bridge as
learned in configuration messages. This time is used in designated
bridges.
A count of topology changes in the network, as detected on this
bridge through link failures or as signaled from other bridges.
Excessively high or rapidly increasing counts signal network
problems.
Chapter 5
Setup and Configuration
539