show spantree nonforwardingreason
Enterasys C3 Configuration Guide 13-57
show spantree nonforwardingreason
Use this command to display the reason for placing a port in a non-forwarding state due to an
exceptional condition.
Syntax
show spantree nonforwardingreason port-string [sid sid]
Parameters
Defaults
If no port-string is specified, non-forwarding reason is displayed for all ports.
If no SID is specified, SID 0 is assumed.
Mode
Switch command, read-only.
Usage
Exceptional conditions causing a port to be placed in listening or blocking state include a Loop
Protect event, receipt of disputed BPDUs, and loopback detection.
Example
This example shows how to display the non-forwarding reason on ge.1.1:
C3(rw)->show spantree nonforwardingreason port ge.1.1
The non-forwarding reason for port ge.1.1 on SID 0 is None
port-string Specifies port(s) for which to display the non-forwarding reason.
sid sid (Optional) Specifies the specific Spanning Tree(s) for which to display
the non-forwarding reason. Valid values are 0 - 4094. If not specified,
SID 0 is assumed.
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