Enterasys D2 D2G124-12P

show spantree nonforwardingreason
D-Series CLI Reference 6-51
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:
D2(rw)->show spantree nonforwardingreason port ge.1.1
The non-forwarding reason for port ge.1.1 on SID 0 is None