Options for troubleshooting spanning tree?

mimbanis
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Options for troubleshooting spanning tree?

Tue Feb 12, 2019 7:40 pm

Hi All,

Are there any options / commands for troubleshooting spanning tree even if it is just seeing sent / received BPDU's? I have one hop with a Cisco switch running RPVST with a Netonix switch RSTP and 2 links between them 1 Airfibre and 1 Aviat WTM4200 with the WTM set as preferred using STP costs which works elsewhere but not on these links.

Regards
Simon

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Stephen
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Re: Options for troubleshooting spanning tree?

Tue Feb 12, 2019 10:49 pm

In the cli you can use the command
Code: Select all
show stp


The STP tab in the web UI is also fairly comprehensive.

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mike99
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Re: Options for troubleshooting spanning tree?

Wed Feb 13, 2019 1:28 pm

If you want to see BPDU frames, you should mirror the port and look at those with wireshark.

mimbanis
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Re: Options for troubleshooting spanning tree?

Tue Feb 19, 2019 8:24 am

Hi Guys,
Thanks, bit of a delayed reply. I was afraid I was going to have to mirror the port but was hoping there was a way around it I guess not to be though.
Regards
Simon

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