09-05-2014 12:19 PM - edited 03-07-2019 08:39 PM
Currently, i have an Cisco IE3000 switch, with an interface defined as a trunk. The other end is unknown to me, but I know it transmits tagged frames. I just don't know which VLAN-ids are in use - so I was thinking on doing some debugs to learn the VLAN-ids. Remote end does not transmit BPDUs
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09-05-2014 12:33 PM
Hey,
Best option would be if you can configure SPAN and capture the traffic also make sure to use encapsulation replicate keyword while configuring in order to preserve vlan tags.
HTH.
Regards,
RS.
09-05-2014 12:33 PM
Hey,
Best option would be if you can configure SPAN and capture the traffic also make sure to use encapsulation replicate keyword while configuring in order to preserve vlan tags.
HTH.
Regards,
RS.
09-06-2014 08:01 AM
Wireshark locally on the switch is not possible. The switch is inaccessible. I don't believe that RSPAN supports encapsulation replication. At least not on the IE3000
09-05-2014 01:04 PM
You may be able to do 'show mac-address-table' and see what VLANs appear under the VLAN column for the port in question.
HTH.
09-06-2014 07:57 AM
That would require me to define all VLANs, which may be to much for the IE3000. It supports only 1005.
A debug telling me that a packet have been dropped because the VLAN is not defined - would be the way...
09-06-2014 09:52 AM
4 times to see all 4000 vlans
09-06-2014 05:26 PM
Hello
show interface trunk
res
paul
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