Re: Troubleshooting Layer 2 trunks

service provider edge ports might be configured for qinq.
stp should be permitted in l2protocol-tunnel configuration, otherwise
customer stp doesn't work.

regards
siva

On 8/1/11, Irfan Sid <lifeoverip_at_gmail.com> wrote:
> But what does stp receive packets have to do with DOT1q trunking? do you
> mean DTP packets? but DTP can be turned off, and is by most providers I
> believe.
>
> On Sun, Jul 31, 2011 at 5:59 PM, skr <skr.mandalapu_at_gmail.com> wrote:
>
>> try spanning tree debugging on service provider connected ports. you
>> should be seeing stp receive packets.
>> wireshark also useful.
>>
>> regards
>> siva
>>
>> On 7/11/11, Irfan Sid <lifeoverip_at_gmail.com> wrote:
>> > I am troubleshooting a Dot1q Layer EoMPLS solution with the service
>> provider
>> > which is faililng to work. Are there any good cisco debug commands I can
>> use
>> > to for Layer 2 troubleshooting so that I can go back to the service
>> provider
>> > with some concrete evidence.
>> >
>> > Will packet capture like wireshark be good?
>> >
>> >
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>> >
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Received on Tue Aug 02 2011 - 10:55:57 ART