[c-nsp] spanning-tree for local switching on ASR920

James Bensley jwbensley at gmail.com
Thu Oct 19 03:21:27 EDT 2017


On 19 October 2017 at 07:46, Gert Doering <gert at greenie.muc.de> wrote:
> On Thu, Oct 19, 2017 at 06:05:47AM +0200, Peter Rathlev wrote:
>> On Wed, 2017-10-18 at 15:39 +0200, Gert Doering wrote:
>> > I have an ASR920 that is supposed to have gi0/0/10 and gi0/0/11 in
>> > the same bridge group, with a routed IP:
>> >
>> > interface GigabitEthernet0/0/10
>> >  no ip address
>> >  media-type auto-select
>> >  negotiation auto
>> >  cdp enable
>> >  service instance 10 ethernet
>> >   encapsulation untagged
>> >   l2protocol peer stp
>> >   bridge-domain 10
>> >  !
>>
...
>> Then configure STP for VLAN "10". It doesn't seem like there is any way
>> to map to an arbitrary PVST instance, VLAN ID and bridge domain ID has
>> to match.

I don't know the answer to you question but Peter's suggestion sounds
like a probably answer to me. However, you didn't share you STP
config, or was "l2protocol peer stp" all of it? :)

Cheers,
James.


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