[j-nsp] l2circuit down one side/up another

[Alain Hebert]

     Well,

     IS-IS or OSPF?

     Q: And don't you need at least RSVP for the LDP signaling? But 
since he didn't change nothing beside the L2 switches...  Not relevant 
(maybe).

     I had a hard time passing IS-IS thru Extreme Switch, give up after 
5m and used OSPF for that segment of our Pre-Prod Lab.

     ( Since its only for a redundant MX it don't matter much to 
perfectly match Prod for that part )

-----
Alain Hebert                                ahebert at pubnix.net
PubNIX Inc.
50 boul. St-Charles
P.O. Box 26770     Beaconsfield, Quebec     H9W 6G7
Tel: 514-990-5911  http://www.pubnix.net    Fax: 514-990-9443

On 10/20/17 10:39, Caio wrote:
>> *Did you change any of the physical interfaces as part of your topology
> change? And if so, is family mpls configured on that new port? Is that new
> port configured under protocols ldp and protocols mpls along with the
> loopback used for signaling? *
>
> No. Both of the MX routers are using the same interfaces.
> The only thing that has changed was the switches  (l2 path) between them.
>
> *Do your control plane filters still permit ldp on both ends*?
>
> Yes
>
> Cheers,
> Caio
>
>
> Em 20 de out de 2017 11:12 AM, "Daniel Rohan" <drohan at gmail.com> escreveu:
>
> Did you change any of the physical interfaces as part of your topology
> change? And if so, is family mpls configured on that new port? Is that new
> port configured under protocols ldp and protocols mpls along with the
> loopback used for signaling?
>
> Do your control plane filters still permit ldp on both ends?
>
>
>
> Dan
>
> On Fri, Oct 20, 2017 at 3:26 AM Caio <caiot5 at gmail.com> wrote:
>
>> Hello people,
>>
>> There's a weird problem I would like to share with you.
>> I have the following scenario:
>>
>> MX104 -> L2 SW (1) -> L2 SW (2) -> MX80
>>
>> Both L2 SW are Extreme X460 and they're doing nothing except forwarding
>> frames at layer 2.
>>
>> In order to simplify our topology, we have changed the MX104 uplink to L2
>> SW (2) so the topology went to MX104 -> L2 SW (2) -> MX80.
>>
>> After that, the BGP sessions went up and all the traffic has returned as
>> expected, however I have three l2circuit connections (vlan-ccc mode) and
>> they went to "Down (OL)" status at one side and Up at another. In order to
>> reestablish them we had to do a rollback of the physical changes we did.
>>
>> As it just don't make any sense to me, I summon you experts to help me with
>> that, so we can try to figure out what went wrong.
>>
>> Additional details: I'm using LDP signaling at both sides. It' a point to
>> point L3 connection, so I have the loopback interfaces configured at both
>> sides and a /30 between them, also I have static routes to reach their
>> loopback interface's addresses.
>>
>> Any help will be appreciated.
>>
>> Cheers,
>> Caio
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