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

[Caio]

Same MTU 9216.
LDP neighborhood ok
Same loopback filters, the only change was the L2 path.

Cheers,
Caio

Em 20 de out de 2017 9:57 AM, "Alexandre Guimaraes" <
alexandre.guimaraes at ascenty.com> escreveu:

MTU?

RSVP ISIS/OSPF LDP neighborhood are ok?

Loopback filters?

att
Alexandre

Em 20 de out de 2017, à(s) 08:26, Caio <caiot5 at gmail.com> escreveu:

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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