[j-nsp] Fw: L2 Circuits accross domains

[Alex Arseniev]

You should have remote loopbacks also redistributed into LDP (if your 
transport label is from LDP).
In JUNOS, this does not happen by default, you must have LDP egress-policy 
for this to occur. By default, LDP announces only primary lo0.0 IP at .
Absent this, your L2circuits would show OL error (no outgoing label).
Before you ask, this is totally different to CSCO IOS which announces all 
routes (bar BGP ones) as LDP FECs.
HTH
Rgds
Alex

----- Original Message ----- 
From: "Peter Nyamukusa" <peternyamukusa at yahoo.com>
To: <juniper-nsp at puck.nether.net>
Cc: <peter at nyamukusa.com>
Sent: Tuesday, November 20, 2012 7:46 AM
Subject: [j-nsp] Fw: L2 Circuits accross domains


----- Forwarded Message -----

From: Peter Nyamukusa <peternyamukusa at yahoo.com>
To: "juniper-nsp at puck.nether.net" <juniper-nsp at puck.nether.net>
Sent: Tuesday, November 20, 2012 9:33 AM
Subject: L2 Circuits accross domains


Hi Folks,

I have an exsisting L3 / L2 MPLS network with Cisco ASR on the Core as PE 
router and Junper routers as PE router, i have been running l2circuits 
sucessfully for some time now with out any problems using the below configs 
on my PEs, I am running IS-IS as my IGP and BGP



[edit protocols l2circuit]
peter at xxx-PE1# show

}
neighbor 41.x.x.1 {
interface ge-0/0/2.2001 {
virtual-circuit-id 2001;
description "XYZ L2";
no-control-word;

ignore-mtu-mismatch;

[edit interfaces ge-0/0/2]
peter at xxx-PE1# show
description "Customers L2 Circuits";
vlan-tagging;
encapsulation vlan-ccc;
unit 2001 {
description "XYZ L2";
encapsulation vlan-ccc;
vlan-id 2001;
}

Neighbor: 41.x.x.2
Interface Type St Time last up # Up trans
ge-0/0/2.2001(vc 2001) rmt Up Nov 13 15:29:31 2012 1
Remote PE: 41.x.x.2, Negotiated control-word: No
Incoming label: 299776, Outgoing label: 299776
Local interface: ge-0/0/2.2001, Status: Up, Encapsulation:
 VLAN
Description: XYZ L2
Neighbor: 41.x.x.x.1
Interface Type St Time last up # Up trans
ge-0/0/2.2101(vc 2101) rmt Up Nov 13 15:29:28 2012 1
Remote PE: 41.x.x.1, Negotiated control-word: Yes (Null)
Incoming label: 299792, Outgoing label: 333568
Local interface: ge-0/0/2.2101, Status: Up, Encapsulation: VLAN
Description: ABC L2 - ANY POP



Now I am trying to extend these L2 circuits to anther MPLS Domain where we 
have direct Gigabit fibre connection I am using the same concept and 
establish ospf peering on the ASBR router with the remote ASN and 
redistributed my IGP so my loopbacks are seen by the PEs on both sides of 
the domains and establish ldp peering how ever the l2circuit is not coming 
up any help is appriciated as I have been working on this more than 24hrs 
and think that i am now a bit clouded


peter at yyy-BR1# run show l2circuit connections (ASN 1234)
Layer-2 Circuit Connections:

Legend for connection status (St)
EI -- encapsulation invalid NP -- interface h/w not present
MM -- mtu mismatch Dn -- down
EM -- encapsulation mismatch VC-Dn -- Virtual
 circuit Down
CM -- control-word mismatch Up -- operational
VM -- vlan id mismatch CF -- Call admission control failure
OL -- no outgoing label IB -- TDM incompatible bitrate
NC -- intf encaps not CCC/TCC TM -- TDM misconfiguration
BK -- Backup Connection ST -- Standby Connection
CB -- rcvd cell-bundle size bad XX -- unknown

Legend for interface status
Up -- operational
Dn -- down
Neighbor: 5.1.1.2
Interface Type St Time last up # Up trans
ge-0/0/0.2900(vc 2900) rmt OL

peter at xxx-PE1# run show l2circuit connections (ASN4321)
Layer-2 Circuit Connections:

Legend for connection status (St)
EI -- encapsulation invalid NP -- interface h/w not present
MM -- mtu mismatch Dn -- down
EM -- encapsulation mismatch VC-Dn -- Virtual circuit Down
CM -- control-word mismatch Up -- operational
VM -- vlan id mismatch CF -- Call admission control failure
OL -- no outgoing label IB -- TDM incompatible bitrate
NC -- intf encaps not CCC/TCC TM -- TDM misconfiguration
BK -- Backup Connection ST -- Standby Connection
CB -- rcvd
 cell-bundle size bad XX -- unknown

Legend for interface status
Up -- operational
Dn -- down
Neighbor: 5.1.1.1
Interface Type St Time last up # Up trans
ge-0/0/2.2900(vc 2900) rmt OL




---------------------------------------------------------------------------
| Kind Regards, |
| Peter
 Nyamukusa  |
| MCSE-2000/2003, CCIP, CCDP, CCVP, CCNP,      |
| JNCIS-ent, JNCIS-er, JNCIS-Sec, JNCIA-Ex, Linux+, A+   |
---------------------------------------------------------------------------
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