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RE: L2Circuit - Cisco Juniper Interoperability

  • From: sthaug@nethelp.no
  • Date: Thu, 30 Sep 2004 22:04:57 +0200
  • Cc: mpls-ops@mplsrc.com
  • Resent-Date: Thu, 30 Sep 2004 16:39:30 -0400

> Hmmmmmm..........  OOPS! Not quite working.
> 
> On the Juniper side, everything looks great.  Cisco still reports the tunnel 
> as down.

Have you made the Martini tunnel to use the LSP (your Tunnel1)? Either
by using a pseudowire-class for the xconnect:

pseudowire-class l2c
 encapsulation mpls
 preferred-path interface Tunnel1 disable-fallback
!
interface FastEthernet0/1/0.5
 encapsulation dot1Q 55
 xconnect 4.4.4.4 55 pw-class l2c

or by using "tunnel mpls traffic-eng autoroute announce" on Tunnel1.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no

> 
> Cisco:
> PE.JFK#show mpls l2transport vc 55 detail
> Local interface: Fa0/1/0.5 up, line protocol up, Eth VLAN 55 up
>   Destination address: 4.4.4.4, VC ID: 55, VC status: down
>     Preferred path: Tunnel1,  entry had no valid path
>     Default path: disabled
>     Output interface: unknown, imposed label stack {}
>   Create time: 00:08:34, last status change time: 00:04:27
>   Signaling protocol: LDP, peer 4.4.4.4:0 up
>     MPLS VC labels: local 22, remote 102496
>     Group ID: local 0, remote 0
>     MTU: local 1500, remote 1500
>     Remote interface description:
>     Remote VLAN id: 55
>   Sequencing: receive disabled, send disabled
>   Sequence number: receive 0, send 0
>   VC statistics:
>     packet totals: receive 0, send 0
>     byte totals:   receive 0, send 0
>     packet drops:  receive 0, seq error 0, send 0
> 
> 
> Juniper:
> codaware@PE.SFO> show l2circuit connections extensive
> 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          XX -- unknown
> NC -- intf encaps not CCC/TCC
> CB -- rcvd cell-bundle size bad
> 
> Legend for interface status
> Up -- operational
> Dn -- down
> 
> Neighbor: 28.28.28.28
>     Interface                 Type  St     Time last up          # Up trans
>     fe-0/1/0.5(vc 55)         rmt   Up     Sep 28 21:41:54 2004           1
>       Local interface: fe-0/1/0.5, Status: Up, Encapsulation: VLAN
>       Remote PE: 28.28.28.28, Negotiated control-word: Yes (Null)
>       Incoming label: 102496, Outgoing label: 22
>         Time                  Event                   Interface/Lbl/PE
>         Sep 28 21:41:54 2004  status update timer
>         Sep 28 21:41:52 2004  PE route changed
>         Sep 28 21:41:52 2004  Out lbl Update                        22
>         Sep 28 21:41:52 2004  In lbl Update                     102496
>         Sep 28 21:41:52 2004  loc intf up                   fe-0/1/0.5
> 
> 
> 
> 
> Thanks,
> David
> 
> 
> 
> 
> >From: "David Carver" <david_a_carver@hotmail.com>
> >To: r.amos@zahav.net.il
> >CC: mpls-ops@mplsrc.com
> >Subject: RE: [MPLS-OPS]: L2Circuit - Cisco Juniper Interoperability
> >Date: Mon, 27 Sep 2004 22:18:54 +0000
> >
> >Thanks!  It worked.
> >
> >I changed the l2circuit to be between loopback interfaces and it all works 
> >now.
> >
> >(Regarding the IP addresses - that is another oops... ;)  - Thanks!)
> >
> >David
> >
> >
> >>From: "Amos Rosenboim" <r.amos@zahav.net.il>
> >>To: "David Carver" <david_a_carver@hotmail.com>
> >>Subject: RE: [MPLS-OPS]: L2Circuit - Cisco Juniper Interoperability
> >>Date: Tue, 28 Sep 2004 00:03:57 +0200
> >>
> >>Couple of comments that I cannot say for sure that are relevant
> >>specifically to this problem but they might are:
> >>Why is the l2circuit configuration not between loopback interfaces ip
> >>addresses? It's a good practice to initiate such sessions (ldp sessions
> >>actually) from a loopback.
> >>
> >>Second issue - according to the configs you sent the routers are on the
> >>same ethernet segments but are configured with different subnetmasks -
> >>/16 for the juniper and a /24 for the cisco. This has probably nothing
> >>to do with the problem but anyway it's not so good.
> >>
> >>Amos
> >>
> >>
> >>-----Original Message-----
> >>From: David Carver [mailto:david_a_carver@hotmail.com]
> >>Sent: Monday, September 27, 2004 11:57 PM
> >>To: Amos Rosenboim; mpls-ops@mplsrc.com
> >>Subject: RE: [MPLS-OPS]: L2Circuit - Cisco Juniper Interoperability
> >>
> >>
> >>OOPS!
> >>
> >>Here is the l2circuit config from the Juniper:
> >>
> >>l2circuit {
> >>     neighbor 166.164.4.17 {
> >>         interface ge-0/2/0.5 {
> >>             virtual-circuit-id 55;
> >>         }
> >>     }
> >>}
> >>
> >>Thanks,
> >>David
> >>
> >> >From: "Amos Rosenboim" <r.amos@zahav.net.il>
> >> >To: "David Carver" <david_a_carver@hotmail.com>,<mpls-ops@mplsrc.com>
> >> >Subject: RE: [MPLS-OPS]: L2Circuit - Cisco Juniper Interoperability
> >> >Date: Mon, 27 Sep 2004 23:51:06 +0200
> >> >
> >> >Hi,
> >> >
> >> >First you didn't enclose any l2circuit configuration from the juniper
> >> >side.
> >> >From looking at the cisco show command outputs you can clearly see that
> >> >the direct ldp session between the routers is down.
> >> >Try and debug ldp adjacency on either side.
> >> >Since I didn't see the l2circuit config for the juniper I could not
> >>tell
> >> >weather it's configured ok. The cisco config looks just fine.
> >> >
> >> >Hope this helps somewhat.
> >> >
> >> >Amos
> >> >
> >> >
> >> >-----Original Message-----
> >> >From: David Carver [mailto:david_a_carver@hotmail.com]
> >> >Sent: Monday, September 27, 2004 11:08 PM
> >> >To: mpls-ops@mplsrc.com
> >> >Subject: [MPLS-OPS]: L2Circuit - Cisco Juniper Interoperability
> >> >
> >> >Hello All,
> >> >
> >> >Would really appreciate any help on this...
> >> >
> >> >I am trying to conifgure a l2circuit between Juniper and Cisco with no
> >> >luck.
> >> >   I get the following output:
> >> >
> >> >Juniper:
> >> >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          XX -- unknown
> >> >NC -- intf encaps not CCC/TCC
> >> >CB -- rcvd cell-bundle size bad
> >> >
> >> >Legend for interface status
> >> >Up -- operational
> >> >Dn -- down
> >> >
> >> >Neighbor: 166.164.4.17
> >> >     Interface                 Type  St     Time last up          # Up
> >> >trans
> >> >     ge-0/2/0.5(vc 55)         rmt   OL
> >> >
> >> >Cisco:
> >> >PE.JFK#show mpls l2transport vc 55 detail
> >> >Local interface: Fa0/1/0.5 up, line protocol up, Eth VLAN 555 up
> >> >   Destination address: 166.164.4.16, VC ID: 55, VC status: down
> >> >     Preferred path: Tunnel1,  entry had no valid path
> >> >     Default path: disabled
> >> >     Output interface: unknown, imposed label stack {}
> >> >   Create time: 00:25:42, last status change time: 00:25:42
> >> >   Signaling protocol: LDP, peer 166.164.4.16:0 down
> >> >     MPLS VC labels: local 17, remote unassigned
> >> >     Group ID: local 2, remote unknown
> >> >     MTU: local 1500, remote unknown
> >> >     Remote interface description:
> >> >   Sequencing: receive disabled, send disabled
> >> >   Sequence number: receive 0, send 0
> >> >   VC statistics:
> >> >     packet totals: receive 0, send 0
> >> >     byte totals:   receive 0, send 0
> >> >     packet drops:  receive 0, seq error 0, send 0
> >> >
> >> >
> >> >
> >> >My configuration is as follows:
> >> >
> >> >Juniper:
> >> >interfaces {
> >> >     ge-0/2/0 {
> >> >         vlan-tagging;
> >> >         encapsulation vlan-ccc;
> >> >         unit 0 {
> >> >             vlan-id 3;
> >> >             family inet;
> >> >             family iso;
> >> >             family mpls;
> >> >         }
> >> >         unit 5 {
> >> >             encapsulation vlan-ccc;
> >> >             vlan-id 555;
> >> >         }
> >> >     }
> >> >     fe-0/1/2 {
> >> >         unit 0 {
> >> >             enable;
> >> >             family inet {
> >> >                 address 166.164.4.16/16;
> >> >             }
> >> >             family iso;
> >> >             family mpls;
> >> >}
> >> >protocols {
> >> >     ldp {
> >> >         interface all;
> >> >     }
> >> >}
> >> >
> >> >Cisco:
> >> >ip cef
> >> >mpls label protocol ldp
> >> >mpls traffic-eng tunnels
> >> >pseudowire-class aaa
> >> >encapsulation mpls
> >> >preferred-path interface Tunnel1 disable-fallback
> >> >!
> >> >interface FastEthernet0/0/0
> >> >ip address 166.164.4.17 255.255.255.0
> >> >no ip directed-broadcast
> >> >ip router isis
> >> >media-type MII
> >> >full-duplex
> >> >mpls label protocol ldp
> >> >mpls traffic-eng tunnels
> >> >tag-switching ip
> >> >!
> >> >interface FastEthernet0/1/0
> >> >ip address 10.10.10.28 255.255.255.0
> >> >no ip directed-broadcast
> >> >media-type MII
> >> >mpls label protocol ldp
> >> >tag-switching ip
> >> >no clns route-cache
> >> >!
> >> >interface FastEthernet0/1/0.5
> >> >encapsulation dot1Q 555
> >> >no ip directed-broadcast
> >> >xconnect 166.164.4.16 55 pw-class aaa
> >> >!
> >> >
> >> >I do have two tunnels going from the Cisco to the Juniper and
> >>vice-versa
> >> >
> >> >(destination of each tunnel is the ip address on the loopback).
> >> >
> >> >Any clues???
> >> >
> >> >Thanks,
> >> >David
> >> >
> >> >_________________________________________________________________
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