[c-nsp] VPLS Error Message: Output interface: if-?(0), imposed label stack {}

[Peter Rathlev]

With the LAN cards, like the 6548, you can only use subinterface or port
mode EoMPLS. Local switching (which VFIs provide) needs OSM/SPA/ES card
on the backbone side.

A "debug mpls l2transport vc event" should give you a bunch of messages
about the switch being unable to find a suitable tunnel label.

You can use a set of looped ports do provide local switching, looping
between a trunk interface and an EoMPLS port mode interface on each side
of the tunnel. But it's not very "neat". :-)

Regards,
Peter

On Wed, 2008-01-23 at 14:53 -0600, alaerte.vidali at nsn.com wrote:
> In a very simple lab setup, VPLS is not working. I am wondering if it is
> platform/hardware issue (for example WS-X6548-GE-TX issue). Any idea?
> 
> Topology:
> 
> CE1a---PE1-----PE2---CE2a
> 
> Here is result of related command:
> 
> sh mpls l2transport vc 60 det
> Local interface: VFI vlan60 VFI up
>   MPLS VC type is VFI, interworking type is Ethernet
>   Destination address: 200.222.117.41, VC ID: 60, VC status: down
>     Output interface: if-?(0), imposed label stack {}
>     Preferred path: not configured  
>     Default path: no route
>     No adjacency
>   Create time: 00:19:18, last status change time: 00:06:28
>   Signaling protocol: LDP, peer 200.222.117.41:0 up
>     Targeted Hello: 200.222.117.42(LDP Id) -> 200.222.117.41
>     MPLS VC labels: local 21, remote 16 
>     Group ID: local 0, remote 0
>     MTU: local 1500, remote 1500
>     Remote interface description: 
>   Sequencing: receive disabled, send disabled
>   VC statistics:
>     packet totals: receive 0, send 0
>     byte totals:   receive 0, send 0
>     packet drops:  receive 0, send 0
> 
> 
> Configuration:
> 
> 
> l2 vfi vlan60 manual
>  vpn id 60
>  neighbor 200.222.117.41 encapsulation mpls
> !
> interface Vlan60
>  xconnect vfi vlan60
> !
> mpls label protocol ldp
> mpls ldp discovery targeted-hello accept
> mpls ldp router-id Loopback0 force
> !
> interface Loopback0
>  ip address 10.10.10.101 255.255.255.255
> !
> Ip cef
> 
> sh ver
> Cisco IOS Software, c7600s72033_rp Software
> (c7600s72033_rp-ADVIPSERVICESK9-M), 
> Version 12.2(33)SRB2, RELEASE SOFTWARE (fc1)
> 
> 
> show module
> 
> Mod Ports Card Type                              Model
> Serial No.
> --- ----- -------------------------------------- ------------------
> -----------
>   1    2  Supervisor Engine 720 (Active)         WS-SUP720-3B
> SAD092604Y5
>   2    8  8 port 1000mb GBIC Enhanced QoS        WS-X6408A-GBIC
> SAL10489531
>   3   48  SFM-capable 48 port 10/100/1000mb RJ45 WS-X6548-GE-TX
> SAL10425G69
> 
> Mod  Sub-Module                  Model              Serial       Hw
> Status 
> ---- --------------------------- ------------------ ----------- -------
> -------
>   1  Policy Feature Card 3       WS-F6K-PFC3B       SAD09240BDE  2.1
> Ok
>   1  MSFC3 Daughterboard         WS-SUP720          SAD0925023U  2.3
> Ok
> 
> 
> Tks,
> Alaerte
> 
> 
> 
> 
> 
> 
> 
> 
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