[c-nsp] PW over POS interface

[Oliver Boehmer (oboehmer)]

manomugdha biswas <> wrote on Saturday, June 25, 2005 3:24 PM:

> Hi All,
>   I am trying to establish pseudowire over POS
> interface (PE interface) of cisco router (7200) and
> ethernet as CE interface. I can establish pseudowire
> over ethernet interface (PE interface) of cisco router
> and ethernet/pos/atm as CE interface. But when I am
> using POS as PE interface on cisco router I am getting
> the following error:
> 
>    LFIB entry untagged
>    Output interface: unknown, imposed label stack {}
> 
> Initially I got the same error for ethernet as PE
> interface. I removed that error in the following way:
> 
>   lets consider the following topology
> 
> CE-----PE1-------P--------PE2---------CE
> 
> say I want to establish PW between PE1 and PE2 and PE1
> is cisco router. My application is acting as P. After
> getting the above error I advertised that for PE2, P
> (my applications address) is the next hop just after
> the basic LDP session between PE1 and P got
> established. I am doing the same thing here but PW is
> not coming up on cisco router!

I'm not really sure I understand your topology. What do you mean by "my
application is acting as P"?  What is "P"?

Some things to verify:
- do you have a targeted session between PE1 and PE2 (show mpls ldp
discovery)?
- are the loopback addresses configured as LDP router-id known and
configured as /32? I guess they are, otherwise you would not be able to
establish any PW..
- is "tag-switching ip" enabled on all PE-P interfaces?

	oli