Im having an ongoing problem with either MPLS or VPLS breaking down intermittently, once every few days.
I use LDP for distribution, maybe TE tunnels would help instead of LDP?
I cant wrap my head around how TE tunnels work.
Take this network diagram:
So I have a VPLS tunnel for each Router that needs to transport PPPoE Sessions down the line to the core.

Is it possible to have a single VPLS tunnel down the line with an single ID that each router would connect to?
Is this more efficient? Basically one VPLS tunnel down each network segment.

I cant for the life of me figure out why it just all dies occasionally, Ive set up my MPLS with LDP nearly identical to the wiki example. EoIP did not exhibit this behaviour. When it dies its just for a moment.
Is it possible the MPLS/VPLS is not suited for use over wireless backhauls ?
I have 3 network segments that both exhibit similar behavior each connected by their own independent wireless backhaul from the core router. out of the 3 network segments, each one can exhibit the failure of the PPPoE sessions in the VPLS tunnels at different times individually. Usually once every 3-4 days

Would TE Tunnels be better suited?

It seems my problem is OSPF.

For the first time ever it happened in front of me. I was able to see the logs
and I have to set up NBMA neighbors for OSPF

Inssomniak, did you fix the problem? what was wrong? did NBMA neighbours help?

thanls

I'm also interested in finding out if/how this was resolved.

Thanks,



Andrew

Yes my problem was resolved with NBMA neighbor used over any of my wireless links where OSPF was run over instead of a broadcast network type.
Little more complicated to set up, but works well.