I have worked for days on a problem with MPLS and VPLS.
I have 5 routers in a row. each router has a VPLS tunnel from router 1.
I can ping a 1500 byte packet thru to all the routers except to router 3.
I assume my MPLS settings are correct for MTU or else the 1500 byte packets would not get thru to routers 4 or 5.
The max size packet is 1478 to router 3.
Im pulling all the little hair I have left out.
Seems to have started after a router upgrade to 5.12 from 5.7 and 5.13 was no better.
Anyone have any ideas??
Funny thing is Its an OSPF ring, if I reroute the traffic around router 2, 1500 byte packets work to router 3!