Hi
So I have some kind of MTU problem. The setup is a Cisco on one side and a MX one the other. Between them are a 10G wavelength. MPLS, RSVP is running and the ERO of my LSP is taking the direkt path between the boxes. All interfaces on both sides are well above 8000 in MTU, MPLS MTU on Cisco and Juniper side is also above 8000. Both boxes are PE routers. If I do a ping sweep from other routers connected to Cisco-router aswell as juniper-router to respective router both can show a sweep result that is above 8000, but not the path between them. If I make a ping sweep from the juniper to the Cisco on a LSP taking the direkct path I get this: 100! 5052. 2576. 1340! 2580. 1960. 1652. 1496! 1576. 1536. 1516! 1528! 1540. 1536. 1532! --- lsp ping sweep result--- Maximum Transmission Unit (MTU) is 1532 bytes What could cause the Low MTU? Johan _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp