Jason, There is no fragmentation in MPLS. Either you can forward the packet, or it is dropped. You need to either have a larger MTU on the core (usually the way it is implemented today), or reduce MTU at both sides. As this is a L2 link, you can't use things like MSS adjust etc...
Arie -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jason LeBlanc Sent: Wednesday, October 12, 2011 20:53 To: [email protected] Subject: [c-nsp] EoMPLS ?s We're considering using EoMPLS port mode to bridge two datacenters together temporarily for a move using sup720-3BXL on both ends with 6724 blades, probably 2 or 4 gig links, possibly 10g if I can get them to buy the HW. The question I have primarily is with regard to MTU. I have heard there are issues with ensuring both sides match, not much concern there. But the network between the two facilities may be lower than the 1518 bytes, causing fragmentation. I know this gets punted to the RP, and is going to be a problem. Is there any work around? Thanks, Jason _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
