Ok, maybe I'm missing the obvious, but within my backbone, I can't just increase the MTU across the Ethernet links.
router (config-if)#ip mtu ? <68-1500> MTU (bytes) Unless this is the mtu you refer to router (config-if)#mtu ? <1500-9800> MTU size in bytes Much appreciated, Eric ________________________________ From: Saku Ytti <s...@ytti.fi> To: cisco-nsp@puck.nether.net Sent: Mon, February 11, 2013 12:33:53 PM Subject: Re: [c-nsp] ip tcp adjust-mss On (2013-02-11 11:56 -0800), Eric A Louie wrote: > Is anyone else using this method of "mtu control"? I need some support - my >CEO > > is asking why I have to do this, and who else does it, and is it a common > practice, etc, so I'm looking for evidence, more than just "The Cisco TAC > told > me to do it". Very common hack to deal when tunneling is involved in middle of the network, and reducing client MTU is not practical. But I'm really surprised you'd need it in this situation, usually you can increase your core MTU to carry MPLS labels while still delivering customers 1500B. Mostly while quite ugly hack, it just works. Sometimes you run into some poor application which send MTU size UDP frames and expect them to be delivered, those customers would not be happy. -- ++ytti _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/