[c-nsp] ip tcp adjust-mss

[Mack McBride]

I wouldn't say it is good news.
Lots of people smoke and drink too, it doesn't make it healthy.
Long term you want to stop fragmenting.

LR Mack McBride
Network Architect

From: Eric A Louie [mailto:elouie at yahoo.com]
Sent: Monday, February 11, 2013 2:00 PM
To: Mack McBride; Cisco NSP
Subject: Re: [c-nsp] ip tcp adjust-mss

the good news is, I'm the provider network and it's my backbone.

the bad news is, I have a mixed environment, Foundry/Brocade and Cisco.

Much appreciated, Eric


________________________________
From: Mack McBride <mack.mcbride at viawest.com<mailto:mack.mcbride at viawest.com>>
To: Eric A Louie <elouie at yahoo.com<mailto:elouie at yahoo.com>>; Cisco NSP <cisco-nsp at puck.nether.net<mailto:cisco-nsp at puck.nether.net>>
Sent: Mon, February 11, 2013 12:54:50 PM
Subject: RE: [c-nsp] ip tcp adjust-mss

This is very common practice and practically everyone does it.
Usually if you have your own backbone you enlarge the backbone packet size though.
Sometimes that isn't an option due to provider switches in the path.

LR Mack McBride
Network Architect

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net<mailto:cisco-nsp-bounces at puck.nether.net> [mailto:cisco-nsp-bounces at puck.nether.net<mailto:cisco-nsp-bounces at puck.nether.net>] On Behalf Of Eric A Louie
Sent: Monday, February 11, 2013 12:56 PM
To: Cisco NSP
Subject: [c-nsp] ip tcp adjust-mss

I just put in this command on my upstream interfaces to help my mpls network pass traffic - that is, my effort to eliminate fragmentation in my backbone.

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".

thanks

Much appreciated, Eric
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