[c-nsp] ip tcp adjust-mss

Mack McBride mack.mcbride at viawest.com
Mon Feb 11 19:19:35 EST 2013

Most UDP should not hit the MTU limitation.
The common ones that come to mind are streaming audio/video and DNS.

LR Mack McBride
Network Architect

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Ge Moua
Sent: Monday, February 11, 2013 5:03 PM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] ip tcp adjust-mss

For UDP, one would have to do something like touch the end-hosts and adjust mtu size on the ip_stack itself.  Not very scalable and may require too much touch-points (also would be somewhat permanent).

Some client vpn shims do this to end-hosts after installations of said software.

Ge Moua
Univ of Minn Alumnus

On 02/11/2013 02:25 PM, Peter Rathlev wrote:
> TCP MSS adjusting only works for TCP and probably puts an extra load 
> on the CPU of the router.
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