icmp performance vs. traceroute/tcptraceroute, ssh, ipsec

Jo Rhett jrhett at
Mon May 7 17:55:06 UTC 2007

On May 6, 2007, at 6:07 PM, Joe Maimon wrote:
> Of course, and thats why I have cut down ip mtu and tcp adjust mss  
> and all the rest.
> Not making much of a difference.

Um.. sorry if you mean more than you said, but where did you cut down  
the TCP MTU?   If you did it on your routers, then you are creating  
or at least complementing the problem.

The only way to make smaller MTUs work is to alter the MTU on both  
the origin and destination systems.  Altering the MTU anywhere along  
the path only breaks things.

Jo Rhett
senior geek

Silicon Valley Colocation
Support Phone: 408-400-0550

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