[52560] in North American Network Operators' Group
Re: UUNET Routing issues
daemon@ATHENA.MIT.EDU (Petri Helenius)
Fri Oct 4 15:21:24 2002
From: "Petri Helenius" <pete@he.iki.fi>
To: "Derek Fonda" <dfonda@genuity.net>,
"Iljitsch van Beijnum" <iljitsch@muada.com>
Cc: <nanog@merit.edu>
Date: Fri, 4 Oct 2002 22:20:53 +0300
Errors-To: owner-nanog-outgoing@merit.edu
>
> In my experience, TCP deals better with packet loss than a jittery RTT
> (caused by huge buffering capability on linecards)
>
Unfortunately most people writing up SLAs have RTT measured as a very
long average (so a little bouncing around does not matter) but have quite low
packet loss targets. So they are biased towards large buffering to achive
near-zero loss. Obviously the best option is to offer different classes of
service, one providing constant latency with loss if neccessary and one
providing minimal loss with excessive buffering.
Pete
