nanog mailing list archives
Re: UUNET Routing issues
From: Iljitsch van Beijnum <iljitsch () muada com>
Date: Fri, 4 Oct 2002 00:00:30 +0200 (CEST)
On Thu, 3 Oct 2002, Marshall Eubanks wrote:
Where are they diverting it to, the Moon (1.5 light seconds away) ?
Really - I have seen some multisecond latencies on network links we were testing, and I always wondered how these could come to be.
Good question. Cisco routers use a default queue size of 40 packets. That will give you a ~2 second delay on a 128 kbps line. I seem to remember that during my tour of duty at UUNET we had slightly faster lines... But that was back in the good old days when life was good. At 155 Mbps you need 32 MB worth of buffer space to arrive at a delay like this. I wouldn't put it past ATM vendors to think of this kind of over-enthusiastic buffering as a feature rather than a bug. Does anyone have any thoughts on optimum buffer sizes?
Current thread:
- Re: UUNET Routing issues, (continued)
- Re: UUNET Routing issues Manolo Hernandez (Oct 03)
- Re: UUNET Routing issues Patrick_McAllister (Oct 03)
- Re: UUNET Routing issues Eric Whitehill (Oct 03)
- RE: UUNET Routing issues Brennan_Murphy (Oct 03)
- Re: UUNET Routing issues sigma (Oct 03)
- Re: UUNET Routing issues Chris Adams (Oct 03)
- Re: UUNET Routing issues Matt Levine (Oct 03)
- Re: UUNET Routing issues Vinny Abello (Oct 03)
- Re: UUNET Routing issues Marshall Eubanks (Oct 03)
- Re: UUNET Routing issues Jared Mauch (Oct 03)
- Re: UUNET Routing issues Iljitsch van Beijnum (Oct 03)
- Re: UUNET Routing issues Petri Helenius (Oct 03)
- Re: UUNET Routing issues Iljitsch van Beijnum (Oct 04)
- UUNET is not the Internet (and neither is AOL) Sean Donelan (Oct 04)
- Re: UUNET is not the Internet (and neither is AOL) Tim Thorne (Oct 05)
- Re: UUNET is not the Internet (and neither is AOL) Sean Donelan (Oct 05)
- Message not available
- Re: UUNET is not the Internet (and neither is AOL) Vicky O. Mair (Oct 06)
- Re: UUNET is not the Internet (and neither is AOL) alex (Oct 07)
- Re: UUNET is not the Internet (and neither is AOL) Sean Donelan (Oct 07)
- RE: UUNET is not the Internet (and neither is AOL) Cleve Mickles (Oct 07)
- Re: UUNET is not the Internet (and neither is AOL) Jared Mauch (Oct 07)
- Re: UUNET Routing issues sigma (Oct 03)