nether.net [204.42.254.5]); Thu, 12 Jul 2007 15:18:21 -0400 (EDT) Sender: owner-nanog@merit.edu Precedence: bulk Errors-To: owner-nanog@merit.edu X-Loop: nanog X-Junkmail-Status: score=10/50, host=mozart.merit.edu X-Junkmail-SD-Raw: score=unknown, refid=str=0001.0A090201.46967FCA.0145:SCGAP167720,ss=1,fgs=0, ip=198.108.1.26, so=2006-09-22 03:48:54, dmn=5.3.14/2007-05-31 Status: RO X-Status: X-Keywords: NonJunk X-UID: 13 On Thu, Jul 12, 2007 at 11:07:00AM -0700, Philip Lavine wrote:

Can someone explain how a TCP conversation could degenerate into congestion av

oidance on a long fat pipe if there is no packet/segment loss or out of order se gments?

Here is the situation: WAN = 9 Mbps ATM connection between NY and LA (70 ms delay)

Do you know there is no cell loss on your ATM path? Have you also accounted for SAR overhead? Do you know if they use any sort of cell-chaining technology in their network to reduce overhead? - Jared -- Jared Mauch | pgp key available via finger from jared@puck.nether.net clue++; | http://puck.nether.net/~jared/ My statements are only mine.