From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <0113a037afb5d6a94f6fb107a4fadb28@plan9.bell-labs.com> From: presotto@plan9.bell-labs.com To: 9fans@cse.psu.edu MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: [9fans] kernel updates Date: Tue, 16 Jul 2002 15:49:54 -0400 Topicbox-Message-UUID: ce392f0a-eaca-11e9-9e20-41e7f4b1d025 I've copied a scad of changes onto the sources machine. In particular - I've hacked the hell out of TCP to get rid of all the anomalies I could find. > The problem LANL was having with throughput dropping off drasticly with write size is gone. > we no longer do lots of needless retransmissions > IP CPU overhead is down (took out some high rollers) - I've added SYN attack defenses. I used the low state model rather than the SYN cookie one. - a defense for NAPTHA DOS attacks from Dong Lin. I don't think I've picked up any works in progress. I still want to add scalable TCP windows but ran out of time. I'll do it in a few weeks. It might help with GB ethernet.