Re: TCP packet out-of-order problem

2009-01-01 Thread Lin Jui-Nan Eric
Dear All listers, After running "netstat -s -p tcp", we found that lots of packets are discarded due to memory problems. We googled for it, and found that sysctl oid "net.inet.tcp.reass.maxsegments" became 0, therefore packets never reassembled. Then we checked our /boot/loader.conf and /etc/sysc

TCP packet out-of-order problem

2009-01-01 Thread Lin Jui-Nan Eric
Dear listers, We recently found our new FreeBSD server (located in some foreign region) has poor network performance. After doing some tcpdump and iperf testing, we found that out-of-order TCP packets are not inserted into queue. This is an 100Mbps line, and TSO is disabled. % uname -a FreeBSD b

RE: SCTP related issue with recent ARP changes?

2009-01-01 Thread Li, Qing
Hi Michael, Your problem could be related to the recent ARP changes. I will investigate further to confirm. Thanks, -- Qing -Original Message- From: owner-freebsd-...@freebsd.org on behalf of Michael Tüxen Sent: Thu 1/1/2009 8:59 AM To: FreeBSD Net Subject: SCTP related issue with re

SCTP related issue with recent ARP changes?

2009-01-01 Thread Michael Tüxen
Dear all, I'm running the current CVS version of FreeBSD 8 in a virtual machine using VMWare 2.0.1 on a Mac (not sure if this is relevant) and bridged networking having an em interface on the virtual machine. I'm using a similar setup with older FreeBSD machines and they are running fine. Loopba