Date: Wed, 02 Oct 1996 02:13:12 -0700 From: David Greenman <dg@root.com> To: Rowan Crowe <rowan@ozramp.net.au> Cc: bugs@FreeBSD.org Subject: Re: Possible low level TCP bug Message-ID: <199610020913.CAA06758@root.com> In-Reply-To: Your message of "Wed, 02 Oct 1996 19:00:08 %2B1000." <Pine.LNX.3.91.961002185805.32199A-100000@ozramp>
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>Here's another capture for you, this time coming from a remote IRC >server, being routed to a SLIP link. My FreeBSD box is not in the path, >but the remote end (dropbear.aussie.net) runs FreeBSD. > > >Wed Oct 02 18:54:43 1996 - sl0 sent: >IP: len 140 203.20.52.13->203.30.11.132 ihl 20 ttl 63 tos 8 prot TCP >TCP: 6668->1026 Seq x7c07420 Ack xbe4b006e ACK PSH Wnd 8576 Data 100 >0000 :aussie.sydney.oz.org 332 rowan #newbies :learn irc language fro >0040 m http://newbies.aussie.net/..:aussi > >Wed Oct 02 18:54:44 1996 - sl0 recv: >IP: len 40 203.30.11.132->203.20.52.13 ihl 20 ttl 60 prot TCP >TCP: 1026->6668 Seq xbe4b006e Ack x7c07484 ACK Wnd 3996 > >Wed Oct 02 18:54:44 1996 - sl0 sent: >IP: len 88 203.20.52.13->203.30.11.132 ihl 20 ttl 63 tos 8 prot TCP >TCP: 6668->1026 Seq x7c07484 Ack xbe4b006e ACK PSH Wnd 8576 Data 48 >0000 e.sydney.oz.org 333 rowan #newbies Z 844233027.. > > >Something important to note, is that the split occurred at the same >number of characters (about 100). This is likely caused by IRC doing short writes to the socket (the fact that PUSH is set is a good indicator of this). I don't know why it would be doing that, but it's not a bug in FreeBSD. In my previous response, I was only concerned with the long delays you were seeing - not in the multiple small packets. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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