Date: Sun, 16 Nov 2003 13:43:26 +1100 From: Peter Jeremy <peterjeremy@optushome.com.au> To: Ceri Davies <setantae@submonkey.net>, freebsd-current@freebsd.org Subject: Re: dc still reporting collisions Message-ID: <20031116024326.GC74756@server.vk2pj.dyndns.org> In-Reply-To: <20031115202744.GG60410@submonkey.net> References: <20031115164720.I13393@hewey.af.speednet.com.au> <20031115071458.GA29973@lizzy.catnook.com> <20031115202744.GG60410@submonkey.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sat, Nov 15, 2003 at 08:27:44PM +0000, Ceri Davies wrote: These >probably are actual collisions though. The OP's point is that >collisions are supposed to be impossible on a full duplex link, >whereas in your situation they aren't. The collision mechanism is used for flow control on full-duplex links. A very high collision rate would normally indicate a half/full duplex mismatch. A low collision rate would normally indicate that the switch can't handle the load and is throttling back your system. (Other options are broken NICs and/or cables). Peter
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20031116024326.GC74756>