dkelly at hiwaay.net
Mon Mar 31 07:06:53 PST 2003
On Mon, Mar 31, 2003 at 08:20:34AM -0600, Jack L. Stone wrote:
> For the first time within the past few days, I've noticed collisions being
> reported on the public NIC for one of the servers. I'm not sure if it means
> the switch or the NIC is the culprit, so not sure which component may need
> to be replaced.
> Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
> rl1 1500 <Link#2> 00:40:33:5b:bb:5f 6816063 0 7494432 0 66977
Lets see, 67e3 packets had to be retried within their first 64 octets
out of 7.5e6 sent. Actually thats pretty darn good. But ideally if you
are connected to a full duplex switch it should not happen. "Ideally".
I have no idea how a switch behaves when its caches are momentarily full
but I would guess forcing a "collision" might be a politer means with
faster recovery to back off senders than to simply drop the packet.
Then again a RealTek NIC is the scum at the bottom of the NIC bucket.
David Kelly N4HHE, dkelly at hiwaay.net
The human mind ordinarily operates at only ten percent of its
capacity -- the rest is overhead for the operating system.
More information about the freebsd-questions