Gentoo Archives: gentoo-user

From: Mark Knecht <markknecht@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Lots of network collisions - can I eliminate them? - SOLVED
Date: Sat, 24 Sep 2005 04:20:21
Message-Id: 5bdc1c8b0509232115658d43b3@mail.gmail.com
1 On 9/23/05, Mark Knecht <markknecht@×××××.com> wrote:
2
3 >
4 > dragonfly ~ # mii-tool -r
5 > restarting autonegotiation...
6 > dragonfly ~ # mii-tool -v
7 > eth0: autonegotiation failed, link ok
8 > product info: vendor 00:00:00, model 0 rev 0
9 > basic mode: autonegotiation enabled
10 > basic status: autonegotiation complete, link ok
11 > capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
12 > advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
13 > dragonfly ~ #
14 >
15 > OK, so something is having trouble with this negotiation stuff. I'll
16 > drag out some new cables after I send this and see what happens with
17 > that. I looked at the LinkSys switch docs again. There are no user
18 > settings that I see to get the switch to support 100Mb/S. It's
19 > supposed to be automatic.
20 >
21 > Again, thanks very much. mii-tool is very helpful. I'll also have to
22 > look at mii-diag to see if it can help with this problem.
23 >
24 > cheers,
25 > Mark
26 >
27 OK, interesting results.
28
29 1) This system has worked for a couple of months.
30
31 2) There was a small rainstorm here (SF Bay Area) on Tuesday
32 afternoon. This had a bot of lightning and, according to the paper, a
33 few peopl ehere were without power for 15 minutes.
34
35 3) On Tuesday afternoon we started having problems.
36
37 4) Looking at the logs on the NFS server I could see that it ha
38 rebooted. That machine runs without a UPS.
39
40 5) The switch is on that same plug with no UPS.
41
42 6) Over the last couple of days I've rebooted the NFS server and the
43 Myth backend server, all to better results.
44
45 7) This evening I get the bright idea to reboot the switch.
46
47 8) The switch now auto-negotiates and runs at 100Mb-FD:
48
49 dragonfly ~ # mii-tool
50 eth0: negotiated 100baseTx-FD, link ok
51 dragonfly ~ # mii-tool -v
52 eth0: negotiated 100baseTx-FD, link ok
53 product info: vendor 00:00:00, model 0 rev 0
54 basic mode: autonegotiation enabled
55 basic status: autonegotiation complete, link ok
56 capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
57 advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
58 link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
59 dragonfly ~ #
60
61 The switch was stuck in some strange state. Power down and back up fixed it.
62
63 Time to get a UPS for the media center...
64
65 Thanks for the invaluable help with mii-tool. Very, very helpful.
66
67 Cheers,
68 Mark
69
70 --
71 gentoo-user@g.o mailing list

Replies

Subject Author
Re: [gentoo-user] Lots of network collisions - can I eliminate them? - SOLVED Jonathan Wright <mail@×××××××××.uk>