From: sunlist (sun@oryx.cc)
Date: Wed Aug 10 2005 - 10:41:40 EDT
Update/thank you
I wanted to thank everyone who has replied with suggestions so far.
I have had a couple of replies which discussed duplex issues. Why I have seen
these in other instances, I do not see any duplex issues occurring in my issue,
only the dmfe0 interface is flapping up and down. Both sides (Cisco and Sun)
look fine and are not having any type of errors, netstat -ni shows no errors.
This system was acquired in May 2005 and ran fine for several months. When this
problem first showed up, the interface was flapping every 5 seconds. From
research I did on my own, I found this patch (116561-06) on SunSolve. This
patch went a long way to resolving the issue. After applying this patch, the
interface patching went from flapping every 5 seconds to 12-15 times an hour.
From suggestions I received, I have tried the following:
* tried different network cables
* hard coded both the Cisco and Sun interfaces to 100 Mb / Full Duplex
* different switch port
* different switch
None of this has made any change, either for better or worse.
Late Tuesday afternoon, I moved from V100 interface dmfe0 to dmfe1. As of this
morning, I have yet to see any interface flapping on dmfe1.
Thank you again for all of the replies.
Jerry K
-------- Original Message --------
Subject: v100 and flapping dmfe0 ethernet interface
Date: Mon, 08 Aug 2005 15:40:07 -0500
I have a Sun V100 system running Solaris 9 plus a cluster patch from late May
2005. The dmfe interface that is constantly going up and down.
The system is attached to a Cisco 2950. Both ends are auto-negotiating 100Mb
and full duplex. I do not see any network errors either on the Cisco side or
the Sun side.
I am getting this in the /var/adm/messages file:
Aug 8 14:01:02 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link up
100 Mbps Full-Duplex
Aug 8 14:01:03 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link down
Aug 8 14:01:06 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link up
100 Mbps Full-Duplex
Aug 8 14:17:41 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link down
Aug 8 14:17:44 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link up
100 Mbps Full-Duplex
Aug 8 14:19:25 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link down
Aug 8 14:19:29 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link up
100 Mbps Full-Duplex
Aug 8 14:49:57 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link down
Aug 8 14:50:01 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link up
100 Mbps Full-Duplex
Aug 8 14:50:11 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link down
Aug 8 14:50:15 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link up
100 Mbps Full-Duplex
Aug 8 14:58:24 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link down
Aug 8 14:58:28 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link up
100 Mbps Full-Duplex
Aug 8 14:59:43 v100b dmfe: [ID 801593 kern.notice] NOTICE: dmfe0: PHY 1 link down
-----------------------------------------------------------------
I found these link in an effort to resolve my issue from a yahoo search:
http://www.sunmanagers.org/pipermail/sunmanagers/2005-January/034332.html
http://www.webservertalk.com/archive103-2004-6-259199.html
http://www.sunmanagers.org/pipermail/sunmanagers/2003-December/027343.html
http://usenet2.best-buy-online.com/Dir10/File276.html
-=-=-=-=-=-=-=-
I also poked around sunsolve and found patch 116561-06 which addressed these
issues:
4643212 dmfe driver should be GLD v2 "compliant"
4646439 dmfe driver should support Davicom DM9102A rev 9
4463714 DM9102A (-6) chip can overrun buffers even after SW reset of MAC
4498135 dmfe0: PHY 1 Link down / up reported on console
-----------------------------------------------------------------
I applied this patch and did help quite a bit. Prior to this patch, the
interface was cycling every 5 seconds. It is now flapping about 12 times an hour.
-=-=-=-=-=-=-=-=-
It appears that this is a not-uncommon problem for systems that use the dmfe
interface, but I haven't come across any post that indicate that they resolved
it or how they did it.
TIA for any replies, I will summarize with my solution.
Jerry K
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