Re: Loosing Ethernet Connectivity


Either that or replace the network card. Or put a dumb little 4 port
hub between the card and the switch.

it's funny but sometimes the cheaper nics have autonegotiation
issues with the better quality hubs, and don't with the cheaper hubs.

The network gods like to throw us these things from time to
time to remind us the Universe has no fundamental logic

Ted

----- Original Message -----
From: "David Schulz" <mailinglists@xxxxxxxxxxxxxxxxxxxxxxx>
To: "Ted Mittelstaedt" <tedm@xxxxxxxxxxxxxxxx>
Cc: <questions@xxxxxxxxxxx>
Sent: Sunday, January 21, 2007 9:06 PM
Subject: Re: Loosing Ethernet Connectivity


Hi,

thats harsh, because before i used a cheaper Mitsubishi, forgot the
Model, but before Christmas i purchased a Cisco ws-c2960-48tt-l ,
which i thought was not too bad for what i needed. I just cant
replace it easily now. Really, is that it? Im gonna have to go with
the cronjob / shell script option?

So sad,
David



On Jan 22, 2007, at 1:00 PM, Ted Mittelstaedt wrote:

Been there. You need to replace your ethernet switch. It's what
they call an ethernet hardware incompatability.

Forcing the card to 10baset half or 100 base t full might fix it but
probably not.

Ted
.
----- Original Message -----
From: "David Schulz" <mailinglists@xxxxxxxxxxxxxxxxxxxxxxx>
To: <questions@xxxxxxxxxxx>
Sent: Sunday, January 21, 2007 7:12 PM
Subject: Loosing Ethernet Connectivity


Hello all,

every once in a while i have a machine (6.1) that out of the blue,
sometimes after days, some after 6 months, looses Ethernet
Connectivity. My Machines just run some Service, and have no
Keyboard / Mouse or Monitor. When the Machine goes down, eg, i am
unable to ping it from another Machine on the Network, even
restarting the machine using "reboot" will not fix the Problem. The
only way to fix it is to login as root, and issue a "ifconfig vr0
down && ifconfig vr0 up". Then a dmesg Message appears : "vr0: Using
force reset command.", and after that i can successfully ping the
machine again. I have had this Problem on different machines with
different Network Cards, on different Ethernet Cables, and with
FreeBSD Versions 5.5 until 6.1.

Can anyone please help me to understand and possibly even fix this
Problem?

Thanks a lot,
David
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