Loosing Ethernet Connectivity

[Ted Mittelstaedt]

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 at tca-cable-connector.com>
To: "Ted Mittelstaedt" <tedm at toybox.placo.com>
Cc: <questions at freebsd.org>
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 at tca-cable-connector.com>
> > To: <questions at freebsd.org>
> > 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
> >> _______________________________________________
> >> freebsd-questions at freebsd.org mailing list
> >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> >> To unsubscribe, send any mail to
> > "freebsd-questions-unsubscribe at freebsd.org"
> >>
> >
> > _______________________________________________
> > freebsd-questions at freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> > To unsubscribe, send any mail to "freebsd-questions- 
> > unsubscribe at freebsd.org"
> 
>