Greetings Martin,

Did the customer move one of the devices to another port on the
network? Mismatched NIC (MAC address) somewhere on the network?

-- 
Virtually,
Tom Weniger

On 9/7/07, Martin Glazer <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I'm going to try and run mtr for a while and see what that comes up with.
>
> this is not a complicated network - about 35 devices connected to a new
> 48 port managed switch with another small switch connecting 5 devices
> upstairs, central Linux server and linux firewall to DSL connection. The
> issues are not related to external communications, all internal.
>
> Primary traffic on the switch is UDP and when I do netstat -su on the
> Linux server, this is what I get:
> qbx-dump # netstat -su
> Udp:
>     9684190 packets received
>     38037 packets to unknown port received.
>     130595 packet receive errors
>     9191528 packets sent
>
> The packet receive errors and the packets to unknown ports are the ones
> that concern me - doing research on the 'net points to network errors,
> so back to my original thought - that it is a network error but how do I
> track it down?
>
> Martin
>
> Tom Weniger wrote:
> > Greetings Martin,
> >
> > I agree with Shawn that the problem requires some grunt work. Start
> > off with a visual inspection of the network. Who knows if the
> > installer stapled the cat5 cable somewhere or if it was punctured by a
> > ceiling tile stringer?
> >
> >
>
>

_______________________________________________
clug-talk mailing list
[email protected]
http://clug.ca/mailman/listinfo/clug-talk_clug.ca
Mailing List Guidelines (http://clug.ca/ml_guidelines.php)
**Please remove these lines when replying

Reply via email to