nanog mailing list archives

Re: Weird networking issue.


From: Scott Granados <scott () wworks net>
Date: Tue, 7 Jan 2003 11:07:28 -0800 (PST)


Hi there, no that is not normal.  How long is the cat5 between the two?

Also, with a hub you should normally see collisions but not crc errors.


On Tue, 7 Jan 2003, Drew Weaver wrote:


Hi, this is kind of a newbie question but this doesn't make a whole lot of
sense :P

I have an etherstack hub connected to a FastEthernet port on a cisco 3660
router, these are the stats when I do a show int fast0/0:

5776 input errors, 5776 CRC, 2717 frame, 0 overrun, 0 ignored

Whats weird is I just cleared the counters 12 minutes ago, and already there
are almost 6000 CRC errors. This connected via a standard Cat5 ethernet
cable, I have tried replacing the cable to noavail.

Is this a fairly normal situation, If so that's great, but it seemed rather
ridiculous to me, and if it is not a normal situation, what would cause
this?

Any ideas are appreciated.
Thanks,
-Drew Weaver



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