Re: [nsp] Ethernet errors between 7500/PA-FE-TX and 3548XL switch

From: sthaug@nethelp.no
Date: Mon Jun 12 2000 - 13:08:51 EDT


I wrote:

> > Although it may sound odd, this is most likely an example of
> > auto-negotiation performing as designed.
>
> Unfortunately, in my case this is not the cause of the problem. I have
> the 7500/PA-FE-TX configured as a trunk, full duplex (speed is always
> 100 Mbps here, IOS won't let you configure 10 Mbps):
...
> and the 3548XL is explicitly configured as 100 Mbps full duplex:
...
> And I'm still getting CRC errors on the 3548XL.

The mystery is solved. These CRC errors are coming every 10 seconds.
Surprise surprise, if I turn off keepalives on the 7500/PA-FE-TX, the
CRC errors on the 3548XL stop.

Time for a bug report to Cisco, methinks.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no



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