Hi Sonya
> Sonya Gilly wrote:
>
> Hi,
>
> I have configured ISL between a 2924XL switch and a 3640 router (with
> FastEthernet interfaces). Since the begining I have seen CRC input
> errors in the switch's interface with ISL although the communication
> with the two VLANs is right. There are no errors in the 3640.
See if the rate of CRC errors is about 1 each 10 seconds; if so, try to
disable keepalives in the router's native FastEthernet interface.
Cheers
Juan C. Verde
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