CRC Errors

[Dino Mendoza]

I am receiving CRC errors with the following configuration when attempting a 1GB/S connection (100MB/S connection is fine). I am able to get a link between the two devices but no communication is present (unable to ping server.) I have tried changing the cabling and also manually configuring the ports instead of Auto.

ML530 server w/ NC7131 NIC
3Com 3824 switch
Cat5e cabling

Has anyone come across this issue? Any help would be appreciated.

Thanks.

[Gus Kwong]

Hi Dino,

Not entirely sure, but assuming your cables are definitely ok for GBit connection (plus you have mentioned about link-connection was ok but produced CRC error), the first thing popped in my head is the setting of Full-Duplex...

Can you confirm both devices are manually set for the same speed and Full-Duplex (etc)? It may be ideal to do a shutdown on devices' NICs and then re-enable them.

Also, if you have privilge access to 3com Switch, it may be ideal to manually set the gigabit interface to Full Duplex at the same speed too.

Cheers

Gus