Auto negotiate problem for Gig Ethernet

[yang.h]

For Gig Ethernet on Catalyst 6500, those ports speed are 1000 and full duplex. When we try to config the SUN server's NIC port to hard code full duplex cause the port failure. The same for HP server. But if we change the NIC seting back to auto negotiate, everything working fine. Any reason why this happen?

[daniel.bowen]

I have exactly the same problem with a CAT5500 connecting to certain UNIX boxes running Solaris. I read that it is an interoperability problem between Cisco and Sun. As far as I am aware, there is no bug fix for this.

Daniel,

[mszymcza]

I hope this will explain auto-neg issues with GE

http://www.cisco.com/warp/public/473/46.html#gigabit

regards

Mirek

[yang.h]

Another doc in regards to this issue.

http://www.cisco.com/warp/public/473/103.html#subfirstthree

I have done some further test for SUN server. It shows that

negotiation SUN enalbe SUN disable

Cisco enable up, up down, down

Cisco disable down, down up, up

Thanks.