Auto-Negotiate Negotiating to 10?

[RGill94]

Hello,

I have one switch that is auto-negotiating to 10 mbps (a-10) and I am curious as to why it is doing this. I have tried to separate laptops on two different ports and they keep negotiating to 10 mbps.

Now I have another 3560 switch with the same negotiation settings configured and it is negotiating 1000 mbps for the same laptops.

Does anybody know why this would occur?

[matthew-frederick]

Do both switches have the exact same ios and and exact same configs?

[RGill94]

Both switches are currently running 12.2(25) and have the same config for the switch ports.

[glen.grant]

     Using the same cables for both tests ?   Also on the one you are having trouble  look at the running config and make sure the ports don't have the setting  "speed auto 10"  configured , this limits the speed at which it will autonegotiate. The only things I can think of that would cause something like that .  Reinput the port settings  on the switch as "speed auto "  .

[RGill94]

The running-config does not show "speed auto 10" under the swtich ports. Are there any other factors that would limit the speed negotiation on a switch port?

[Peter Paluch]

Hi,

I wonder - what duplex setting does the switch negotiate along with the 10Mbps speed? Can you actually post the full configuration of the port that negotiates to 10M only?

Best regards,

Peter

[RGill94]

Just tested it out again on both switches. Seems it is negotiating 10 on every switch I plug into, I must have misread the int status.

Other computers are able to pull 1 gig just fine so it must be unique to the chipset.

Thanks!