Cisco 11.3 - Force full Duplex 100

[phumler]

How can I force the router into full dulex mode at 100 mb?

I tried the following steps:

>enable
#config terminal
(config)#int eth 0/0
(config-if)#...tried various command here with no luck...i'm stuck.

 

[Andyleates]

Speed 100
duplex full

Andy

Andy Leates MCSE CCNA MCP+I

 

[phumler]

Thanks for the quick response Andy. I had tried this command before, but it is not recognized. Am I at the wrong point in the configuration (config-if...see above)?

 

[Andyleates]

No, you are in the correct mode. Perhaps you model of router / the interface does not support it?

Can you do a "speed ?" or a "duplex ?" at the prompt to see what options you have? Should see something like:

SHGTSSXXROCI353(config-if)#speed ?
10 Force 10 Mbps operation
100 Force 100 Mbps operation
auto Enable AUTO speed configuration

SHGTSSXXROCI353(config-if)#duplex ?
auto Enable AUTO duplex configuration
full Force full duplex operation
half Force half-duplex operation

Andy Leates MCSE CCNA MCP+I

 

[phumler]

Yeah...I tried doing a speed ? or duplex ?, but it doesn't recognize them. I think it is an issue with the version of IOS or something with the interfaces. Really frustrating.

 

[Andyleates]

What is the router model? I think your IOS version is OK.

Andy Leates MCSE CCNA MCP+I

 

[phumler]

It is a 2611 running 11.3.

 

[Andyleates]

OK, that's your problem. 2611 routers only have 10Mb/s ports as standard. You may find this google article useful.

http://groups.google.co.uk/groups?h...selm=915n8u%24n9o%241%40nnrp1.deja.com&rnum=2

Andy Leates MCSE CCNA MCP+I

 

[phumler]

Yep...that would be my problem. Thanks for your help Andy!