NSE-150 Gigabitethernet Interface

Answered Question
Sep 10th, 2008

This port is set to negotation auto. Will it negotiate 100 Mbps if the other end is a FastEthernet interface? The NSE gig0 port will connect to a 7206 100M interface

I have this problem too.
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catotten Wed, 09/10/2008 - 11:10

So then why the "negotiation auto" on the interface configuration?

Edison Ortiz Wed, 09/10/2008 - 11:18

What's the point of having the speed option, if you are only allowed to have one speed?



Giuseppe Larosa Thu, 09/11/2008 - 03:07

Hello Carol,

speed isn't the only parameter that can be negotiated on a GE link: for example there is flow control.

the rule of thumb is the following: if the port uses GBICs of any type the speed is fixed to 1000 Mbps, if the port has its own RJ-45 connector it can be 10/100/1000.

Hope to help



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