NSE-150 Gigabitethernet Interface

[catotten]

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

[Edison Ortiz · Accepted solution]

No, it won't.

According to the Data Sheet:

http://www.cisco.com/en/US/prod/collateral/routers/ps352/product_data_sheet0900aecd8060aa7a.html

This product only support these SFP GBICs:

http://www.cisco.com/en/US/docs/routers/7200/install_and_upgrade/gbic_sfp_modules_install/5067g.html

HTH,

__

Edison.

[catotten]

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

[Edison Ortiz]

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

__

Edison.

[Giuseppe Larosa]

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

Giuseppe