4900M with WS-X4908-10G-RJ45

[dlance]

Just received one of these switches. My understanding is the 10G ports on the

WS-X4908-10G-RJ45 should be able to connect to a 1 G port on another switch.

However I can not get this to happpen. Using either a crossover or straight through cable.

[Reza Sharifi]

These are only 10Gig ports and not 1Gig.  So, you can't connect a 1Gig port to a 10Gig.

4900M 8 port 10GBase-T (RJ-45) half card

WS-X4908-10G-RJ45 (=)

hth

[Leo Laohoo]

I'm with Reza.

The logic behind the reason (why this line card will only run on 10Gbps) is:  WHY?

Why purchase a very expensive line card and let it run 1 Gbps when there are more affordable line cards with much, much more density.

[dlance]

The reason is why we bought the switch for our ap server to communicate with our database server. But we dont need it on our main network which is only 1 gig. We really dont need all the ports of the 20 port gig card.

[dlance]

And by the way it is possible

the command is

hw-module module 2 port-group 1 select gigabitethernet

this sets port 2/1 and port 2/2 to gig

they are both set due to the way the ASIC in the card works

yes it works