SFP port showing "inactive"

[PLC]

Hi All i just purchased 10g SR sfp for 4510 RE switch i have and unable to cdp nei to 3750x switch I have right next to it. 

i verified i can cdp nei and see the switches from both ends when i plug a cat 6 between the both but when i plug my fiber in to my sfp 10g I cant and says in active.

any advice would be greatly appreciated.

[Reza Sharifi]

Hi,

For 10Gig you need SFP+.  If yes, are the ports in up and up mode in both switches?

sh ip int bri tex/x

HTH

[PLC]

Thanks for your reply Reza! I found out via the specs on the supervisor module that the sup 7e operating SSO has two ports disabled by default. 

Limitation and Restrictions on Supervisor Engine 7-E

Please note the following:

•When you use WS-X45-SUP7-E in RPR or SSO mode, only the first two uplinks on each supervisor engine are available. The second two uplinks are unavailable.

Thanks again!

Priscilla