Dear all, we are trying to establish an uplink to a Cisco 2960 (48 ports of Gb Ethernet and two 10 Gb Ethernet SFP+ ports). At the Blade site there is one IBM
10 GBE 850nm SFP+ Transceiver (CRU 44W4408) in the first slot of the CVR-X2- SFP and at the Cisco 2960 site we used the CISCO SFP+ 10 Gb transceiver. But there is no link (electrical contact). What can we do next?Many thanks for any hints! Rainer
Have you checked the switches on both sides to make sure that the devices recognize the SFPs you've inserted, and haven't kicked them out for whatever odd reason that they will?
ie. show log show int te 0/1 capabilities
A small progress: We replaced the 10(!) Gb SFP+ Transceiver in the CVR- X2-SFP V02 converter by
a 1 (ONE) Gb SFP and connected it to a 1Gb port of our 2960 switch. Now we have a link I mean there
is now the green light on at the 2960 port.
But still we can't communicate from outside with one of our blades. We are also worry about the fact not
to see the 3110x 10Gb external uplink port by the Cisco Network Assistant. There are only 16 Gb ports
plus 1x fa0. Very strange.
Regards, Rainer
The CVR-X2-SFP is designed to adapt 10G X2 ports in specific cisco switches to take one or two SFPs (1 gig), NOT SFP+ (10 gig), so I don't think that will work.
See
If you've got an X2 slot, you'll need an X2 tranceiver if you want 10 gig.
Best,
Replying to self -
Or one of these
So long as what you're plugging it into supports it...
Best,
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