06-08-2011 05:16 AM - edited 03-07-2019 12:42 AM
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
06-08-2011 07:30 AM
Rainer,
Are you using MM SPF and MM X2 at the chassis or SM? Are you using the correct fiber patch?
since the 2960 is SFP+ and the chassis is X2 type optic, you need an LC to SC patch cord
HTH
06-08-2011 02:52 PM
Dear Reza,
excuse me I'm not an expert in the fibre cable tech but I think we used SM
between the Blade's Cisco CVR-X2-SFP and the Cisco 2960 10Gb port.
However do we need a LED to SC cord in this case?
Best regards, Rainer
06-08-2011 04:27 PM
You need LC to SC fiber cord. If your optics are SM, then your patch cord needs to be SM also.
SC connect to the 3110 and LC connects to the 2960
HTH
06-09-2011 08:28 AM
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
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