I have a 6506-E with WS-X6708-10Gig Modules and i have installed X2-10G-LX4 transceiver on them, on the other side i have a UCS 6120 and installed a SFP-10G-SR.
The link between the 2 does not come up, what could be the reason for that? The distance between the 2 is 10 meters and i have already tried changing the cables.
If i connect the WS-X6708-10Gid module with X2-10GB-LR module and connect it to X2-10GB-LR on another 6506-E, the link comes up. that means there is no problem with the Module or the ios on the switch.
but if connect X2-10GB-LX4 on 6506-E and X2-10GB-LX4 on the other side, the link does not come up. Any clue what could be the reason ? I have already tried changing the transceiver.
Can someone please help ?
"LX4 is only made for Multimode fiber and it is not going to work on single mode fiber no matter what you try (as you are saying link is not comming up)."
Not entirely true.
In the link below:
Notes for LX4:
"Another alternative for short reaches within the same location is to use a single-mode patch cable. There will be no saturation over single-mode fiber."
X2-10GB-LX4 can be connected to another X2-10GB-LX4 over short distances with a single-mode fiber.
Additional reference: https://supportforums.cisco.com/thread/2130959