10-10-2008 12:33 PM - edited 03-06-2019 01:52 AM
Recently I upgrade one catalyst switch 6506 with 2xSUP720 and 2x WS-X6724-SFP with LH SFP modules .
The problem is when disconnecting the optical links with the 3500XL and 2950G that was previously connected to the 6506 via an old WS-X6416-GBIC card with GBIC LH modules and connecting them to the new WS-X6724-SFP card there is no link between them .
Both the old ports on the WS-X6416-GBIC and new ones on the WS-X6724-SFP have the same trunk configuration and encapsulation.
Any help ?
10-10-2008 02:51 PM
I assume that you tried reversing the fiber pairs . The new fiber module came up ok when inserted ? If its a different module did you clear the config on that module when you inserted the new card and reconfigure it ? Besides that not sure what else it would be
10-12-2008 10:21 PM
Of course I try to reverse the fiber pairs first, the weird about this is that the old GBIC WS-G5486 can communicate but the new SFP 1000BASE-LX/LH don't.
10-13-2008 01:00 PM
Hello Constantino,
you are using also new fibers because SFP have smaller connectors LC not SC as the GBIC.
have you verified if these fibers are single mode ?
Or it is the same type of other fibers you are already using : joining MM with SM cables can be a problem.
GBIC WS-G5486
Sorry for the basic question but this is something to be checked
Hope to help
Giuseppe
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