04-19-2009 10:11 PM - edited 03-06-2019 05:16 AM
Dear
I have 2950 sx 24.It has 2 fiber gigabit port.I saw the laser led coming from the one port but the same other port it is not coming.It's switch related problem.
Please suggest me.
04-20-2009 12:44 AM
Hello Upendra,
try to do the following:
swap gbics between the one that works and the one that doesn't work.
take note of results
try to swap fibers
take note of results
final note: I would suggest to avoid to open multiple threads for the same issue delete the second one to avoid confusion.
Hope to help
Giuseppe
04-20-2009 12:50 AM
Dear
Thanks,
I tried but i obeserved one thing
when i see the working port i seen laser coming from the port but when i seen the bad port the laser is not coming from the port.
04-20-2009 12:59 AM
Hello Upendra,
I hope you are not using your eyes to check when the laser is transmitting this is not recommended !
Be also aware that we cannot see near infrared (second window is 1.3 micrometers lamdba and third window is in the range 1.5 micrometers).
Verify the part numbers of the GBIC there is a chance that you have mixed GBICs of different types.
see
as a reference.
There is also a chance that is not working well.
to check each gbic you can loop the fiber tx to rx.
Hope to help
Giuseppe
04-20-2009 01:14 AM
Dear
Any physical problem in port or any ios related problem.
There is also dust related problem.
Dust is in the Port
04-20-2009 02:38 PM
Please try the command "sh post".
04-21-2009 11:11 PM
thanks
it's showing "Passed"
where we can use the command
04-22-2009 02:39 PM
Have you tried replacing the fiber cable?
04-22-2009 09:16 PM
yes,
i think problem in port
can you tell me any command so i can check port status
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: