Test Tranceiver

[Ibrahim Jamil]

Hi Folks

1)is there any method to test if the transceiver GLC-SX-MM inside the 3560 is faulty or isn�t function properly ,through the CLI

[jonathanaxford]

Hi,

I am not aware of any CLI commands that will perform a test of a GBIC - do you suspect that the module is faulty? Are you experiencing errors etc?

Cheers

Jonathan

[Reza Sharifi]

You can try this command, but it is not really useful, because the interface has to be in

up and up mode, which defits the purpose.

test interfaces gigabitEthernet x/x/xx

If the interface is not up this is the output

Switch-D#test interfaces gigabitEthernet 1/0/46
No IP address for GigabitEthernet1/0/46.
Skipping...
1 interfaces: 0 passed, 0 failed, 0 skipped, 1 untestable
Switch-D#

[Leo Laohoo]

Try the simple command of "sh inventory".  If you get an output that means that the appliance can "see" the component.  Other than that you'll need to get an OTDR.

[Ibrahim Jamil]

Hi

what is the   OTDR

[Leo Laohoo]

OTDR stands for Optical Tim Domain Reflectometre.  The TDR itself is a method of testing small electrical mumbo-jumbo of your copper lines.  The Optical TDR will test laser-related links like fibre optic.