switch 2960G-24TC-L

Unanswered Question
May 26th, 2009


i have switch 2960G-24TC-L when i'm insert 1000BASE-SX module to the port Giga 0/23

and i can't see the LED go to green on this port , and when i run command

# show inventory

doesn't see the fiber module ,

only see 2960G-24TC-L

what's problem maybe the module problem or must work thing on switch to work ,

and what i want work on switch to active this port on fiber and disable it on ethernet UTP

help me

I have this problem too.
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Giuseppe Larosa Tue, 05/26/2009 - 04:53

Hello Mohamad,

try the following:

config term

int gi0/23

media-type sfp

to tell the switch you want to use the fiber based module and not the rj45

Hope to help


engmohamad1980 Tue, 05/26/2009 - 06:26

thank you

i'm trying this command but no result.

and i'm insert FX module and execute

#show inventory

i'm notice the switch see the module .

when insert sx mdule the switch don't see anything

and i want ask if insert the module to switch the port led must be green ot flush or not ??

Giuseppe Larosa Tue, 05/26/2009 - 06:52

Hello Mohamad,

try also

conf t

int gi0/23


no shut

the config guide lists only 100 Base X SFP



So I wonder if it supports a real GE fiber based port

It is supported starting from release 12.2(25)FX

see table 4 in the following


Hope to help


Leo Laohoo Tue, 05/26/2009 - 13:40

Is the GLC-SX-MM from Cisco or is it from a third-party?

Is Interface Gig0/23 in error disable?

Is Interface Gig0/23 also being used by a copper line?

Have you tried to put this SFP somewhere else?

Have you tried other SFP?

engmohamad1980 Wed, 05/27/2009 - 06:10


i'm discover the module have problem .

but i want know why the 100Fx module doesn't work fine ,

engmohamad1980 Wed, 05/27/2009 - 06:42


i'm discover the module have problem .

but i want know why the 100Fx module doesn't work fine ,


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