GigabitEthernet0/52 is down, line protocol is down (err-disabled)

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Dec 23rd, 2008
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I have problem with g0/52 in 3560 switch

IT_SW1_3560#show interfaces gigabitEthernet 0/52

GigabitEthernet0/52 is down, line protocol is down (err-disabled)

This port has gibic

And I write show errordisble recovery the reson is Err disable reason gibic-invalid


I need to solve this problem


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glen.grant Tue, 12/23/2008 - 05:30
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Cisco devices are very fussy about using non cisco gbics. If you are using a non cisco gbic then that is probably the problem . You would have to get a cisco gbic to get around this even though they can be considerably more expensive. If its a cisco gbic get it rma'd from cisco. Try doing a "shut" then no shut and see if it comes active.

glen.grant Tue, 12/23/2008 - 05:49
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Get the gbic replaced.

ahmed_saleh Tue, 12/23/2008 - 05:58
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1- i rebleaced the gbic

same error

2- this switch have 4 ports gbic and tray to change from on port is arady runing and but it in this port i have the err disable


bilousand Tue, 12/23/2008 - 05:57
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There are some old GBICs marked as cisco which do not work with newer IOS. I have had to replace some after migration from 11 to 12 IOS train.


You can try hidden IOS command in order to make them work.

Router(config)#service unsupported-transceiver

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