05-26-2011 03:03 AM - edited 03-06-2019 05:12 PM
Hi
I have 3 C2960g-48TC-L switches chained together with fibre uplinks. I want to uplink a SGE2010 48 port through the fibre.
I got it uplinking once, but then the link failed between 2 of the C2960g-48TC-L switches. There's also a copper uplink between one of the C2960g-48TC-L's and a 16 port Linksys switch. I just get error disabled on the fibre uplink (SFP) ports. Does it require a specific config or should it just work out of the box ? Not all of the switches are running the latest IOS.
thanks
James
05-26-2011 03:28 AM
It might be helpfull to post the cause of error disabling and eventually a small figure.
You can find the cause in the logs or via the command show interface status err-disabled (when the port is err-disabled).
05-26-2011 04:33 AM
Hi Davy
Switch1#sh int status err-disabled
Port Name Status Reason
Gi0/45 err-disabled gbic-invalid
Gi0/47 err-disabled gbic-invalid
Switch1#
I've tried to use MGBSX1's. The 2960g's are linked with a different type. Do the fibre patch cables have to be of the same type across all links? The 2960g's are connected using 62.5 /125. I got the SGE2010 linking using 50 /125 but then it knocked one link out between the 2960g's.
Looking at the above error i'll check the compatibility list to see what will / should work with the switch. Any pointers would be useful.
thanks
James
05-26-2011 05:29 AM
Are you using 3rd party SFP's?
I found this on the web- not sure if the commands will work:
%PM-4-ERR_DISABLE: gbic-invalid error detected on Gi0/2, putting Gi0/2 in err-disable state
This can happen if you are using third party SFP (non-cisco). The solution is to use undocumented command.
First enter command:
no errdisable detect cause gbic-invalid
and second command:
service unsupported-transceiver
The second command is a hidden command apparently.
05-26-2011 06:27 AM
Hi
I've seen that but not sure it applies to the 2960 series. The Transceivers are Cisco branded but Linksys compatible. I notice that the others that link the 2960g's together are on the compatible list. They're linked wit GLC-SX-MM=.
thanks
James
05-27-2011 02:14 AM
Works !
Many thanks..
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