SFP or DAC cable is not recognized by Cisco Switch, give error ” The inserted SFP module is not supported, err-disable state” and port is on errdisable state.
*Nov 11 08:36:09.495: %PLATFORM_PM-6-MODULE_ERRDISABLE: The inserted SFP module with interface name Te2/1/8 is not supported
*Nov 11 08:36:09.495: %PM-4-ERR_DISABLE: gbic-invalid error detected on Te2/1/8, putting Te2/1/8 in err-disable state
*Nov 11 08:36:36.922: %PLATFORM_PM-6-MODULE_ERRDISABLE: The inserted SFP module with interface name Te1/1/8 is not supported
*Nov 11 08:36:36.922: %PM-4-ERR_DISABLE: gbic-invalid error detected on Te1/1/8, putting Te1/1/8 in err-disable state
*Nov 11 08:37:10.707: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/14, changed state to up
Troubleshooting
Tried the below command but not really help somehow:
config t
service internal
no errdisable detect cause gbic-invalid
service unsupported-transceiver
Solution
Digging into Cisco documentation, “Errdisable Port State Recovery” can be configured using hidden options (you can not “Tab” it out) such as below
show errdisable detect
So,
TestSW01(config)#errdisable recovery interval 120
It is to “auto-recover” when errdisable is triggered on a particular port
TestSW01(config)#int te1/1/8
TestSW01(config-if)#shut
wait for some time like 1 minute
Then:
TestSW01(config-if)#no shut
Thanks for your comment, since most of the posts are experiences from work, it makes it easier for me just share my knowledge without worrying about the actual writing.