Suppose we connected a third-party module to the first SFP port, we’ll look at the information about it:
show idprom int GigabitEthernet 1/1
In my case, on the Cisco Catalyst 6509-E, very many ports with third-party SFP modules after some time they turned off and in the logs information was written that the module was not supported.
Now go into the configuration mode:
enable config t
And we will make sure that the interfaces are not disabled when third-party SFP modules are enabled by entering the following commands:
service unsupported-transceiver no errdisable detect cause sfp-config-mismatch no errdisable detect cause gbic-invalid
After that, everything worked well.
Configure Cisco Catalyst 6509-E