Catalyst 2960L LAN Lite has no 'service unsupported-transceiver' command for third-party SFPs
The poster wanted to use third-paty SFP modules in a Cisco Catalyst 2960L-48TS (LAN Lite feature set, image c2960l-universalk9-mz.152-6.E2b). Entering 'service unsupported-transceiver' in global configuration mode only produced a command error because the CLI does not know the command on this platform; 'no errdisable detect cause gbic-invalid' was also tried without effect. 'show int status' showed the interface as fine, yet the third-party SFPs did not work, although the same modules worked in a Catalyst 3750 where the unsupported-transceiver command exists. The poster asked for a workaround and whether the switch could be moved from LAN Lite to LAN Base.
- Hardware: Cisco Catalyst 2960L-48TS (LAN Lite), Cisco Catalyst 3750
- Transceivers: third-party 1G SFP (unspecified)
- Form factor: SFP
Symptoms / messages:
'service unsupported-transceiver' rejected as an unknown command
third-party SFP does not link
'no errdisable detect cause gbic-invalid' has no effect
interface reported OK in 'show int status'
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Comments 5
The LAN Lite feature set on this software release does not contain the needed commands; either 'service unsupported-transciever' or 'no errdisable detect cause gbic-invalid' requires a higher base feature set.
The license level of the Catalyst 2960-L is fied: LAN Lite cannot be upgaded to LAN Base (nor downgraded), so the command cannot be unlocked.
Try 'no errdisable detect cause gbic-invalid' - on newer code this command moved under the interface configuration level. What IOS version are you running?
Try updating the IOS - I don't have a specific release to point you to, unfortunately.
I eventually gave up on third-party optics and deployed genuine Cisco SFPs - worked without any special command.