Some Cisco CLI Commands a must to remember. So I am posting this here for my own reference
license boot module c1900 technology-package datak9
“ip sla restart <ID>”
Despite the error displayed, which leaves no hope for a solution, keep smiling as you're about to be given one.
There are two undocumented commands which can be used to force the Cisco Catalyst switch to enable the GBIC port and use the 3rd party SFP:
(config)# service unsupported-transceiver (config)# no errdisable detect cause gbic-invalid
When entering the service unsupported-transceiver command, the switch will automatically throw a warning message as a last hope to prevent the usage of a 3rd party SFP.
The no errdisable detect cause gbic-invalid command will help ensure the GBIC port is not disabled when inserting an invalid GIBC.
Since the service unsupported-transceiver is undocumented, if you try searching for the command with the usual method (?), you won't find it:
The same applies for the no errdisable detect cause gbic-invalid command.
We tried both service unsupported-transceiver & no errdisable detect cause gbic-invalid commands on 2960G, 3560G, 3750G, 4507R and 4507R-E Catalyst switches and all accepted the commands without a problem. In fact if the Catalyst switch is running IOS 12.2(25)SE and above, the undocumented commands are available.
show interfaces | i (.* line protocol is )|(.* address is)
show platform hardware throughput level
show logging | include LINEPROTO|changed state show logging | include LINK-3-UPDOWN show logging | include LINK-3-UPDOWN show interfaces status err-disabled show interfaces [interface] counters show interfaces [interface] | include flapping show interfaces [interface] | include Last input
For Aruba/HPE
show interfaces brief show logging -r | include "Link state"
test cable-diagnostics tdr interface Gi1/0/10 show cable-diagnostics tdr interface Gi1/0/10
show interface GigabitEthernet1/0/1 | include line protocol|error|CRC|collis|drops
sh logs show spanning-tree inconsistentports show spanning-tree blockedports show spanning-tree detail | in ieee|from|occur|is exec