I first tried a non HP optical transceiver, received the error:
Not an HP Networking transceiver
Called HP they said I need to order a HP branded optical transceiver part no 468508-002 so I did. $200 dollars later.
I inserted into the switch and got the same error, even tried power cycling. thank you .
Running the latest firmware.
Tried the following commands as well:
HP-2520G-8-PoE> allow-unsupported-transceiver
Invalid input: allow-unsupported-transceiver
HP-2520G-8-PoE> config
Invalid input: config
HP-2520G-8-PoE> enable
Username: manager
Password:
HP-2520G-8-PoE# allow-unsupported-transceiver
Invalid input: allow-unsupported-transceiver
HP-2520G-8-PoE# config
HP-2520G-8-PoE(config)# allow-unsupported-transceiver
Invalid input: allow-unsupported-transceiver
HP-2520G-8-PoE(config)# enable
Invalid input: enable
HP-2520G-8-PoE(config)# exit
HP-2520G-8-PoE# allow-unsupported-transceiver
Invalid input: allow-unsupported-transceiver
HP-2520G-8-PoE# enable
Invalid input: enable
HP-2520G-8-PoE# config
HP-2520G-8-PoE(config)# allow-unsupported-transceiver
Invalid input: allow-unsupported-transceiver
HP-2520G-8-PoE(config)#
ROM information:
Build directory: /sw/rom/build/wallerom(t4b)
Build date: Oct 26 2009
Build time: 14:31:18
Build version: J.14.05
Build number: 28079