show lldp remote-system - No Information

[andit]

Hello,

I have 10+ OS6450 (10Port - 48Port) Switch.
Since a few days I get no LLDP Information.

There are three HP 2920 there I get the Information.
For example: 0815-SW-01
Show lldp remote-system
Port 1/52 gave mit the information HP-2920-xxxx
Port 1/51: no Information - on this Port is a OS6450-P48

Enable LLDP with the command.
Configure
LLDP RUN

Didńt work. - Wrong Command

Thanks for Help Regards