AdamSP wrote

Hi,

I have T2600G-52TS, hardware V1, and firmware 1.0.1 Build 20160114 Rel.51630(s). Its CPU usage is 30% and memory 78%. Can I turn on LLDP? Will it require reboot or lost connection for end-users?

You can turn on LLDP. It will not reboot and lost connection for end-users. But it will take up the CPU usage because the CPU need to process the LLDP data. If the switch doesn't keep the high CPU usage (over 80%), I think it still can work normally.