Disable LLDP on Adtran Switches
I ran into a couple issues when our phone guys updated ShoreTel to the new version. The new version supports LLDP. The Adtran switches have LLDP on by default and it messed up the phones on a flat LAN (no VLANs). The below configs will fix the issue in a flash.
1. Log into the switch and go into enable mode.
2. Enter the following to disable lldp on the interfaces.
interface range ethernet 0/2-24
no lldp send-and-receive
Always remember to write the config to memory.