Now I want to LLDP first. In my 7609 not seen the command LLDP.
7609s-6(config-if)#l2protocol-tunnel ?
cdp Cisco Discovery Protocol
drop-threshold Set drop threshold for protocol packets
shutdown-threshold Set shutdown threshold for protocol packets
stp Spanning Tree Protocol
vtp Vlan Trunking Protocol
7609s-6(config-if)#
I used Cisco IOS Software, c7600rsp72043_rp Software (c7600rsp72043_rp-ADVIPSERVICESK9-M), Version 12.2(33)SRD1, RELEASE SOFTWARE (fc4).