We have a ME3400 that we want to enable CDP on but there is no cdp option. Why is it not available?
switch(config)#int gi0/1 switch(config-if)#cdp ? % Unrecognized command
CDP is enabled globally.
switch#show cdp Global CDP information: Sending CDP packets every 60 seconds Sending a holdtime value of 180 seconds Sending CDPv2 advertisements is enabled
Here is the running config of that interface.
interface GigabitEthernet0/1 switchport trunk allowed vlan 101-108,110,112-115,119,170,192,211,254-262,268 switchport trunk allowed vlan add 269,271,508-512,701,888 switchport mode trunk load-interval 30 udld port