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2) Configure CDP-compatible LLDP on Switch A.
# Enable LLDP globally and enable LLDP to be compatible with CDP globally.
[SwitchA] lldp enable
[SwitchA] lldp compliance cdp
# Enable LLDP (you can skip this step because LLDP is enabled on ports by default), configure LLDP
to operate in TxRx mode, and configure CDP-compatible LLDP to operate in TxRx mode on
GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2.
[SwitchA] interface gigabitethernet 1/0/1
[SwitchA-GigabitEthernet1/0/1] lldp enable
[SwitchA-GigabitEthernet1/0/1] lldp admin-status txrx
[SwitchA-GigabitEthernet1/0/1] lldp compliance admin-status cdp txrx
[SwitchA-GigabitEthernet1/0/1] quit
[SwitchA] interface gigabitethernet 1/0/2
[SwitchA-GigabitEthernet1/0/2] lldp enable
[SwitchA-GigabitEthernet1/0/2] lldp admin-status txrx
[SwitchA-GigabitEthernet1/0/2] lldp compliance admin-status cdp txrx
[SwitchA-GigabitEthernet1/0/2] quit
3) Verify the configuration
# Display the neighbor information on Switch A.
[SwitchA] display lldp neighbor-information
CDP neighbor-information of port 1[GigabitEthernet1/0/1]:
CDP neighbor index : 1
Chassis ID : SEP00141CBCDBFE
Port ID : Port 1
Sofrware version : P0030301MFG2
Platform : Cisco IP Phone 7960
Duplex : Full
CDP neighbor-information of port 2[GigabitEthernet1/0/2]:
CDP neighbor index : 2
Chassis ID : SEP00141CBCDBFF
Port ID : Port 1
Sofrware version : P0030301MFG2
Platform : Cisco IP Phone 7960
Duplex : Full
As the sample output shows, Switch A has discovered the IP phones connected to GigabitEthernet
1/0/1 and GigabitEthernet 1/0/2, and has obtained their LLDP device information.
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