3Com 4210 9-Port - Cdp-Compatible Lldp Configuration Example

1-15
Port status of LLDP : Enable
Admin status : Rx_Only
Trap flag : No
Roll time : 0s
Number of neighbors : 1
Number of MED neighbors : 1
Number of CDP neighbors : 0
Number of sent optional TLV : 0
Number of received unknown TLV : 5
Port 2 [Ethernet1/0/2]:
Port status of LLDP : Enable
Admin status : Rx_Only
Trap flag : No
Roll time : 0s
Number of neighbors : 0
Number of MED neighbors : 0
Number of CDP neighbors : 0
Number of sent optional TLV : 0
Number of received unknown TLV : 0
As shown in the sample output, Ethernet 1/0/2 of Switch A does not connect any neighboring devices.
CDP-Compatible LLDP Configuration Example
Network requirements
As shown in Figure 1-5:
z Ethernet 1/0/1 and Ethernet 1/0/2 of Switch A are each connected to a Cisco IP phone.
z Configure voice VLAN 2 on Switch A. Enable CDP compatibility of LLDP on Switch A to allow the
Cisco IP phones to automatically configure the voice VLAN, thus confining their voice traffic within
the voice VLAN to be isolated from other types of traffic.
Figure 1-5 Network diagram for CDP-compatible LLDP configuration
Configuration procedure
1) Configure a voice VLAN on Switch A
# Create VLAN 2.