HP 5120 EI Series User Manual

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Number of MED neighbors : 0
Number of CDP neighbors : 0
Number of sent optional TLV : 0
Number of received unknown TLV : 0
As the sample output shows, GigabitEthernet 1/0/2 of Switch A does not connect to any
neighboring devices.
CDP-compatible LLDP configuration example
Network requirements
As shown in Figure 68, GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 of Switch A are each
connected to a Cisco IP phone. The two IP phones send out tagged voice traffic.
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, confining their voice traffic within the voice VLAN
and isolating the voice traffic from other types of traffic.
Figure 68 Network diagram
Configuration procedure
1. Configure a voice VLAN on Switch A:
# Create VLAN 2.
<SwitchA> system-view
[SwitchA] vlan 2
[SwitchA-vlan2] quit
# Set the link type of GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 to trunk and enable
voice VLAN on them.
[SwitchA] interface gigabitethernet 1/0/1
[SwitchA-GigabitEthernet1/0/1] port link-type trunk
[SwitchA-GigabitEthernet1/0/1] voice vlan 2 enable
[SwitchA-GigabitEthernet1/0/1] quit
[SwitchA] interface gigabitethernet 1/0/2
[SwitchA-GigabitEthernet1/0/2] port link-type trunk
[SwitchA-GigabitEthernet1/0/2] voice vlan 2 enable
[SwitchA-GigabitEthernet1/0/2] quit
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

HP 5120 EI Series Specifications

General

Brand	HP
Model	5120 EI Series
Category	Switch
Language	English