4000 Router Series Layer 2 - LAN Switching Configuration Guide

• In customer bridge mode, LLDP supports nearest bridge agents, nearest non-TPMR bridge agents,

and nearest customer bridge agents. LLDP processes the LLDPDUs with destination MAC addresses

for these agents and transparently transmits the LLDPDUs with other destination MAC addresses in

the VLAN.

To configure the LLDP bridge mode:

Step Command Remarks

1. Enter system view.

system-view N/A

2. Configure LLDP to operate

in service bridge mode.

lldp mode service-bridge

By default, LLDP operates in

customer bridge mode.

Setting the LLDP operating mode

An LLDP agent can operate in one of the following modes:

• TxRx mode—An LLDP agent in this mode can send and receive LLDPDUs.

• Tx mode—An LLDP agent in this mode can only send LLDPDUs.

• Rx mode—An LLDP agent in this mode can only receive LLDPDUs.

• Disable mode—An LLDP agent in this mode cannot send or receive LLDPDUs.

To set the LLDP operating mode:

Step Command Remarks

1. Enter system view.

system-view N/A

2. Enter Layer 2 or Layer 3

Ethernet interface view.

interface interface-type interface-number N/A

3. Set the LLDP operating

mode.

lldp [ agent { nearest-customer |

nearest-nontpmr } ] admin-status { disable |

rx | tx | txrx }

By default, the nearest

bridge agent operates in

txrx mode, and the nearest

customer bridge agent and

nearest non-TPMR bridge

agent operate in disable

mode.

If no agent type is specified,

the command configures

the operating mode for

nearest bridge agents.

Setting the LLDP re-initialization delay

When LLDP operating mode changes on a port, the port initializes the protocol state machines after a

certain delay. By adjusting the LLDP re-initialization delay, you can avoid frequent initializations caused

by frequent changes to the LLDP operating mode on a port.

To set the LLDP re-initialization delay for ports: