CLI Reference Guide-R07

Table Of Contents

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24 LLDP Commands

Link Layer Discovery Protocol (LLDP) is used to discover basic information about

neighboring devices on the local broadcast domain. LLDP is a Layer 2 protocol that

uses periodic broadcasts to advertise information about the sending device.

Advertised information is represented in Type Length Value (TLV) format according

to the IEEE 802.1AB standard, and can include details such as device identification,

capabilities and configuration settings. LLDP also defines how to store and

maintain information gathered about the neighboring network nodes it discovers.

Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED) is an

extension of LLDP intended for managing endpoint devices such as Voice over IP

phones and network switches. The LLDP-MED TLVs advertise information such as

network policy, power, inventory, and device location details. LLDP and LLDP-MED

information can be used by SNMP applications to simplify troubleshooting,

enhance network management, and maintain an accurate network topology.

Table 123: LLDP Commands

Command Function Mode

lldp Enables LLDP globally on the switch GC

lldp holdtime-multiplier Configures the time-to-live (TTL) value sent in LLDP