Configuring LLDP

1. Log on to the switch.
2. Enter enable to access Privileged EXEC mode.
3. Enter interface unit/slot/port to access Interface Config mode – for example, interface 1/0/1.
4. Using a series of lldp transmit-tlv commands, define the type length values (TLVs) that will be transmitted in the LLDP data units (LLDPDUs) from an interface or range of interfaces.

   For example:

   (Extreme 220)(Interface 1/0/1) #lldp transmit-tlv port-desc
   (Extreme 220)(Interface 1/0/1) #lldp transmit-tlv sys-name
   (Extreme 220)(Interface 1/0/1) #lldp transmit-tlv sys-desc
   (Extreme 220)(Interface 1/0/1) #lldp transmit-tlv sys-cap

   In this example, the following TLVs will be included in each LLDPDU:

   • port-desc: port description
   • sys-name: system name
   • sys-desc: system description
   • sys-cap: system capabilities
5. Issue the command lldp transmit-mgmt so that local system management address information will be included in the LLDPDUs.
6. Issue the command lldp portid-subtype interface-name so that local system management address information will be included in the LLDPDUs.
   This command causes the switch to send the local port ID (for example, 1/0/1) in the LLDPDU, rather than sending the switch's MAC address. (The command default, lldp portid-subtype mac-address, is typically not what you want.)
7. Issue the command show voice vlan interface all to verify that output is displayed in the correct format.