652 | Link Layer Discovery Protocol (LLDP)
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Advertising TLVs
You can configure the system to advertise TLVs out of all interfaces or out of specific interfaces.
• If you configure the system globally, all interfaces will send LLDPDUs with the specified TLVs.
• If you configure an interface, only the interface will send LLDPDUs with the specified TLVs.
If LLDP is configured both globally and at interface level, the interface level configuration overrides the
global configuration. To advertise TLVs:
In Figure 30-8, LLDP is enabled globally. R1 and R2 are transmitting periodic LLDPDUs that contain
management, 802.1, and 802.3 TLVs.
Step Task Command
Command
Mode
1 Enter LLDP mode.
protocol lldp
CONFIGURATI
ON or
INTERFACE
2 Advertise one or more TLVs. Include the keyword for
each TLV you want to advertise.
• For management TLVs: system-capabilities,
system-description
For 802.1 TLVs: port-protocol-vlan-id, port-vlan-id,
vlan-name
• For 802.3 TLVs: max-frame-size
• For TIA-1057 TLVs:
• guest-voice
• guest-voice-signaling
• location-identification
• power-via-mdi
• softphone-voice
• streaming-video
• video-conferencing
• video-signaling
• voice
• voice-signaling
advertise {management-tlv |
dot1-tlv | dot3-tlv | med}
PROTOCOL
LLDP
Note: The vlan-name command is supported on C-Series and S-Series only.
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