Configuring Link Layer Discovery Protocol For Media Endpoint Devices (Lldp-Med) - Cisco SPA303 Administration Manual

Configuring Security, Quality, and Network Features
Configuring VLAN Settings for IP Phones
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide
Configuring Link Layer Discovery Protocol for Media
Endpoint Devices (LLDP-MED)
The Cisco SPA500 Series and Cisco SPA300 Series IP Phones support LLDP-MED
for deployment with Cisco or other third-party network connectivity devices that
use a Layer 2 auto-discovery mechanism. Implementation of LLDP-MED is done in
accordance with IEEE 802. 1 AB (LLDP) Specification of May 2005, and ANSI TIA-
1057 of April 2006.
LLDP-MED is enabled by default.
Cisco SPA IP Phones operates as LLDP-MED Media End Point Class III devices
with direct LLDP-MED links to Network Connectivity Devices, according to the
Media Endpoint Discovery Reference Model and Definition (ANSI TIA-1057
Section 6).
The Cisco IP Phones support only the following limited set of TLVs as LLDP-MED
Media Endpoint device class III:
• Chassis ID TLV
• Port ID TLV
• Time to live TLV
• Port Description TLV
• System Name TLV
• System Capabilities TLV
• IEEE 802.3 MAC/PHY Configuration/Status TLV (for wired network only)
• LLDP-MED Capabilities TLV
• LLDP-MED Network Policy TLV (for application type=Voice only)
• LLDP-MED Extended Power-Via-MDI TLV (for wired network only)
• LLDP-MED Firmware Revision TLV
• End of LLDPDU TLV
The outgoing LLDPDU contains all the above TLVs when if applicable. For the
incoming LLDPDU, the LLDPDU is discarded if any of the following TLVs are
missing. All other TLVs are not validated and ignored.
• Chassis ID TLV
• Port ID TLV
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