Cisco 7800 Series Administration Manual page 47

If you are using a VLAN without CDP, you must enter a VLAN ID for the Cisco IP Phone.
LLDP-MED
The Cisco IP Phone supports Link Layer Discovery Protocol for Media Endpoint Devices (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 802.1AB (LLDP) Specification
of May 2005, and ANSI TIA-1057 of April 2006.
The Cisco IP Phone operates as a LLDP-MED Media End Point Class III device 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 Phone supports only the following limited set of Type-Length-Values (TLV) as an 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 preceding TLVs 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
• Time to live TLV
• LLDP-MED Capabilities TLV
• LLDP-MED Network Policy TLV (for application type=Voice only)
• End of LLDPDU TLV
The Cisco IP Phone sends out the shutdown LLDPDU if applicable. The LLDPDU frame contains the following
TLVs:
• Chassis ID TLV
• Port ID TLV
Cisco IP Phone 7800 Series for Third-Party Call Control Administration Guide
VLAN Settings
33