Vlan Settings; Cisco Discovery Protocol; Lldp-Med - Cisco 6800 Series Administration Manual

VLAN Settings

Step 3
Click Submit All Changes.
VLAN Settings
The software tags your phone voice packets with the VLAN ID when you use a virtual LAN (VLAN).
In the VLAN Settings section of the Voice > System window, you can configure the different settings:

• LLDP-MED

• Cisco Discovery Protocol (CDP)
• Network Startup Delay
• VLAN ID (manual)
• DHCP VLAN Option
The multiplatform phones support these four methods to obtain VLAN ID information. The phone attempts
to obtain the VLAN ID information in this order:
1. LLDP-MED
2. Cisco Discovery Protocol (CDP)
3. VLAN ID (manual)
4. DHCP VLAN Option

Cisco Discovery Protocol

Cisco Discovery Protocol (CDP) is negotiation-based and determines which virtual LAN (VLAN) the Cisco
IP Phone resides in. If you are using a Cisco switch, Cisco Discovery Protocol (CDP) is available and is
enabled by default. CDP has these attributes:
• Obtains the protocol addresses of neighboring devices and discovers the platform of those devices.
• Shows information about the interfaces your router uses.
• Is media and protocol-independent.
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.
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
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Phone Installation