Configuring Vlan Settings; Configuring Cisco Discovery Protocol (Cdp); Configuring Lldp-Med - Cisco 521SG - Unified IP Phone VoIP Administration Manual

Configuring Security, Quality, and Network Features

Configuring VLAN Settings

Configuring VLAN Settings
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide
If you use a VLAN, your IP phone voice packets are tagged with the VLAN ID. (This
section does not apply to the Cisco WIP310.)

Configuring Cisco Discovery Protocol (CDP)

CDP is negotiation-based and determines which VLAN the IP phone resides in. If
you are using a Cisco switch, Cisco discovery protocol (CDP) is available and
enabled by default. CDP:
• 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 IP phone.

Configuring LLDP-MED

The
Cisco SPA300 Series and
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. 1 AB (LLDP) Specification of May 2005, and ANSI TIA-1057 of April 2006.
Cisco SPA IP phones operate 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).
Cisco SPA 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
Cisco SPA500 Series IP phones support Link Layer
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