Usage NotesPurposeNetwork Protocol
To communicate using IP, network
devices must have an assigned IP address,
subnet, and gateway.
IP addresses, subnets, and gateway
identifications are automatically assigned
if you are using the Cisco
Unified IP Phones with Dynamic Host
Configuration Protocol (DHCP). If you
are not using DHCP, you must manually
assign these properties to each phone
locally.
The Cisco Unified IP Phones support
concurrent IPv4 and IPv6 addresses.
Configure the IP addressing mode (IPv4
only, IPv6 only, and both IPv4 and IPv6)
in Cisco Unified Communications
Manager Administration .
For more information, see “Internet
Protocol Version 6 (IPv6)” chapter in the
Cisco Unified Communications Manager
Features and Services Guide.
IP is a messaging protocol that
addresses and sends packets across the
network.
Internet Protocol (IP)
The Cisco Unified IP Phones support
LLDP on the PC port.
LLDP is a standardized network
discovery protocol (similar to CDP)
that some Cisco and third-party devices
support.
Link Layer Discovery
Protocol (LLDP)
The Cisco Unified IP Phones support
LLDP-MED on the SW port to
communicate information such as:
•
Voice VLAN configuration
•
Device discovery
•
Power management
•
Inventory management
For more information about LLDP-MED
support, see the LLDP-MED and Cisco
Discovery Protocol white paper:
http://www.cisco.com/en/US/tech/tk652/
tk701/technologies_white_
paper0900aecd804cd46d.shtml
LLDP-MED is an extension of the
LLDP standard developed for voice
products.
Link Layer Discovery
Protocol-Media
Endpoint Devices
(LLDP-MED)
Cisco Unified IP Phone 7941G, 7941G-GE, 7942G, 7961G, 7961G-GE, and 7962G Administration Guide for Cisco
Unified Communications Manager 9.0 (SCCP and SIP)
8
Cisco Unified IP Phone
Network Protocols