Cisco 7935 Administration Guide - Page 22

Networking Protocol, Purpose, Usage Notes, The IP Conference Station uses - conference phone

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Networking Protocols Chapter 1 Overview of the Cisco IP Conference Station 7935 Networking Protocol Purpose Usage Notes Cisco Discovery Protocol (CDP) CDP is a device-discovery protocol that runs on all Cisco-manufactured equipment. Using CDP, a device can advertise its existence to other devices and receive information about other devices in the network. The IP Conference Station uses CDP to communicate configuration information to the Cisco Catalyst switch. With CDP, each device sends periodic messages to a multicast address and in turn listens to the periodic messages sent by other devices. This allows devices on the network to discover one another and learn information such as protocols used, protocol addresses, and so on. Dynamic Host Configuration Protocol (DHCP) DHCP dynamically allocates and DHCP is enabled by default. If assigns an IP address to network disabled, you must manually devices. configure the IP address, subnet DHCP enables you to connect the IP phone into the network mask, gateway, and TFTP server on each station. and become operational without manually assigning an IP address and configuring additional required network parameters. Internet Protocol (IP) IP is a messaging protocol that addresses and sends packets across the network. To communicate using IP, network devices must have an assigned IP address, subnet, and gateway. IP addresses, subnets, and gateways identifications are automatically assigned if you are using the IP Conference Station with DHCP. If you are not using DHCP, you must manually assign these properties to each station locally. Cisco IP Conference Station 7935 Administration Guide 1-2 78-12727-03

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Chapter 1
Overview of the Cisco IP Conference Station 7935
Networking Protocols
1-2
Cisco IP Conference Station 7935 Administration Guide
78-12727-03
Networking Protocol
Purpose
Usage Notes
Cisco Discovery Protocol (CDP)
CDP is a device-discovery
protocol that runs on all
Cisco-manufactured equipment.
Using CDP, a device can
advertise its existence to other
devices and receive information
about other devices in the
network.
The IP Conference Station uses
CDP to communicate
configuration information to the
Cisco Catalyst switch. With
CDP, each device sends periodic
messages to a multicast address
and in turn listens to the periodic
messages sent by other devices.
This allows devices on the
network to discover one another
and learn information such as
protocols used, protocol
addresses, and so on.
Dynamic Host Configuration
Protocol (DHCP)
DHCP dynamically allocates and
assigns an IP address to network
devices.
DHCP enables you to connect
the IP phone into the network
and become operational without
manually assigning an IP address
and configuring additional
required network parameters.
DHCP is enabled by default. If
disabled, you must manually
configure the IP address, subnet
mask, gateway, and TFTP server
on each station.
Internet Protocol (IP)
IP is a messaging protocol that
addresses and sends packets
across the network.
To communicate using IP,
network devices must have an
assigned IP address, subnet, and
gateway.
IP addresses, subnets, and
gateways identifications are
automatically assigned if you are
using the IP Conference Station
with DHCP. If you are not using
DHCP, you must manually
assign these properties to each
station locally.