Cisco 7936 Administration Guide - Page 26

Networking Protocols Chapter 1 Overview of the Cisco Unified IP Conference Station 7936 • Understanding the Startup Process, page 1-6 • Installation and Set-up Requirements for the Cisco Unified IP Conference Station 7936, page 1-8 Networking Protocols The IP Conference Station supports several industry-standard and Cisco networking protocols required for voice communication. Table 1-1 lists the supported networking protocols and a brief overview of each. Table 1-1 Supported Networking Protocols 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. Cisco Unified IP Conference Station 7936 Administration Guide 1-2 OL-10751-01