User's Manual

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Chapter 51 Configuring IP Addressing
51.1 IP Introduction
51.1.1 IP
Internet Protocol (IP) is a protocol in the network to exchange data in the text form. IP has the functions such
as addressing, fragmenting, regrouping and multiplexing. Other IP protocols (IP protocol cluster) are based on
IP. As a protocol working on the network layer, IP contains addressing information and control information
which are used for routing.
Transmission Control Protocol (TCP) is also based on IP. TCP is a connection-oriented protocol which
regulates the format of the data and information in data transmission. TCP also gives the method to
acknowledge data is successfully reached. TCP allows multiple applications in a system to communicate
simultaneously because it can send received data to each of the applications respectively.
The IP addressing, such as Address Resolution Protocol, are to be described in section “Configuring IP
Addressing.” IP services such as ICMP, HSRP, IP statistics and performance parameters are to be described
in “Configuring IP Services.”
51.1.2 IP Routing Protocol
Our routing SWITCH supports multiple IP routing dynamic protocols, which will be described in the introduction
of each protocol.
IP routing protocols are divided into two groups: Interior Gateway Routing Protocol (IGRP) and Exterior
Gateway Routing Protocol (EGRP). GP3616 Series SWITCH supports RIP and OSPF. You can configure RIP
and OSPF respectively according to your requirements. Our SWITCH also supports the process that is to
configure multiple routing protocols simultaneously, a random number of OSPF processes (if memory can be
distributed), a BGP process, a RIP process and a random number of BEIGRP processes. You can run the
redistribute command to redistribute the routes of other routing protocols to the database of current routing
processes, connecting the routes of multiple protocol processes.
To configure IP dynamic routing protocols, you must first configure relevant processes, make relevant network
ports interact with dynamic routing processes, and then designate routing processes to be started up on the
ports. To do this, you may check configuration steps in configuration command documents.
(1) Choosing Routing Protocol
It is a complex procedure to choose routing protocol. When you choose the routing protocol, consider the
following items:
 Size and complexity of the network
 Whether the length-various network need be supported
 Network traffic
 Safety requirements
 Reliability requirements
 Strategy