chap3 - 2007 Cisco Systems, Inc. All rights reserved. Cisco...

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Unformatted text preview: 2007 Cisco Systems, Inc. All rights reserved. Cisco Public ITE PC v4.0 Chapter 1 1 Introduction to Dynamic Routing Protocol Routing Protocols and Concepts Chapter 3 Modified by Tony Chen 10/03/2008 ITE PC v4.0 Chapter 1 2 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Notes: If you see any mistake on my PowerPoint slides or if you have any questions about the materials, please feel free to email me at chento@cod.edu . Thanks! Tony Chen College of DuPage Cisco Networking Academy ITE PC v4.0 Chapter 1 3 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Objectives Describe the role of dynamic routing protocols and place these protocols in the context of modern network design. Identify several ways to classify routing protocols. Describe how metrics are used by routing protocols and identify the metric types used by dynamic routing protocols. Determine the administrative distance of a route and describe its importance in the routing process. Identify the different elements of the routing table. ITE PC v4.0 Chapter 1 4 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Dynamic Routing Protocols Dynamic routing protocols are usually used in larger networks to ease the administrative and operational overhead of using only static routes. Typically, a network uses a combination of both a dynamic routing protocol and static routes. ITE PC v4.0 Chapter 1 5 2007 Cisco Systems, Inc. All rights reserved. Cisco Public The Evolution of Dynamic Routing Protocols One of the earliest routing protocols was Routing Information Protocol (RIP). RIP has evolved into a newer version RIPv2. However, The newer version of RIP still does not scale to larger network implementations. To address the needs of larger networks, two advanced routing protocols were developed: Open Shortest Path First (OSPF) and Intermediate System-to- Intermediate System (IS-IS). Cisco developed Interior Gateway Routing Protocol (IGRP) and Enhanced IGRP (EIGRP), which also scales well in larger network implementations. Additionally, there was the need to interconnect different internetworks and provide routing among them. Border Gateway Routing (BGP) protocol is now used between ISPs as well as between ISPs and their larger private clients to exchange routing information. With the advent of numerous consumer devices using IP, the IPv4 addressing space is nearly exhausted. Thus IPv6 has emerged. To support the communication based on IPv6, newer versions of the IP routing protocols have been developed (see the IPv6 row in the table). ITE PC v4.0 Chapter 1 6 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Dynamic Routing Protocols Function(s) of Dynamic Routing Protocols:-Dynamically share information between routers....
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This note was uploaded on 02/12/2012 for the course NETWORKING NETW204 taught by Professor Baig during the Spring '09 term at DeVry Addison.

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chap3 - 2007 Cisco Systems, Inc. All rights reserved. Cisco...

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