tailieunhanh - Routing Protocols and Concepts – Chapter 11

OSPF (Single Area OSPF). Purpose of Hello Packet: Discover OSPF neighbors & establish adjacencies, Advertise parameters on which routers must agree to become neighbors, Used by multi-access networks to elect a Designated Router and a Backup Designated Router. | 11111111 CISCO Routing Protocols and Concepts - Chapter 11 ITE PC Chapter 1 2007 Cisco Systems Inc. All rights reserved. Cisco Public 1 Introduction Interior Gateway Exterior Gateway Protocols Protocols Distance Vector Link State Routing Protocols Routing Protocols Path Vector Glassful RIP IGRP EGP Classless RIPv2 EIGRP OSPFv2 IS-IS BGPv4 IPv6 RIPng EIGRP for IPv6 OSPFv3 IS-IS for IPv6 BGPv4 for IPv6 In this chapter you will learn to Describe the background and basic features of OSPF. Identify and apply the basic OSPF configuration commands. Describe modify and calculate the metric used by OSPF. Describe the Designated Router Backup Designated Router DR BDR election proess in multiaccess networks. Employ the default-information originate command to configure and propagate a default route in OSPF. In this chapter you will learn basic single-area OSPF implementations and configurations. More complex OSPF configurations and concepts multi-areas OSPF are reserved for CCNP-level courses. ITE PC Chapter 1 2007 Cisco Systems Inc. All rights reserved. Cisco Public 2 Introduction to OSPF Background of OSPF Began in 1987 1989 OSPFvl released in RFC 1131 This version was experimental never deployed 1991 OSPFv2 released in RFC 1247 1998 OSPFv2 updated in RFC 2328 1999 OSPFv3 published in RFC 2740 OSPF Development Timeline OSPFv3 for IPv6 was published in RFC 2740 OSPFv2 published in RFC 1247 1987 1991 1998 1999 IETF OSPF Working Current Group formed specification for OSPFv2 was published in RFC ITE PC Chapter 1 Cisco Public