RIP Briefing

Description RIP (Routing Information Protocol) RIP is a standardized Distance Vector protocol, designed for use on smaller networks. RIP was one of the first true Distance Vector routing protocols, and is supported on a wide variety of systems. RIP adheres to the following Distance Vector characteristics: • RIP sends out periodic routing updates (every 30... Continue Reading →

Troubleshooting OSPF

To view the OSPF Neighbor Table: The Neighbor Table provides the following information about each neighbor: • The Router ID of the remote neighbor. • The OSPF priority of the remote neighbor (used for DR/BDR elections). • The current neighbor state. • The dead interval timer. • The connecting IP address of the remote neighbor.... Continue Reading →

OSPF Default Routes

OSPF Area Types In order to control the propagation of LSAs in the OSPF domain, several area types were developed. Standard Area – A “normal” OSPF area. • Routers within a standard area will share Router (Type 1) and Network (Type 2) LSAs to build their topology tables. Once fully synchronized, routers within an area... Continue Reading →

OSPF Configuration

(#) Configuring Basic OSPF   Routing protocol configuration occurs in Global Configuration mode. On Router A, to configure OSPF: RouterA(config)# router ospf 1 RouterA(config-router)# router-id 1.1.1.1 RouterA(config-router)# network 172.16.0.0 0.0.255.255 area 1 RouterA(config-router)# network 172.17.0.0 0.0.255.255 area 0 The first command, router ospf 1, enables the OSPF process. The “1” indicates the OSPF process ID,... Continue Reading →

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