ccna 200 301 syllabus meaning hindi

ccna 200 301 syllabus meaning hindi.This section describes link-state routing protocol features, working processes, and advantages and disadvantages.8.1.1 Introduction to Link-State Routing Protocols "Link-state routing protocols are complex, scalable routing protocols. Link-state routing protocols use the Dijkstra algorithm, also known as the SPF (Shortest Path First) algorithm. While distance vector routing protocols use the Bellman-Ford algorithm, the advanced distance vector routing protocol EIGRP uses the DUAL algorithm. The distance vector routing protocol RIP and the advanced distance vector routing protocol EIGRP were introduced earlier, the distance vector routing protocol is like a traffic sign, it only gives the direction and distance, according to the guide step by step approaching the destination, but it does not know what the topology of the whole network is like. Link-state routing protocols, on the other hand, are more like a map.routing protocols are more like a map in which all potential routes can be seen and the preferred path is determined.NetworkADistance vector routing is sometimes called anecdotal routing, where the routes advertised by other routers are believed to be true. In Figure 8'-1, assuming that the RIP protocol is running, R1 should send the packet to R2 and then to Network A via R3, but if R4 tells R1 that it only needs Figure 8-1-1 Routing Protocol Comparison 1 hop to go from R4, then R1 will forward the packet to Network A to R4 and then to Network A via R5 and R3. The distance vector routing protocol has no global awareness and only makes path selection based on the information sent by the neighboring routers.Link-state routing protocols take a different approach and look more like a roadmap. Link-state routing protocols collect topological information about the entire network and determine the shortest path to each network based on this topological information. It feels like a distance vector routing protocol is like driving a car based on road signs on a highway that may take detours, whereas a link-state routing protocol is like looking at a map, judging for yourself, and choosing an optimal path.Common link-state routing protocols are OSPFV2 and 0IS. all references to OSPF in this book that are not specific refer to OSPFv2o OSPFv3 are for IPv6 and are not backwards compatible with IPv4.8.1.2 Link State Routing Protocol Work Process**During the convergence process, all link-state routers will perform the following process. Each router learns its own link, which is the directly connected network that is activated.Each router interacts with a directly connected router. Routers send Hello messages to each other to establish a neighbor relationship. Each router constructs an LSA (Link-State Advertisement) containing the state of the directly connected links o All related routers are recorded in the LSA, including the identification of neighboring routers, link type and bandwidth, etc.