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Module-2/S3
Questions/Answers
Question | Answer |
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1) What type of packet is used to keep track of neighboring routers? | Each router multicasts hello packets to keep track of state of neighbor routers. Each router uses LSAs to keep track of all the routers in its area of the network. The hello packets contain information about the networks that are attached to the router. |
2) Identify three features that are characteristic of routers running a link-state routing protocol? | Routers that use link-state routing protocols have the following features: - Use the hello information and LSAs received from other routers to build a database about the network - Use the SPF algorithm to calculate the shortest route to each network - |
3) What is a link? | A link is the same as an interface on a router. The state of the link is a description of an interface and the relationship to the neighbor routers. |
4) What is the purpose of the topological database? | - A link-state database (or topological database) is a list of information about all other routers in an internetwork. - The routers process the information about link-states and build a link-state database. Every router in the OSPF area will have the sa |