chapter 9 Flashcards
what is routing?
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routing refers to the process of tacking a packet from one device and send in it through the network to another device on a different network.
to be capable of routing packets, a router must know the following information______
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- destination network address.
- neighbor routers from which it can learn about remote network
- possible routing to all remote network
- the beast route to each remote network
- how to maintain and verify routing information
where do router learns about remote network?
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from neighbor routers or from an administrator.
what is a routing table?
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For a network router to know where to send packets of data it receives, it uses a routing table. The routing table contains a list of specific routing destinations, and when the router receives a packet of data, it references the routing table to know where to send that data. The routing table may also contain information on how far each destination is from the router. In essence, a routing table is a map for the router.
A routing table does not contain a list of all possible destinations. Rather, it contains a list of destinations that are next in line to the router.
if a network is directly connected to the router, the router know how to get to it. T/F
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True
if the network is not directly connected to the router, the router must use 1 of 2 ways to learn how to get to it. what are these 2 ways?
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1- static routing
2- dynamic routing
static routing definition?
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Static routing is a form of routing that occurs when a router uses a manually-configured routing entry, rather than information from a dynamic routing traffic.
dynamic routing definition?
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Dynamic routing, also called adaptive routing, describes the capability of a system, through which routes are characterized by their destination, to alter the path that the route takes through the system in response to a change in conditions.
