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The mid-level Cisco qualified community specialist (CCNP) certification validates complex wisdom of Cisco-based networks. This unmarried quantity, from the chief in certification, offers whole and updated assurance of all 4 tests required for the CCNP certification: 642-801, 642-811, 642-821, and 642-831. not just is it convenient to have the entire valuable research info compiled in a single consultant, it's also the main competitively priced self-study resolution. The better half CD contains complicated checking out engine containing bankruptcy evaluate questions and 8 bonus checks, flashcards for desktops, Pocket computers, and Palm units, and the complete ebook in PDF.
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Extra resources for CCNP complete study guide
From this, you can deduce that the entry you are looking at was learned by the RIP routing protocol. 0/16 The network address and prefix length (number of bits set to 1 in the subnet mask) of the destination network. [120 The administrative distance of the route. ) /1] The metric of the route specific to the routing protocol used to determine the route. RIP uses hops as its metric. A hop is how many routers away—excluding this router—the destination network is. In this example, there is one router between this router and the destination.
After the decision has been made, the router will switch the packet to the appropriate interface on the router to forward it out. You heard me right; the router actually switches packets as well as routes them. Let’s take a look at the three obstacles a router must clear in order to make an accurate routing decision: Does the router that is sending and receiving the traffic know the protocol being used? The protocols that are most widely used are IP and IPX. Other protocols, such as AppleTalk and DECnet, may also be used.
We’re not talking about a monetary cost either. A routing protocol consumes more CPU cycles and network bandwidth than a static route. For a large network, the cost is worth it. There are two types of dynamic routing protocols in use today: Interior Gateway Protocols (IGPs) and External Gateway Protocols (EGPs). IGPs are used to exchange routing information within the same routing domain. A routing domain is the collection of routers and end systems that operate under a common set of administrative rules.