braindumps network+

braindumps network+.[90/2681856] via 10.1.4.3, 00:12 24, Serial0/0/lBoth the show ip route and show ip routeeigrp commands list the routes learned by EIGRP, and these routes have a D next to them.Cisco chose to use D for EIGRP because the letter E had been used when EIGRP was created to denote a now-deprecated Exterior Gateway Protocol ( EGP) routing protocol. Cisco chose to use its closest unused letter (D) to represent the routes learned by EIGRP.Next, take a moment to consider the EIGRP routes that R1 learned by routing through R1's connections. The design in Figure 10-1 has six subnets: three on the LAN and three on the WAN. The first command in the example lists these three subnets as connected routes (10.1.1.0/24,10.140/24, and 10.1.5.0/24). The other three subnets are shown as routes learned by EIGRP.Finally, note that the two numbers in parentheses for each route are the administrative distance and the composite metric, respectively. When the IOS learns multiple routes to the same subnet from two different sources of routing information, the IOS uses the administrative distance to select the better route. See the "Administrative Distance" section in Chapter 8 for a review.10.2.2IGRP Metrics, Relay Routes, and Feasible Relay RoutesThe general idea behind OSPF and EIGRP is similar: enable the protocol on the router interface, form a neighbor relationship, create a topology table, and add IPv4 routes to the routing table. The main difference between these two routing protocols is the topology data they create and use. As a link-state protocol, OSPF creates and stores a large amount of topology data, with enough data to model the complete network topology in an area.3.2 Base Content 210EIGRP saves different types of data, less detailed information, and uses a completely different algorithm to analyze the data.The second major part of this chapter focuses on the details of the EIGRP topology database, specifically the key ideas stored in the database. To begin with a review, as defined in Chapter 9, an EIGRP successor route is the best route for a router to take to reach a subnet. Any other possible loop-free route that can be used in the event that a successor route fails is called a feasible successor (FS) route. All the information used to determine which route is a successor, FS, or neither is in the EIGRP topology table.This section demonstrates how to use the show command to identify both a successor route and an FS route by looking at the EIGRP topology table. In order to make the discussion