ccna 200 301 lab equipment

ccna 200 301 lab equipment.For example, Figure 17-3 mimics the diagram in Chapter 8, with a slight modification, to show an IPv6 subnet. The figure shows a single-area design in which R1 finds three possible routes to subnet 33 (2001:DB8:l:33::/64), with the lowest routing overhead in the middle.356 Chapter 17 Implementing IPv6 OSPF(2001:db8:1:33::/64)Figure 17-3 SPF tree, finding the route from R1 to 2001:DB8:1:33::/64In order to affect the routing metric, OSPFv3 provides us with a number of ways to be able to change the 0SPFv3 overhead of an interface, which is the same as the basic rules of OSPFv2, as summarized below. Layer & (1) Use the ipv6ospfcostxinterface subcommand to explicitly set the overhead to a value from 1 to 65535, including 1 and 65535.I Key Points (2) Change the interface bandwidth, which can be a value in kilobits per second (kbit/s), by using the bandwidth speed command, and depending on theOSPFv3 reference bandwidth/interface bandwidth, causing the router to calculate that value. (3) Use the router 0SPFv3 subcommand auto-costreference-bandwidthref-bw, to change the reference bandwidth in megabits per second (Mbit/s). OSPF Load BalancingOSPFv3 and OSPFv2 follow the same concept and use nearly identical configuration commands to affect equivalent load balancing.When OSPFv3 on a router calculates multiple equivalence routes to the same subnet, the router is able to place multiple equivalence routes in a routing table. The maximum-pathsnumberrouter subcommand of OSPFv3 defines how many such routes OSPFv3 will add to the IPv6 routing table. For example, in an interconnected network, there are six possible routes to a certain subnet that all have the same metric, and the engineer wants to use all of them, then he can use the maximum-paths 6 subcommand and configure the router. This command is a subcommand of the ipv6 router ospf command. Injecting Default RoutesFinally, because other OSPFv3 features are also very similar to OSPFv2, OSPFv3 supports the ability for routers to broadcast OSPFv3 default routes. This feature allows a router to have a default route and then tell other routers, "Hey, if you need a default route, send me a packet and I'll send you my own good default route as well."The classic example of using a routing protocol to broadcast a default route setting is a business-to-internet connection. If the enterprise has an IPv6-activated Internet connection, then this router can use the default IPv6 route to send all IPv6 network traffic to that one link. However, the remaining enterprise routers need to send their network traffic to this router so that the enterprise's engineers can use the following design goals.