ccna certification pearson vue

ccna certification pearson vue.L 172.16.0.1/32 is directly connected, GigabitEthemetO/1 local route, administrative distance is 0, metric is 0, 1OS version 15 onwards there is a /32 host route in the routing table with the router's locally active interface address as the destination network C 172.16.1,0/24 is directly connected, GigabitEthemetO/1 local route, administrative distance is 0, metric is 0, 1OS version 15 onwards there is a /32 host route in the routing table with the router's locally active interface address as the destination network directly connected, GigabitEthemetO/2 L 172.16.1.1/32 is directly connected, GigabitEthemetO/2 C 172.16.12.0/24 is directly connected, Serial0/0 /0L 172.16.12.1/32 is directly connected, Serial0/0/0 C 172.16.21.0/24 is directly connected, GigabitEthemet0/0 L 172.16.21.1/32 is directly connected, GigabitEthemet0/0 connected, GigabitEthemetO/O.The above output indicates that the routing table of router R1 contains four directly connected routes, four local routes, and one static default route entry. The output shows that the static default route with outgoing interface S0/0/0 does not appear in the routing table because its administrative distance is 100, which is greater than the administrative distance of 1 for the static default route with next-hop address 172.16.21.2. For the same route, the router will populate the routing table with the route entry with the smaller administrative distance. And the static default route with an outgoing interface of S0/0/0 is a floating static route that serves as a backup. Next, see how floating static routes work?First, simulate a network failure (execute the shutdown command on the G0/0 interface of router R1 to shut down the interface), and the primary link goes down, at which point the floating static route will appear in the R1 routing table as follows: Rl#show ip route static |include 0.0.0.0/0 S* 0.0.0.0/0 is directly connected,Serial0/0/0 Router R1 selects the static default route for the outgoing interface as S0/0/0. The following command allows you to view the detailed information of the routing entry Rl#show ip route 0.0.0.0 Routing entiy fbr 0.0.0.0/0, supemet Known via "static", distance 100, metric 0 (connected), candidate default path// Routing entry admin distance 100 Routing DescriptorBlocks:* directly connected, via SerialO/O/O Route entry send out interface Route metric is 0,traffic share count is 1Next, simulate a network failure recovery (execute the no shutdown command on interface G0/0 of router R1, turn on the interface)? --Rl#show ip route static | include 0.0.0.0/0.64.Cisco Networking Lab CCNA Lab Guide (Release 2)S* 0.0.0.0/0 [1/0] via 172.16.21.2//Router R1 reselects the static default route with the next hop address 172.16.21.2 and the static default route with the outgoing interface S0/0/0 continues to serve as a backup