best way to prepare for ccna exam

best way to prepare for ccna exam

AutoRoute only affects the head end of the TE tunnel. Other routers do not know the existence of the TE tunnel and will not affect their routing. Headend frr information: Protected tunnel Adjacency Extended intermediate system reachability TLV (type 22 ) An intermediate system (which can be understood as a router) has at least one NET (up to 254 ) and the system ID must be the same. Cisco routers support up to three NET addresses by default , which can be modified using the following command: 10.1.23.3 10.1.12.2 The route prefix is ​​learned locally by the IGP ,best way to prepare for ccna exam, but the next hop router of the route prefix must advertise the label mapping message corresponding to the prefix to the local, and the local will assign a label to the prefix. Now a result, since the R1 has the MPLS LDP-IGP synchronization, R1 will 10.1.12.0/24 this link metric transferred to 65535 (in fact, this time the R1-R2 between OSPF adjacency should DOWN off, will save the configuration If R1 is restarted, the OSPF adjacency relationship between R1 and R2 will not be established. Therefore, R1 is preferred as R4 as the next hop to the 3.3.3.3 network, and LDP adjacency is maintained between R1 and R4 .