ccna 200 301 network simulator

ccna 200 301 network simulator.R4# configure terminal Enter configuration commands, one perline. end with CNTL/Z. R4(config)# ipv6 router ospf 4 R4(config-rtr)# passive-interface gigabitEthernet 0/0 R4(config-rtr)# *Z R4#Jan17 23:49:56.379: %OSPFv3-5-ADJCHG:Process4, Nbr 1.1.1.1on GigabitEthernet0/0 from FULL to DOWN, Neighbor Down: Interface down or detachedOSPFv3 neighborsTypically, OSPFV3 follows the same tradition as OSPFv2 regarding how neighbors do their job. OSPFv3 uses many of the same protocol message names, neighbor states, and concepts in forming neighbor relationships and exchanging link state databases (LSDBs). The next topic will present some examples of this process, and more importantly, it will present the most critical OSPF issue: the transaction that prevents a router from forming a neighbor relationship. Verifying OSPFV3 NeighborsNext, Example 17-8 describes the similarity of OSPFv3 and OSPFv2 message names and neighbor states. When reading the debug output of the example, do not care about the details, but instead pay attention to the shaded sections. The shaded section lists some common neighbor states for OSPFv2, such as 2-way, quasi-start, swap, load, and fish 11, which is the final expected state in such cases.The example first shows the output of the debug ipv6 ospf adj command, which lists the messages for the OSPFv3 "neighbor" event, that is, what happens when a neighbor completes its neighbor state. The example concludes with the output of the showipv6 ospfneighbor command for R2, which confirms that the state of R2 and R3 is the final fiill state, as mentioned in the debug command. (Note that some of the debug messages have been removed for readability.)Jan 15 14 14:50:58.102: OSPFv3-2-IPv6 ADJ Gi0/0: Nbr 3.3.3.3: Summary list built, sizeJan 15 0x0013 14:50:58.106: OSPFv3-2-IPv6 ADJ Gi0/0: flag 0x1 len 308 mtu 1500 state EXCHANGE Rev DBD from 3.3.3.3 seq 0xBD091EE optExample 17-8 Viewing a Change in Its Relationship with an R3 Neighbor from R2R2# debug ipv6 ospf adj R2#