Considerations when configuring OSPF experiments (CCIE-LAB)

Problems that should be paid attention to when configuring OSPF Experiment (CCIE-LAB) 1 When configuring NBMA in FR, You need to manually specify the neighbor on the center point, write the ip ospf pri 0 to ensure that the center is DR. 2. If you can PING yourself, you only need to configure your MAP on the vro. 3. There are two types of authentication: link authentication and regional authentication. The configuration command is similar, except that the are au authentication is not required in the OSPF process during link authentication. 4. During NBMA, make sure that FULLMAP is implemented on Layer 2. Therefore, full MAP of FR should be implemented. 5. Pay attention to the use of virtual links. This should be avoided in general work. The layered structure of the network is damaged. Unnecessary routers ARE placed in ARE 0. Will increase the convergence time. Pay attention to the use of the other side of the ROUTER-ID, rather than ip add. www.2cto.com 6 in OSPF when the first step is to define their own ROUTER-ID, the habit is that we are still running LOOKBACK port with ip ospf POINT-TO-P, do not allow LO ports to send 32-bit host routes. 8. The METRIC value must be defined when ospf redi is switched to RIP, because it is 16 hops after the default release (not reachable). Generally, for all REDI records, let's write METRIC's 9. When releasing the LOOKBACK port announcement, consider the stable link. If the connection is disconnected, how can this problem be achieved without affecting routing 10? Main check Command sh ip ospf datebasa sh ip ospf nei debug ip ospf prepared by Feng Su xianghang