Working from the my last couple of OSPF posts I am going to try and crystallize some of the material found by working through questions found in Stewart, B,D., Gough, C (2008). CCNP BSCI Official Exam Certification Guide, Fourth Edition. Indianapolis: Cisco Press book.
Router_1(config)#router ospf [process id]
The process ID is local to the router, and two OSPF neighboring routers can have different OSPF process IDs. (This is not true of Enhanced Interior Gateway Routing Protocol [EIGRP], in which the routers need to be in the same autonomous system). IOS can run multiple OSPF processes on the same router, and the process ID merely distinguishes one process from the another. The process ID should be a positive integer.
To show the OSPF Process ID use the following commands:
Router_1#show ip ospf
In the first line of output Routing Process ospf xxx with ID xxx.xxx.xxx.xxx
Router_1#show ip ospf database
In the first line of output OSPF Router with ID (xxx.xxx.xxx.xxx) (Process ID xxx)
Router_1#show ip ospf interface
In the third (plus or minus) line of output Process ID xxx, Router ID xxx.xxx.xxx.xxx, network type xxxxxxxxx, Cost: x
Notes and Notices: This is a part of my personal BSCI notes and research to assist myself in learning and understanding the concepts and theory for the BSCI exam. I learn by making notes reading and writing things down and wish to file them where I cannot lose them. These notes are not to be seen, judged or mistaken for replacements to Cisco recognized and authorized training which I personally support and attend and suggest you undertake if you are going for the BSCI Certification.