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Webcast-Catalyst9k
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OSPF

1. What is the significance of process id in OSPF router ospf command ?

The documentations say that whenever more than one SPF run on a router, different process IDs are used. Under what circumstances are more than one SPF processes run on a router ?

2. What is the purpose of "ip ospf network" command ?

Is it not a redundant command while we already have the following two commands and their parameters doing the job ?

router(config-if)#interface serial 0.1 point-to-point

or

router(config-if)#interface serial 0.1 point-to-multipoint

and

also we have the "broadcast" parameter in "frame-relay map" command...

when we consider Frame Relay kind of NBMAs.

1 REPLY
Cisco Employee

Re: OSPF

you need to use that basically to Avoide DRs and BDRs election and neighbor Command on NBMA. Here is the link which will explain the what exactly you are looking for about that command. It also has clear explanation about why, when and how you need to use that command with the effects of it

http://www.cisco.com/warp/public/104/3.html#11.2

Also if you scroll-up on that link, its a "OSPF design Guide". good Ref. doc for OSPF.

Just for command, which also explains the same, visit

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fiprrp_r/1rfospf.htm#1036552

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