It was hot, too hot. Our detective had been working feverishly to configure OSPF over NBMA without the use of ip ospf network statements. He knew that to do this he must explicitly add neighbor statements or adjacencies would not form.
He logs into the hub router and types in his three neighbor statements. All seems well. It's still too hot, but it's a dry heat. He now logs into one of the spoke routers and types in his neighbor statement. He pauses momentarily and then checks the OSPF adjacencies. Something seems to be wrong, he thinks to himself. This ought to be working, but it isn't. Why not? He looks through the running config to look for any errors and notices the the neighbor statement that he just entered is missing! He slowly and deliberately types it in again making sure there are no mistakes but yet it still does not show up in the running configuration. Is this an IOS issue? Operator error? Some rift in the space-time continuum? He jumps to another spoke router running a different IOS and tries the same thing with the same result. He is frantic now, beads of sweat pouring down his face. What if this were the real CCIE lab exam? Could this be a fatal stumbling block? He finally notices that adjacencies do eventually form after clearing the relevant interfaces. This must be because the hub router accepted the neighbor statements. But what if it hadn't, he ponders. He thinks forward into the future when--a day after taking the lab exam--he receives the dreaded email that says, "We're sorry, it is apparent that you have no clue." Back to the real world.... What was the cause of the missing neighbor statements? Have any of you run into this before? I've never bothered to explicitly use neighbor statements as I'm in the habit of using the ip ospf network command to make them unnecessary. Any thoughts? Thanks, John Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=31656&t=31656 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
