In certain scenarios we could be running an OSPF network type of "broadcast" on the hub and "non-broadcast on the spokes. Where would you put your neighbor statements in this particular scenario? Since the hub is in broadcast mode it shouldn't accept the neighbor commands because in its eyes it doesn't need them. On the other hand the spokes have no broadcast capabilities and so that's where your neighbor commands go. In all honesty though I've gotten into the habit of configuring my neighbor statements on both sides just to be safe!
Unfortunately I can't tell you why your neighbor statements are disappearing if you are running either NBMA or P-2-M's, but usually you will see something similar to this on reload: "OSPF: Neighbor command is allowed only on NBMA and point-to-multipoint networks" To keep yourself from having this issue take the extra few seconds and put these statements on all of your frame-relay routers and the problem is solved :) Cheers! Thank you, Steve Di Bias Network Engineer - Information Systems Valley Health System - Las Vegas Office - 702- 369-7594 Cell - 702-241-1801 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Alef Sent: Wednesday, August 10, 2011 3:15 AM To: [email protected] IE Subject: [OSL | CCIE_RS] Fwd: vol2, lab 10, task 3.1 - question on priorities in nbma FR in addition, i thought it was usually sufficient to define the neighbors on the hub/dr only ? I've seen behavior where the neighbor command removes itself from the running config anyway. Begin forwarded message: > From: Alef <[email protected]> > Subject: vol2, lab 10, task 3.1 - question on priorities in nbma FR > Date: August 10, 2011 11:10:31 AM GMT+01:00 > To: "[email protected] IE" <[email protected]> > > Hi, > I noticed in this task that in addition to all the routers setting their > priority, it is also set on the neighbor commands. Is this necessary, or does > it speed up the DR selection, or is it a redundant thing? > > Also, in the solution guide it seems r5 and r6 don't have R5 or R6 as > neighbors, respectively. Is that on purpose or something that was forgotten > here. > > Alef _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com UHS Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient (s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution of this information is prohibited. If this was sent to you in error, please notify the sender by reply e-mail and destroy all copies of the original message. _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
