The easiest way I have found to do this is to:
ip ospf pri 0 on the DR's interface , this will force a new DR, then
no ip ospf pri 0
I would first get the router you wish to be the DR to be the BDR,
using the above process on the BDR
Jim Fickett
-----Original Message-----
From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
Sent: Thursday, October 03, 2002 12:59 PM
To: [EMAIL PROTECTED]
Subject: Re: How to force a new DR? [7:54810]
At 4:06 PM +0000 10/3/02, [EMAIL PROTECTED] wrote:
>Hello friends,
>
> I have a question for you, maybe you can help me.......
>
>
> Suppose that I have an Ethernet segment with some routers
>speaking OSPF, one of them is the DR and other is the BDR. Suppose that I
>add a new router to the Ethernet segment. I know that this doesn't start a
>new ellection of DR or BDR process, (the normal way is that when the DR
>fails, the BDR takes its place and one new BDR is ellected). Now suppose
>that I want the new router be the DR... How can I force this?? I know that
>I can force the priority in the election process (ip ospf priority
>command), but I am not sure that changing this priority will start a new
>election..... Must I shut down the DR and BDR routers in order to force a
>new DR and BDR?? I don't think so....
Yes you must both:
stop OSPF on the existing DR and BDR
bring up the new desired DR
if there is a router with a better priority still on, it may become
DR.
the only certain way to make a router interface DR is to have it the
only active router
bring up the other routers.
ISIS does things a different way. Essentially, it doesn't have the
BDR concept, and you can force a particular router to be DR
equivalent.
These are some of the fundamental design differences between OSPF and ISIS.
This message may contain information which is private, privileged or
confidential and is intended solely for the use of the individual or entity
named in the message. If you are not the intended recipient of this message,
please notify the sender thereof and destroy / delete the message. Neither
the sender nor Sappi Limited (including its subsidiaries and associated
companies) shall incur any liability resulting directly or indirectly from
accessing any of the attached files which may contain a virus or the like.
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=54820&t=54810
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
