From: Brian (signal@xxxxxxxxxx)
Date: Tue Aug 21 2001 - 22:04:31 GMT-3
You just use a demand circuit. this prevents OSPF LSA's from bringing the
link up, aging ones anyways, new LSA's should always bring it up.
When you have redistribution going on, you may have to filter those
specific networks, such as your connected network (and possibly /32's
associated with the the dialer interfaces), so that they don't cause the
link to go up and down. The first step is determining which specific
LSA's are changing in the database causing the link to go up and down, and
then filter as needed.
Brian
On Tue, 21 Aug 2001, SALMON, MARK (SBMS) wrote:
> My dilemma, I have OSPF demand circuit configured on ISDN/Dialer interfaces.
> I have blocked OSPF multicasts to prevent dialer bouncing. The 64k question
> is how to get the demand circuit up so full adjacency is reached while
> preventing OSPF LSPs/LSAs from causing the like to bounce up and down. On
> both sides redistributed routes or the link to OSPF backbone can cause
> changes in the LSDB to cause flooding over the ISDN line.
>
> One option I see is to use dialer watch while maintaining the OSPF multicast
> filtering access list. Any thoughts? Anyone have any other ideas (assume
> that snapshot routing for IPX is NOT configured)
>
> Mark Salmon
> Sr. WAN Engineer Great Lakes Region
> Cingular Wireless
> 2000 Ameritech Center Drive 3F07B
> Hoffman Estates IL 60195
> Voice: (847)765-3999
> Pager: (847)992-0458
> Email: mark.salmon@cingular.com
> **Please read:http://www.groupstudy.com/list/posting.html
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