From: Brian (signal@xxxxxxxxxx)
Date: Wed Jun 06 2001 - 10:25:59 GMT-3
Can somone elaborate about why change the network type from default PtP to
something else? All interfaces in an OSPF area do not need to have the
same network type...........only adjacent neighbors need to have matching
types, and so long as the BRI is a PtP then those are the only 2 neighbors
involved in that adjacency.
Brian
On Tue, 5 Jun 2001, David Anderson wrote:
> Cao,
> That might be the problem. I changed my ospf network type to non-broadcast
> on my BRI interface. This is the network type on the rest of my OSPF
> interfaces, which are part of area 0. I thought all interfaces in the same
> area had to have the same OSPF network type?
> Thanks,
> David
>
>
> At 01:59 PM 6/6/2001 +0800, cao lingwei wrote:
> >The reason of ISDN flapping:
> >1.ospf database is changed.
> >2.ospf tryed to load balance or Isdn is the best route.
> >
> >The solution is:
> >1.filter any external routes advertice about isdn network when
> >redistribute other routing protocols.
> >2.do change ip ospf network type in your isdn interface.
> >3.remember ip ospf cost (must >your frame-relay interface's cost)
> >
> >best regards
> >Cao Ling Wei
> >
> >----- Original Message -----
> >From: "David Anderson" <dma@cisco.com>
> >To: <ccielab@groupstudy.com>
> >Sent: Wednesday, June 06, 2001 1:19 PM
> >Subject: ISDN flapping
> >
> >
> > > Hi,
> > > I am having an issue with my ISDN line flapping. I have ip ospf demand
> > > circuit and I am blocking any redistributed routes but the line is still
> > > going up and down. When I use the show dialer command to see the cause o
f
> > > the line going up it has the source as the ip address of the BRI interfac
e
> > > and the destination to the other ends ip address of the BRI interface.
> > >
> > > EX.
> > >
> > > R1(BRI0)---------------------------(BRI1/0)R2
> > > 133.1.100.5/30 133.1.100.6/30
> > >
> > > sh dialer map
> > > dialing cause
> > > 133.1.100.5---133.1.100.6 ??????
> > >
> > > Any thoughts as to what this is?
> > >
> > > Thanks,
> > > David
> > > David Anderson
> > > Network Design Engineer
> > > Enterprise Solutions Architecture & Design
> > > (408) 853-5515
> > > dma@cisco.com
> > > | |
> > > ..:|||||||:...:|||||||:..
> > > C I S C O S Y S T E M S
> > > **Please read:http://www.groupstudy.com/list/posting.html
> >**Please read:http://www.groupstudy.com/list/posting.html
> David Anderson
> Network Design Engineer
> Enterprise Solutions Architecture & Design
> (408) 853-5515
> dma@cisco.com
> | |
> ..:|||||||:...:|||||||:..
> C I S C O S Y S T E M S
> **Please read:http://www.groupstudy.com/list/posting.html
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