From: cao lingwei (caolw@xxxxxxxxxxxx)
Date: Wed Jun 06 2001 - 07:06:15 GMT-3
I have a input error.
2.do NOT change ip ospf network type in your isdn interface.
----- Original Message -----
From: "David Anderson" <dma@cisco.com>
To: "cao lingwei" <caolw@fosco.com.cn>
Cc: <ccielab@groupstudy.com>
Sent: Wednesday, June 06, 2001 2:11 PM
Subject: Re: ISDN flapping
> 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
**Please read:http://www.groupstudy.com/list/posting.html
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