From: cao lingwei (caolw@xxxxxxxxxxxx)
Date: Wed Jun 06 2001 - 03:02:52 GMT-3
I have a input error.
2.do NOT change ip ospf network type in your isdn interface.
----- Original Message -----
From: "cao lingwei" <caolw@fosco.com.cn>
To: "David Anderson" <dma@cisco.com>; <ccielab@groupstudy.com>
Sent: Wednesday, June 06, 2001 1:59 PM
Subject: Re: ISDN flapping
> 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 o
ther 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 of
> > the line going up it has the source as the ip address of the BRI interface
> > 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
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