From: David Anderson (dma@xxxxxxxxx)
Date: Wed Jun 06 2001 - 03:11:06 GMT-3
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 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
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
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:31:18 GMT-3