From: Barry Rowland (reachbarry@bigfoot.com)
Date: Mon Jan 06 2003 - 10:34:27 GMT-3
To add to this,
When I was in the NMC-1 class, I discovered a bug in the paticular version
of
12.1 IOS they were running. (can't remember which one). If I manually set
the OSPF router ID's on the routers connecting to each other over the Demand
Circuit, for some reason the routers would still send out a multicast packet
every so often over the demand link and cause it to come up. The instructor
was aware of this and told me how to fix it.
If I changed from the manually set router ID's to let OSPF use the defaults
that it chooses, which are usually the loopbacks that I configured, this
would go away. I had never seen this before, or after this and I am running
"js56i-l.121-17" on all of my routers in my home rack.
HTH
----- Original Message -----
From: "kym blair" <kymblair@hotmail.com>
To: <fansh@publicf.bta.net.cn>; <ccielab@groupstudy.com>
Sent: Monday, January 06, 2003 6:12 AM
Subject: Re: how to make ospf demand-circuit calm?
> Fan,
>
> Several suggestions:
>
> (1) add "no peer neighbor-route" to the bri or dialer interface on both
> routers
>
> (2) add "no cdp enable" to both
>
> (3) make "dialer idle-timeout 40" high enough (e.g. 40 seconds) so ospf
has
> time to converge before the line shuts down.
>
> (4) if you are doing redistribution on one of the routers, don't let the
> other routing protocol tell ospf about a "better" path to the isdn link.
>
> HTH, Kym
>
>
>
>
>
>
> >From: "Fan Shan" <fansh@publicf.bta.net.cn>
> >Reply-To: "Fan Shan" <fansh@publicf.bta.net.cn>
> >To: "Ccielab@Groupstudy.Com" <ccielab@groupstudy.com>
> >Subject: how to make ospf demand-circuit calm?
> >Date: Mon, 6 Jan 2003 18:40:24 +0800
> >
> >My ISDN on ospf demand-circuit is always up by multicast to 224.0.0.5,
can
> >anyone tell me the correct config to calm it down?
> >.
> _________________________________________________________________
> MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*
> http://join.msn.com/?page=features/virus
> .
.
This archive was generated by hypermail 2.1.4 : Sat Feb 01 2003 - 07:33:43 GMT-3