From: Rich Collins (nilsi2002@gmail.com)
Date: Wed Feb 13 2008 - 02:22:03 ARST
Dear Howard,
My lab seems to be stable. I do not have an ospf neighbor statement with the
pt-to-multipt non-broadcast.
R6#sh ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
2.2.2.2 0 FULL/ - 00:01:39 142.22.135.2 Serial2/0
5.5.5.5 0 FULL/ - 00:01:43 142.22.135.5 Serial2/0
interface Serial2/0
ip address 142.22.135.1 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
R2
interface Serial2/1
ip address 142.22.135.2 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-point
ip ospf hello-interval 30
R2#sh ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
6.6.6.6 0 FULL/ - 00:01:53 142.22.135.6 S
R5
interface Serial2/0
ip address 142.22.135.5 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint non-broadcast
R5#sh ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
6.6.6.6 0 FULL/ - 00:01:57 142.22.135.6 Serial2/0
-Rich
On Feb 12, 2008 7:36 PM, Chan, Hong <Hong.Chan@pccw.com> wrote:
> Dear Collins,
>
> Sorry, there is a typing mistake.
> Final config is config R5 as ip ospf network point-to-multipoint
> non-broadcast + neighbor, R2 & R6 still keep ip ospf network point-to-point.
> and the result is that the ospf neighbor on R6 will get flapping. When the
> neighbor form with R2, it will disconnect with R5. few second later,
> disconnect with R2 and connect to R5.
>
> Regards,
> Howard
>
> -----Original Message-----
> *From:* Rich Collins [mailto:nilsi2002@gmail.com]
> *Sent:* Wednesday, February 13, 2008 8:17 AM
> *To:* Chan Hong
> *Cc:* certification Cisco; Chan, Hong
> *Subject:* Re: IPExpert LAB 39
>
> How about configuring R5 as "ip ospf network point-to-multipoint
> non-broadcast"? This should work with the hub a normal "ip ospf network
> point-to-multipoint".
>
> -Rich
>
> On Feb 12, 2008 10:24 AM, Chan Hong <chan_hong33@yahoo.com> wrote:
>
> > Dear all,
> >
> > In the IPExpert LAB 39, OSPF part. There is a hub & spoke between
> > R2,R5,R6 and R6 is the hub. The task request to config "ip ospf network
> > point-to-point" between R2 & R6 and config R5 to not broadcast ospf
> > packet.
> > The final confi is to config ip ospf network point-to-multipoint
> >
> > I'm ok with
> > the R5 config, but this will make the ospf neighbor flapping because R6
> > is the
> > point to point ospf interface. the neighbor won't be stable and I supose
> > it's
> > a problem before I read the final config.
> >
> > I'm really doubt that it won't
> > acceable in the real lab, isn't it?
> >
> > Regards,
> > Howard
> >
> >
> > Yahoo!
> > g62d8
> > e. e (f ;g %o< f d= e& d= i 2g/ i; e."!
> > h+ e
> > e>http://hk.promo.yahoo.com/security/index.html d: h'#f 4e$ c
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
>
>
> -----------------------------
> PLEASE CONSIDER OUR ENVIRONMENT BEFORE PRINTING
> Scanned By PCCW Anti-Spam Infrastructure
This archive was generated by hypermail 2.1.4 : Sat Mar 01 2008 - 16:54:48 ARST