From: LASSERRE Grégory (gregory.lasserre@xxxxxxxx)
Date: Mon Apr 24 2000 - 11:31:34 GMT-3
> -----Message d'origine-----
> De: LASSERRE Grégory
> Date: samedi 22 avril 2000 15:16
> À: 'Brad Johnson'
> Cc: 'ccielab groupstudy'
> Objet: RE: Challenge : HSRP
>
>
> Just so that i make myself clear regarding this challenge,
>
> the problem is that you are not allowed to use any kind of Sub-interfaces
> on R1, R2, and R3. Only "point-to-multipoint interfaces" like :
>
> R3 :
> !
> interface Serial0
> bandwidth 64
> ip address 131.1.10.3 255.255.255.248
> no ip directed-broadcast
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> no ip mroute-cache
> no fair-queue
> frame-relay map ip 131.1.10.1 44 broadcast
> frame-relay map ip 131.1.10.2 45 broadcast
> frame-relay map ip 131.1.10.3 44
> !
>
> That's why you cannot use a HSRP Track on the Serial,
> and that's why this problem is tricky...
>
> Cheers
> Greg.
>
> -----Message d'origine-----
> De: LASSERRE Grégory
> Date: samedi 22 avril 2000 14:53
> À: 'Brad Johnson'
> Cc: 'ccielab groupstudy'
> Objet: RE: Challenge : HSRP
>
>
> Brad,
>
> Sorry, but i'm afraid your proposition is not the good one.
> As i already received multiple proposition simular to yours,
> i send you my reply putting the study group in copy :
>
> The point is that R2 has to become the Active router ONLY IF
> the DLCI between R1 and R3
> fall down. In your proposition the DLCI between R1 and R2
> has also to fall down so that the
> Active router change.
> Don't forget, it's a Point-to-multipoint interface.
>
> Cheers
>
> Greg.
>
>
> -----Message d'origine-----
> De: Brad Johnson [SMTP:bjohnson@timebridge.com]
> Date: samedi 6 mai 2000 18:53
> À: LASSERRE Grégory
> Objet: Re: Challenge : HSRP
>
> use the track command. Track the Sub Interface, it will
> then decrement hsrp
> but 5 points. This will cause hsrp to trigger to the
> inactive router. You
> will configure the track command to decrease its value below
> the value of
> the other partner. This will trigger the cutover
> ----- Original Message -----
> From: "LASSERRE Grégory" <gregory.lasserre@arche.fr>
> To: "ccielab groupstudy" <ccielab@groupstudy.com>
> Sent: Friday, April 21, 2000 11:56 AM
> Subject: Challenge : HSRP
>
>
> >
> > Hi guys,
> >
> > I've got a challenging question i worked on last week
> regarding HSRP.
> > The solution is not so trivial, and it took me a while to
> find the answer
> > (so i hope you won't find the solution too quickly ;o)
> >
> > Just let's go :
> >
> > R1,R2, and R3 routers are full-meshed over FR,
> > using point-to-multipoint interfaces.
> >
> > R1 and R2 are also connected via Ethernet.
> > R3 has an LAN interface (Eth, or Token. As you wish)
> >
> > You are running HSRP between R1 and R2 ; and R1 is your
> Active router by
> > default.
> >
> > What you want to do is to configure the routers so that
> > R2 becomes the Active router IF and ONLY IF the DLCI
> between R1 and R3
> fall
> > down.
> >
> > Note: You have to run OSPF on the FR cloud (R1, R2, R3 are
> in Area 0)
> >
> > Good luck,
> > and please don't ridiculate me finding the solution in 3
> minutes ;o)
> >
> > Cheers.
> > Greg.
> >
> >
> ------------------------------------------------------------------------
> > Gregory LASSERRE Tel. : +33 1 69 18 98 53
> > Network Engineer Fax : +33 1 69
> 28 55 01
> > ARCHE Groupe SIEMENS Std : +33 1 69 18 32 32
> > FRANCE
> >
> > E-mail : gregory.lasserre@arche.fr
> >
> ------------------------------------------------------------------------
> >
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