From: ZEESHAN SANAULLAH (zeeshan_dreamcatcher@hotmail.com)
Date: Fri Nov 21 2008 - 06:00:56 ARST
sorry again a typo mistake ... looks like extensive labbing is making me mad
......
the inverse arp is disabled on R1 and R2 (the spokes) not on R3 ( the HUB)
>
> so they dynamically map R3 but not each other.
>
> My question is what should be the output of show frame-relay pvc command.
>
> Because in Lab i have seen two outputs ...
>
> 1 - the spokes have two active DLCIs but only the one to hub is used and
> other is unused.
>
> 2- the spokes have two active DLCIs both of which are used
> From: zeeshan_dreamcatcher@hotmail.com
> To: ccielab@groupstudy.com; narbikk@gmail.com
> Subject: FW: Frame-Relay dlci Confusion
> Date: Thu, 20 Nov 2008 22:57:32 -0900
>
> From: zeeshan_dreamcatcher@hotmail.com
> To: aahmedejaz@gmail.com
> Subject: RE: Frame-Relay dlci Confusion
> Date: Thu, 20 Nov 2008 22:57:02 -0900
>
>
>
>
>
>
>
>
> sorry ....
>
> the inverse arp is disabled on R1 and R2 (the spokes) not on R3 ( the HUB)
>
> so they dynamically map R3 but not each other.
>
> My question is what should be the output of show frame-relay pvc command.
>
> Because in Lab i have seen two outputs ...
>
> 1 - the spokes have two active DLCIs but only the one to hub is active and
> other is unused.
>
> 2- the spokes have two active DLCIs both of which are active
>
> > Date: Fri, 21 Nov 2008 12:46:53 +0500
> > From: aahmedejaz@gmail.com
> > To: zeeshan_dreamcatcher@hotmail.com
> > Subject: Re: Frame-Relay dlci Confusion
> > CC: ccielab@groupstudy.com; narbikk@gmail.com
> >
> > Hi,
> >
> > First of all what you are asking is a bit confusing. If the lab asks you
to
> > disable inverse arp and the routers should learn dlci's dynamicaly then
> > thats not possible as far as i know. In this situation you must configure
> > the hub router interface which is R3 subinterface as multipoint without
> > disabling the inverse arp feature. The router might learn a lot of dlci's
> > which you can verify through ' show frame-relay map ' command. Then what
> you
> > do is staticaly disable the dlci's which you do not need i-e ' no
> > frame-relay inverse-arp ip 213 ' , this way you will have only have the
> > dlci's pointing to R1 and R2. Same thing you do on R1 and R2 without
> > disabling the inverse arp and blocking the dlci's which you do not need.
> >
> > I hope this works for you.
> >
> > Regards,
> >
> > Ahmed Ejaz.
> >
> > On Fri, Nov 21, 2008 at 12:28 PM, ZEESHAN SANAULLAH <
> > zeeshan_dreamcatcher@hotmail.com> wrote:
> >
> > > Hello GS !!!!
> > >
> > > I am a little confused in this basic thing regarding frame-relay dlci.
> > >
> > > Lets take 3 routers R1,R2,R3
> > >
> > > R3 is the HUB and R1 and R2 are spokes
> > >
> > > The Frame-Relay switch is configured in a full mesh configuration.
> > >
> > > But the task asks to configure the routers in Hub and Spoke manner.
> > >
> > > R1 , R2 and R3 must have ip 10.1.1.1/24 and 10.1.1.2/24 and 10.1.1.3/24
> > > respectively.
> > >
> > > Disable inverse-arp on R1 and R2 so that they only learn dynamic
mapping
> to
> > > R3
> > >
> > > All config is to be done on Main interfaces.
> > >
> > > Now the confusion is that ... when all configs are done correctly.
> > >
> > > what must be the output of show frame-relay pvc command.
> > >
> > > i mean R1 and R2 must have learned two dlci.
> > >
> > > The one to R3 must be active........
> > >
> > > what about the other ???? the one between R1 and R2.
> > >
> > > What i get in Lab is some times it is unused but active and sometimes
> used
> > > and
> > > active as well.
> > >
> > > any idea ??
> > >
> > > Regards
> > > Zeeshan
> > >
> > >
> > >
> > >
> > >
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