Marko

I have read in some notes that :

"Spokes cannot resolve each other via InARP, because the endpoints dont have
L2 circuits between them"

I guess that is wrong and that Spokes can resolve each other since they are
on different subnet.


In short, if InARP is enabled in my cloud , my DTE will got all the DLCI in
his show frame pvc | i DLCI    right ?







2010/9/22 Marko Milivojevic <[email protected]>

> Nicolas,
>
> FR switch DOES NOT participate in inverse ARP processes. Only
> end-nodes (FR DTE devices) do. Your router sent a "question" on all
> DLCIs asking routers to tell it what are their IPs. They obliged and
> you got that information. They don't have to be on the same subnet, as
> inverse ARP is unaware of subnets. It just reports what it hears.
>
> --
> Marko Milivojevic - CCIE #18427
> Senior Technical Instructor - IPexpert
>
> FREE CCIE training: http://bit.ly/vLecture
>
> Mailto: [email protected]
> Telephone: +1.810.326.1444
> Web: http://www.ipexpert.com/
>
> On Wed, Sep 22, 2010 at 20:44, Nicolas MICHEL <[email protected]>
> wrote:
> > Ok I dont really know what's behind or within the cloud .
> >
> > So it would mean that some other routers would advertise their DLCI via
> > INARP to some FRSWITCH and that FRSWITCH is sending me the results hence
> the
> > fact that I got several DLCI and maps from Others subnets ?
> >
> >
> > I thought that I would only see informations about "connected" host
> within
> > the FR cloud
> >
> >
> >
> > Thanks for the help
> >
> > 2010/9/22 Jay Taylor <[email protected]>
> >>
> >> Inverse ARP will do that when multiple DLCI's are advertised to the DCE.
> >>
> >>
> >> On Wed, Sep 22, 2010 at 2:31 PM, Nicolas MICHEL <[email protected]>
> >> wrote:
> >>>
> >>> Hey there.
> >>>
> >>> I got a router connected to a FR cloud and here is the config on the
> >>> router
> >>>
> >>> R6#sh run int s0/0/0
> >>> Building configuration...
> >>>
> >>> Current configuration : 119 bytes
> >>> !
> >>> interface Serial0/0/0
> >>>  ip address 54.1.1.6 255.255.255.0
> >>>  encapsulation frame-relay
> >>>  frame-relay lmi-type cisco
> >>> end
> >>>
> >>>
> >>>
> >>> Cant be simpler can it be ? :D
> >>>
> >>>
> >>> I d like to understand why do I got frame map and LMI DLCI from subnets
> >>> that are not DIRECTLY connected to my interface
> >>>
> >>> R6#sh frame pvc | i DLCI
> >>> DLCI = 51, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
> >>> Serial0/0/0
> >>> DLCI = 100, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
> >>> Serial0/0/0
> >>> DLCI = 101, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
> >>> Serial0/0/0
> >>> DLCI = 201, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE, INTERFACE =
> >>> Serial0/0/0
> >>> DLCI = 301, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE, INTERFACE =
> >>> Serial0/0/0
> >>> DLCI = 401, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE, INTERFACE =
> >>> Serial0/0/0
> >>>
> >>> $R6#sh frame map
> >>> Serial0/0/0 (up): ip 54.1.3.254 dlci 51(0x33,0xC30), dynamic,
> >>>               broadcast,, status defined, active
> >>> Serial0/0/0 (up): ip 54.1.2.254 dlci 100(0x64,0x1840), dynamic,
> >>>               broadcast,, status defined, active
> >>> Serial0/0/0 (up): ip 54.1.1.254 dlci 101(0x65,0x1850), dynamic,
> >>>               broadcast,, status defined, active
> >>>
> >>>
> >>> Seeking the informations in books and will post if I find
> >>> --
> >>> Nicolas MICHEL
> >>> Ingenieur Réseaux et Securité (CCNA/CCNP and CCIE Pending)
> >>> Centre d’Expertise et d’Assistance Clients
> >>> Spie communication
> >>> Tél  : +33 (0)141464924
> >>> Mob: +33 (0)608727597
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> For more information regarding industry leading CCIE Lab training,
> please
> >>> visit www.ipexpert.com
> >>>
> >>
> >
> >
> >
> > --
> > Nicolas MICHEL
> > Ingenieur Réseaux et Securité (CCNA/CCNP and CCIE Pending)
> > Centre d’Expertise et d’Assistance Clients
> > Spie communication
> > Tél  : +33 (0)141464924
> > Mob: +33 (0)608727597
> >
> >
> >
> >
> >
> > _______________________________________________
> > For more information regarding industry leading CCIE Lab training, please
> > visit www.ipexpert.com
> >
> >
>



-- 
Nicolas MICHEL
Ingenieur Réseaux et Securité (CCNA/CCNP and CCIE Pending)
Centre d’Expertise et d’Assistance Clients
Spie communication
Tél  : +33 (0)141464924
Mob: +33 (0)608727597
_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit 
www.ipexpert.com

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