From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Thu Jun 08 2006 - 10:47:44 ART
The "frame-relay interface-dlci" command just applies the
circuit to the interface. If you have a multipoint interface you either
need to perform layer 3 to layer 2 resolution via dynamic mapping
(Inverse-ARP) or through static mapping (frame-relay map). Using the
"frame-relay map" command both assigns the DLCI to the interface and
performs resolution in the same step. If you use just the "frame-relay
interface-dlci" command on a multipoint interface you'll need to do
resolution via Inverse-ARP.
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Navin MS
> Sent: Wednesday, June 07, 2006 9:33 PM
> To: ccielab@groupstudy.com
> Subject: Interface-dlci Vs frame-relay maps ??
>
> Hi Group,
>
> Though I've done a couple of labs by now, this one is still lingering
in
> my mind.
>
> What is the difference between using two "frame-relay interface-dlci
..."
> interfaces and using two
> "frame-relay map ip ..." commands on a point-to-multipoint
sub-interface ?
> When should we use each
> one, if there is nothing explicitly stated on the lab question ?
>
>
> interface Serial3/1.301 multipoint
> ip address 172.16.1.3 255.255.255.248
> frame-relay interface-dlci 301
> frame-relay interface-dlci 302
>
> and ...
>
> interface Serial3/1.301 multipoint
> ip address 172.16.1.3 255.255.255.248
> frame-relay map ip 172.16.1.1 301 broadcast
> frame-relay map ip 172.16.1.2 302 broadcast
>
>
> To my understanding, "frame-relay interface-dlci" doesn't disable
Inverse-
> ARP and so a remote
> router would still be able to resolve L3 to L2 mapping dynamically.
> Whereas frame-relay map ip"
> would disable Inverse-ARP for that protocol+DLCI pair.
>
> Can someone please comment ?
> Thanks,
> Naveen.
>
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This archive was generated by hypermail 2.1.4 : Sat Jul 01 2006 - 07:57:32 ART