From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Fri Nov 10 2006 - 16:01:07 ART
Mohamed,
If you use the broadcast keyword on multiple mappings that point
to the same protocol and circuit pair all broadcast and multicast
traffic sent to the interface will be sent as a replicated unicast
multiple times. For example suppose you have the configuration:
interface serial0
encapsulation frame-relay
frame-relay map ip 10.0.0.1 100 broadcast
frame-relay map ip 10.0.0.2 100 broadcast
frame-relay map ip 10.0.0.3 100 broadcast
frame-relay map ip 10.0.0.4 100 broadcast
This means that for every broadcast or multicast packet sent to
the interface you will replicate it four times. If you have a 100Kbps
multicast feed it will be sent out circuit 100 as 400Kbps.
Where you put the broadcast statement is irrelevant though. You
can put it on a mapping to the global unicast address, the link local
address, the ::0 address, etc. as long as it points to the correct layer
2 circuit number.
HTH,
Brian McGahan, CCIE #8593 (R&S/SP)
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Mohamed Saeed
> Sent: Friday, November 10, 2006 2:38 AM
> To: ccielab@groupstudy.com
> Subject: IPv6 Frame Relay Map statement - Broadcast keyword
>
> Hi All,
>
>
>
> When a dynamic routing protocol is to run over a frame relay network
> that has IPv6 deployed, then we need two mapping statements; one for
the
> remote global unicast address and the other for the remote link local
> address.
>
>
>
> My question is regarding the "broadcast" keyword of the mapping
> statement. As per IEWB, the "broadcast" keyword is added only for the
> mapping statement of the remote global unicast address. Could someone
> please clarify why we did not use it also for the link local mapping
> statement? Could we use it only with the link local mapping statement
> instead? Could we use it with both mapping statements? What is rule
> here?
>
>
>
> Kind Regards
>
> Mohamed Saeed, CCNP - CCIP
>
>
This archive was generated by hypermail 2.1.4 : Fri Dec 01 2006 - 08:05:46 ART