[j-nsp] R: Re: Same multicast group from the source

[chris at chrishellberg.com]

Yes it does
---

-----Original Message-----
From: Riccardo S <dim0sal at hotmail.com>
Date: Thu, 22 Nov 2012 20:56:43 
To: Stacy W. Smith<stacy at acm.org>
Cc: <chris at chrishellberg.com>; <juniper-nsp at puck.nether.net>
Subject: R: Re: [j-nsp] Same multicast group from the source

I cannot force my customer to use igmpv3....
Do not think it works with igmpv2

sent with Android

"Stacy W. Smith" <stacy at acm.org> ha scritto:

>You might want to look at ssm-map-policy.
>
>http://www.juniper.net/techpubs/en_US/junos12.2/topics/topic-map/multicast-ssm-map-for-different-groups-to-different-sources.html
>
>I think it meets your needs, but depending on how dynamic your customer's requirements are, it may be cumbersome to maintain.
>
>Here's an example:
>
>[edit]
>user at host# show protocols igmp     
>interface ge-0/0/0.0 {
>    ssm-map-policy S1-only;
>}
>interface ge-0/0/1.0 {
>    ssm-map-policy S1-and-S2;
>}
>interface ge-0/0/2.0 {
>    ssm-map-policy S2-only;
>}
>
>[edit]
>user at host# show policy-options 
>policy-statement S1-and-S2 {
>    term 1 {
>        from {
>            route-filter 224.1.1.1/32 exact;
>        }
>        then {
>            ssm-source [ 1.1.1.1 2.2.2.2 ];
>            accept;
>        }
>    }
>}
>policy-statement S1-only {
>    term 1 {
>        from {
>            route-filter 224.1.1.1/32 exact;
>        }
>        then {
>            ssm-source 1.1.1.1;
>            accept;
>        }
>    }
>}
>policy-statement S2-only {
>    from {                              
>        route-filter 224.1.1.1/32 exact;
>    }
>    then {
>        ssm-source 2.2.2.2;
>        accept;
>    }
>}
>
>
>
>On Nov 22, 2012, at 9:54 AM, Riccardo S <dim0sal at hotmail.com> wrote:
>> 
>> no failover, are completely different data...
>> 
>> Let's imagine we're talking of TV broadcasting and my customer wants receive today only channel S1 but tomorrow also, maybe, channel S2...
>> 
>> Ric
>> 
>>> Date: Thu, 22 Nov 2012 17:51:07 +0100
>>> From: chris at chrishellberg.com
>>> To: dim0sal at hotmail.com
>>> CC: juniper-nsp at puck.nether.net
>>> Subject: Re: [j-nsp] Same multicast group from the source
>>> 
>>> It depends on what you want to do. Should the receiver receive both 
>>> sources simultaneously and demultiplex the two? Or do you need failover 
>>> of some kind?
>>> 
>>> /Chris
>>> 
>>> On 22/11/12 5:40 PM, Riccardo S wrote:
>>>> 
>>>> 
>>>> 
>>>> Hi expert team,
>>>> 
>>>> I’ve a generic multicast question.
>>>> 
>>>> 
>>>> 
>>>> Let’s say I’ve two different source
>>>> sending different multicast traffic over the same multicast group, how can I
>>>> solve the problem for a customer receiver ?
>>>> 
>>>> 
>>>> 
>>>> S1=1.1.1.1 G1=224.1.1.1
>>>> 
>>>> S2=2.2.2.2 G2=224.1.1.1
>>>> 
>>>> 
>>>> 
>>>> Customer receiver is usually running
>>>> IGMPv2 and I cannot force to use IGMPv3.
>>>> 
>>>> 
>>>> 
>>>> Network in the middle between source
>>>> and receiver is not MPLS.
>>>> 
>>>> 
>>>> 
>>>> I’ve thought to NAT multicast group,
>>>> but I’m not sure it works and if anyone has already implemented it…
>>>> 
>>>> 
>>>> 
>>>> Any different solution is
>>>> appreciated…
>>>> 
>>>> Tks
>>>> 
>>>> Ric
>>>>  		 	   		
>>>> _______________________________________________
>>>> juniper-nsp mailing list juniper-nsp at puck.nether.net
>>>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>>>> 
>> 		 	   		  
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