From: Prio Utomo (rionaldi@gmail.com)
Date: Fri Jan 13 2006 - 11:40:20 GMT-3
For the AutoRP, the 39 and 40 always send to dense mode, although I specify
interface as sparse? or I must use sparse-dense or ip pim autorp-listener?
maybe you can help, why directed connected sparse can connect without any RP
? I test in the lab it works.. configure all interface with sparse
LB0---R1---S0/0-------s0/0-R2-LB0
R2LB0 I join let say ip igmp join 239.1.1.1, I can ping this address from R1
without any static RP or autorp, when the mroute, one of the entry is
224.0.1.40.. do not where this multicsat came from.
----- Original Message -----
From: "Schulz, Dave" <DSchulz@dpsciences.com>
To: "Prio Utomo" <rionaldi@gmail.com>; <ccielab@groupstudy.com>
Sent: Thursday, January 12, 2006 10:18 PM
Subject: RE: Confuse between Sparse & Dense
> Rionaldi -
>
> RPs are only needed in Sparse mode. The first example is a static RP,
> which you are limited it being the RP for specific groups defined by
> your ACL. Also, it is my understanding that you do not want to use the
> deny statement in for these ACL, since multicast has issues (some of the
> experts to speak to why that is better than I). I just know that there
> are issues with this and using the filter on the mapping agent.
>
> The second is an auto-RP, which will take precedence over the statically
> configured RP. The 39 and 40 are always sent dense mode.
>
> Hope this helps.
>
>
> Dave Schulz,
> Email: dschulz@dpsciences.com
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Prio Utomo
> Sent: Thursday, January 12, 2006 7:44 AM
> To: ccielab@groupstudy.com
> Subject: Confuse between Sparse & Dense
>
> I read somewhere that multicast traffic transmission can be determined
> as
> sparse or dense not by what the interface configuration is whether ip
> pim
> sparse, ip pim dense, or ip pim sparse-dense.... but whether they can
> find
> RP or not, if can they will be sparse if not it will be dense... correct
> me
> if I am wrong.
>
> I would like to know the meaning of this command then:
>
> ip pim rp-add x.x.x.x 12
>
> access-list 12 permit 239.1.1.1 ------> sparse ?
> access-list 12 deny 239.2.2.2 ------> sparse ?
> access-list 12 deny 224.0.1.39 ------> dense?
> access-list 12 deny 224.0.1.40 ------> dense?
>
> -----------------------------------------
>
> ip pim send-rp-announce Loopback0 scope 10 group-list 45
> ip pim send-rp-discovery scope 10
>
> access-list 45 permit 224.0.0.0 0.255.255.255 ------> sparse ?
> access-list 45 permit 227.0.0.0 0.255.255.255 ------> sparse ?
> access-list 45 deny 225.0.0.0 0.255.255.255 ------> dense?
>
>
>
> Regards,
> rionaldi
>
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