From: Ivan (ivan@iip.net)
Date: Fri Jan 13 2006 - 12:17:27 GMT-3
if interfaces on R1 and R2 in sparse-dense mode and RP not configured PIM will
work at dense mode.
please post (sh ip mroute) at both routers.
On Friday 13 January 2006 17:40, Prio Utomo wrote:
> 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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-- Ivan
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