[c-nsp] PIM Split Rules and Multicast over L3 MPLS VPN

[alaerte.vidali at nsn.com]

Hi Jeff,

I still did not have opportunity to test it over L3. However, I tested
it over L2 VPNs. The result was pretty good, specially when using the
more complex algorithm available in the command "ip multicast
multipath...".
Each IPTV program took a different interface when using the following:

-Different sources and multicast group
-Same source and different multicast group

I believe the limitation advised in Cisco page were removed, or I am not
using exactly the same PFC described in the restriction.

Br,
Alaerte 

-----Original Message-----
From: ext Jeff Tantsura [mailto:jeff.nsp at gmail.com] 
Sent: Thursday, January 31, 2008 11:25 AM
To: Vidali Alaerte (NSN - BR/Rio de Janeiro)
Subject: RE: [c-nsp] PIM Split Rules and Multicast over L3 MPLS VPN

Hi Alaerte,

Would be interested in your test results.

Thanks,
Jeff

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp- 
> bounces at puck.nether.net] On Behalf Of alaerte.vidali at nsn.com
> Sent: woensdag 23 januari 2008 12:29
> To: oboehmer at cisco.com; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] PIM Split Rules and Multicast over L3 MPLS VPN
> 
> Thanks Oli.
> 
> I will test today on PFC3xx with SRB2 and post the result.
> 
> Br,
> Alaerte
> 
> -----Original Message-----
> From: ext Oliver Boehmer (oboehmer) [mailto:oboehmer at cisco.com]
> Sent: Tuesday, January 22, 2008 8:01 PM
> To: Vidali Alaerte (NSN - BR/Rio de Janeiro); 
> cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] PIM Split Rules and Multicast over L3 MPLS VPN
> 
> alaerte.vidali at nsn.com <> wrote on Tuesday, January 22, 2008 6:09 PM:
> 
> > Hi,
> >
> > PIM considers source of multicast to perform load splitting when the

> > command "ip multicast multipath" is entered. When using multicast 
> > over
> > L3 MPLS VPN, the source IP is the IP of PEx for any customer group 
> > connected to PEx.
> > Any way to overcome this limitation and achieve load splitting of 
> > multicast over L3 MPLS VPN?
> >
> > For example, consider this scenario:
> >
> >  Sender for group G1 and
> > G2---CE1-----PE1------P1-----PE2----CE2----receiver of G1 and G2
> >                                        |               |
> >                                        |_______P2______|
> >
> > The goal is having one G1 taking path PE1--P1--PE2 and G2 taking 
> > path PE1--P2--PE2.
> > (but without using GRE encapsulation to have multicast encapsulated 
> > into unicast)
> 
> 12.2SRB for the 7600 introduced "ip multicast multipath s-g-hash
basic"
> which allows you to do the hash on source+group.. Platform support for

> this is still limited, not sure about your environment.
> 
> 	oli
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