All things related to multicast

[Ronan Kelly <>]

Seeing it loud and clear here in Dublin, Ireland



 wrote:

> Yesterday there was only state but no flow, now I see you clear. I'm in
> Italy and I see you through a GRE Tunnel with PAIX.
> 100% Quality on Windows Media Player.
>
> Regards
>
> Marco Restani
> NOC Top-IX
>
>
>
>                                                                                                                                           
>                      "Patcharee Basu"                                                                                                     
>                      <>           Per:      "Jon-Paul Herron" <>, "Greg Shepherd" <>       
>                      Inviato da:                  Cc:                                                                                     
>                      owner-wg-multicast@in        Oggetto:  Re: Testing multicast stream from Thailand                                    
>                      ternet2.edu                                                                                                          
>                                                                                                                                           
>                                                                                                                                           
>                      06/11/2003 05.09                                                                                                     
>                                                                                                                                           
>                                                                                                                                           
>
>
>
>
> Hello,
>
> I have already changed the TTL to 128. Do you see the stream now?
>
> Best regards,
> Patcharee
> ----- Original Message -----
> From: "Jon-Paul Herron" 
> <>
> To: "Greg Shepherd" 
> <>
> Cc: "Patcharee Basu" 
> <>;
>  
> <>
> Sent: Thursday, November 06, 2003 12:00 AM
> Subject: Re: Testing multicast stream from Thailand
>
>
>  
>
> > From Abilene, I see traffic flowing toward you at MIX:
> >
> > jpherron@SNVAng-re0>
> >  show multicast route group 233.18.159.50 extensive
> >
> > Family: INET
> > Group           Source prefix     Act Pru NHid  Packets    IfMismatch
> > Timeout
> > 233.18.159.50   203.159.28.31  /32 A   F  276   22658      0
> > 360
> >     Upstream interface: so-0/1/0.0
> >     Session name: Static Allocations
> >     Forwarding rate: 40 kBps (27 pps)
> >
> >
> > jpherron@SNVAng-re0>
> >  show multicast next-hops 276
> > Family: INET
> > ID      Refcount  KRefcount Downstream interface
> > 276            6          3 at-1/3/1.11537
> >                             so-0/2/0.0
> >
> >
> > Family: INET6
> >
> >
> > jpherron@SNVAng-re0>
> >  show interfaces descriptions
> > Interface       Admin Link Description
> > ...
> > at-1/3/1.11537  up    up   BACKBONE: OC12 to MIX GSR
> > ...
> > jpherron@SNVAng-re0>
> >
> > and on MIX, I see traffic flowing out toward you:
> >
> > mix-gsr>show ip mroute 233.18.159.50 act
> > Active IP Multicast Sources - sending >= 4 kbps
> >
> > Group: 233.18.159.50, (?)
> >    Source: 203.159.28.31 (?)
> >      Rate: 26 pps/313 kbps(1sec), 0 kbps(last 50 secs), 313 kbps(life
> > avg)
> > mix-gsr>show ip mroute 233.18.159.50
> > IP Multicast Routing Table
> > ...
> >
> > (*, 233.18.159.50), 00:17:12/stopped, RP 198.32.8.238, flags: SP
> >   Incoming interface: Null, RPF nbr 0.0.0.0
> >   Outgoing interface list: Null
> >
> > (203.159.28.31, 233.18.159.50), 00:17:12/00:03:22, flags: T
> >   Incoming interface: ATM3/0.2, RPF nbr 198.32.8.73, Mbgp
> >   Outgoing interface list:
> >     GigabitEthernet4/0, Forward/Sparse, 00:12:07/00:03:27
> >
> >
> > On Nov 5, 2003, at 11:47 AM, Greg Shepherd wrote:
> >
> >    
> >
> > > I see your SA in msdp - peer-rpf from Abilene.
> > >
> > > shep@paix>
> > >  show msdp source-active group 233.18.159.50
> > > Group address   Source address  Peer address    Originator      Flags
> > > 233.18.159.50   203.159.28.31   198.9.201.205   203.159.128.5   Accept
> > >                                ^^^^^^^^^^^^^
> > > Abilene-------------------------|||||||||||||
> > >
> > > My local RP joins the (S,G) tree toward your source through Abilene,
> > > but I
> > > don't get any data:
> > >
> > > OHALL-8801# sh ip mr 233.18.159.50 sum
> > > IP Multicast Routing Table for Context "default"
> > >
> > > Total number of routes: 73
> > > Total number of (*,G) routes: 5
> > > Total number of (S,G) routes: 68
> > > Group count: 5, average sources per group: 13.6
> > >
> > > Group: 233.18.159.50/32, Source count: 1
> > > Source            packets       bytes           aps   pps
> > > bit-rate  oifs
> > > (*,G)             0             0               0     0         0 bps
> > >   1
> > > 203.159.28.31     0             0               0     0         0 bps
> > >   1
> > >
> > > Where do you peer with Abilene?
> > >
> > > Greg
> > >
> > > On Wed, 5 Nov 2003, Patcharee Basu wrote:
> > >
> > >      
> > >
> > > > Dear Internet2 Folks,
> > > >
> > > > Asian Institute of Technology(AIT), Thailand, has just finished
> > > > multicast
> > > > configuration. I would like to ask if some friends in the WG can help
> > > > check
> > > > if you could get a multicast stream from AIT,
> > > > http://www.mmserv.ait.ac.th/MPU-web/liveconf/MPUMediaStation.asx,
> > > > It's a 256-kbps window media stream, multicast group = 233.18.159.50
> > > > port
> > > > 15000 , source addr = 203.159.28.31 port 1035.
> > > >
> > > > The current status of multicast testing with Internet2.
> > > >
> > > > Internet2 -> AIT:
> > > > AIT can receive multicast stream from Internet2, multicasttech.com,
> > > > www.americafree.tv.
> > > >
> > > > AIT -> Internet2:
> > > > An Abilene network engineer has helped me checking. The traffics
> > > > flows all
> > > > the way from source to his campus. But at his campus router, there
> > > > was a
> > > > source tree state but no traffic flowing. We still don't know yet
> > > > what is
> > > > the problem. -- Therefore, I would like to know if there is the same
> > > > problem
> > > > on other campus so I write here if someone could help joining the
> > > > stream or
> > > > telling us what could be a problem.
> > > >
> > > > Thank you very very much.
> > > >
> > > > Best regards,
> > > > Patcharee
> > > >
> > > >
> > > >        
> > >
> > >      
> > --
> > Jon-Paul Herron
> > Abilene Network Engineer
> > (812) 856-0419
> >    
>
>
>
>
>  


--
Ronan Kelly,   (CCNP, JNCIA) 
HEAnet Ltd, 
Brooklawn House, 
Shelbourne Rd, 
Dublin 4. 
Email:, 
Phone +353 (0)1 6609040, 
FAX +353 (0)1 6603666, 

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