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Re: Testing multicast stream from Thailand


Chronological Thread 
  • From: Alan Crosswell <>
  • To: Patcharee Basu <>
  • Cc: Jon-Paul Herron <>, Greg Shepherd <>,
  • Subject: Re: Testing multicast stream from Thailand
  • Date: Thu, 06 Nov 2003 16:22:20 -0500
Looks good via rtpqual:

bash-2.05b$ rtpqual 233.18.159.50 15000
Defaulting to: rtpqual 233.18.159.50 15000 rtp
Report from: rtpqual 233.18.159.50 15000 rtp at Thu Nov 6 16:20:38 2003
T Pkts Loss % Late Bytes | Pkts Loss % Late kB Sender
38 11 0 0 10 16406 | 11 0 0 10 16 203.159.28.31
39 27 0 0 27 40217 | 38 0 0 37 55 203.159.28.31
40 26 0 0 26 38741 | 64 0 0 63 93 203.159.28.31
41 28 0 0 28 41714 | 92 0 0 91 133 203.159.28.31
42 26 0 0 26 38754 | 118 0 0 117 171 203.159.28.31
43 26 0 0 26 38762 | 144 0 0 143 209 203.159.28.31
44 27 0 0 27 40252 | 171 0 0 170 248 203.159.28.31
45 26 0 0 26 38773 | 197 0 0 196 286 203.159.28.31
46 27 0 0 27 40206 | 224 0 0 223 326 203.159.28.31
47 28 0 0 28 41713 | 252 0 0 251 366 203.159.28.31
48 24 0 0 24 35768 | 276 0 0 275 401 203.159.28.31
49 29 0 0 29 43221 | 305 0 0 304 443 203.159.28.31
50 26 0 0 26 38773 | 331 0 0 330 481 203.159.28.31
51 27 0 0 27 40267 | 358 0 0 357 521 203.159.28.31
52 26 0 0 26 38746 | 384 0 0 383 558 203.159.28.31
53 28 0 0 28 41754 | 412 0 0 411 599 203.159.28.31
54 26 0 0 26 38773 | 438 0 0 437 637 203.159.28.31
55 26 0 0 26 38750 | 464 0 0 463 675 203.159.28.31
56 28 0 0 28 41744 | 492 0 0 491 716 203.159.28.31
57 26 0 0 26 38765 | 518 0 0 517 754 203.159.28.31
58 28 0 0 28 41759 | 546 0 0 545 794 203.159.28.31
59 26 0 0 26 38743 | 572 0 0 571 832 203.159.28.31


Patcharee Basu wrote:
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


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