multicast testing

[Robert Olson]

At 05:17 PM 7/7/99 -0400, Vikram Gazula wrote:
>
>For the networking folks,
>
>	I  am running two  video capture sessions one  through the bridge
>& the other through  the multicast session for your debugging. The machine
>is video.uky.edu
>
Here are a pair of traces from our side of things:

(dyfrig) % mtrace -t 127 dyfrig video.uky.edu 224.2.177.155
Mtrace from 140.221.9.172 to 128.163.227.202 via group 224.2.177.155
Querying full reverse path... * switching to hop-by-hop:
  0  video.uky.edu (128.163.227.202)
 -1  * * * Timed out receiving responses
Perhaps receiver 128.163.227.202 is not a member of group 224.2.177.155,
or no router local to it has a route for source 140.221.9.172,
or multicast at ttl 127 doesn't reach its last-hop router for that source
(dyfrig) % mtrace -t 127 video.uky.edu dyfrig 224.2.177.155
Mtrace from 128.163.227.202 to 140.221.9.172 via group 224.2.177.155
Querying full reverse path... 
  0  dyfrig.mcs.anl.gov (140.221.9.172)
 -1  destiny-11.mcs.anl.gov (140.221.11.253)  PIM  thresh^ 6   [default]
 -2  bluto.ctd.anl.gov (130.202.128.1)  Unknown protocol code 8  thresh^ 0  
 -3  cs-dng.anchor.anl.gov (192.5.170.130)  PIM  thresh^ 0  Reached RP/Core
Round trip time 15 ms; total ttl of 2 required.

Waiting to accumulate statistics... Results after 9 seconds:

  Source        Response Dest    Overall     Packet Statistics For Traffic From
   * * *        224.0.1.32       Packet      128.163.227.202 To 224.2.177.155
     v       __/  rtt   17 ms     Rate       Lost/Sent = Pct  Rate
192.5.170.130   cs-dng.anchor.anl.gov Reached RP/Core
     v     ^      ttl    1         0 pps        ?/0            0 pps
192.5.170.129  
130.202.128.1   bluto.ctd.anl.gov 
     v     ^      ttl    2       532 pps        0/0    = --%   0 pps
130.202.128.5  
140.221.11.253  destiny-11.mcs.anl.gov 
     v      \__   ttl    9        17 pps
140.221.9.172   140.221.9.172
  Receiver      Query Source