Subject: host eyes-n-ears.sdsc.edu sending 200 p/s to mbone

From: Van Jacobson <[email-masked]>
Date: Tue, 19 Aug 97 10:46:29 PDT

eyes-n-ears.sdsc.edu, the host originating the video for the NPACI
Parallel Computing Institute session, is sending 200 packets/sec
to the mbone.  This is happening because it appears to be fragmenting
everything it sends into 64 byte packets:

  09:43:40.711862 202.30.242.131.1042 > 239.30.47.162.24055: udp 520 (frag 9825:64
  @0+)
  09:43:40.712670 202.30.242.131 > 239.30.47.162: (frag 9825:64@64+)
  09:43:40.713240 202.30.242.131 > 239.30.47.162: (frag 9825:64@128+)
  09:43:40.714100 202.30.242.131 > 239.30.47.162: (frag 9825:64@192+)
  09:43:40.714637 202.30.242.131 > 239.30.47.162: (frag 9825:64@256+)
  09:43:40.715209 202.30.242.131 > 239.30.47.162: (frag 9825:64@320+)
  09:43:40.715806 202.30.242.131 > 239.30.47.162: (frag 9825:64@384+)
  09:43:40.716312 202.30.242.131 > 239.30.47.162: (frag 9825:64@448+)
  09:43:40.716556 202.30.242.131 > 239.30.47.162: (frag 9825:16@512)

The data rate on the session is ok but this enormous packet rate is
causing loss on most other mbone sessions.  Perhaps this machine is
misconfigured or broken.

 - Van