Subject: Re: JSU class 8 Oct 1998

From: Roman Markowski <[email-masked]>
Date: Sat, 10 Oct 1998 22:48:14 -0400

8 October,1998;  Nancy teaching from brickyard
 This was the worst class from the beginning of the  semester.
 We experienced lots of problems with BV, Chat and WebWisdom.

    - network was very good before and during the class:
      bandwidth 1.5 Mbps, symmetric paths, 0%packet loss
    - Nancy was using BV , Webwisdom, Chat, Paintbrush
       (Paintbrush for the first time ?)
    - 2 students, and Saleh joined the class at 3-216 
        both students were late
    - audio recording was not started
    - proxy server was  used on moses
    - I monitored moses, jsutango, brickyard
      there was no problems with memory, diskspace, swap
         and load on moses and jsutango
    - brickyard had no problems with disk/swap/memory/and
         load before the class

 Problems:
    - CEWES/John tried connect without success. Finally
      he quit at 18:35 because he did not receive any 
      audio and video. He promised to e-mail java console
      messages to Marek
    - There was lots of problems with BV, Chat and WebWisdom
      between 5:30 and 6:20pm. At 6:20pm Nancy restarted 
      WebWisdom session. From that moment there was no more
      interruptions. So the last 30 minutes of the class was OK.
    - BV (moses,teacher, brickyard, merkury, tonto)
      a) we had lots of audio noise generated by tonto
         in 3-216 and moses. The problem reappeared every
         time BV was restarted. 
      b) at 17:50 BVvideo died on brickyard
      c) at 17:55 audio stopped working on tonto; it was OK 
         on merkury
      d) Nancy restarted audio a few times, every time when JSU
         reported that they had no audio.
      e) At 18:30 we lost video from JSU. Mike said he was sending
    - Chat session as usual lost synchronization on brickyard and 
      tonto. It happens during each class.
      a) chat on brickyard froze and had to be restarted
    - WebWisdom 
      a) slide Nr 3 did not appear in JSU and on merkury.
         Nancy was receiving the last page and we all were
         stucked with the foil "Matrix example stencil"
      b) at 18:20 nancy closed  WebWisdom session and started it 
         again. From that moment the class went
         smoothly
    - During problems with BV/WebWisdom the load on brickyard
      jumped up to 4.55, than fell down to 2.30 

/ Roman Markowski,  IS Manager,    NPAC  , Syracuse University  \
| 111 College Place, Syracuse, NY 13244-4100     office  3-187  |
\ voice 315-443-3921 fax 315-443-1973 e-mail [email-masked] /