DBS: Distributed Benchmark System

WAN (T1 Link: WIDE Internet) PART II

• Go to WIDE Project Home Page

• System Structure

  

• Data sheet

    CPU                  SPARCstation(SUN)
    OS                   SunOS 4.1.3
    Data Transfer        HOST1(Nara) -> HOST2(Fujisawa)
    TCP Buffer Size      8196byte
    Date                 Feb  9  16:10 (JST) 1996
    Message Size         1024byte
    

• Sequence Number(Application Level)

  

• Throughput(Application Level)

  

  Throughput are 0kbps or about 100kbps. TCP congestion avoidance method is not controlling throughput rate. TCP control sending or stopping traffic.

• Delay Time(Application Level)

  

• Sequence Number(Kernel Level)

  

  Lost Segments are about 1%.

  Multiple segments are lost continuously and its segments are lost periodically.

• Congestion Window Size

  

• Round Trip Time and Retransmission Time out