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        HOST2(Fujisawa) -> HOST1(Nara)
    TCP Buffer Size      16384byte                 
    Date                 Feb  3  19:40(JST) 1996
    Message Size         1024byte                  
    

• Sequence Number(Application Level)

  

• Throughput(Application Level)

  

• Delay Time(Application Level)

  

• Sequence Number (kernel Level)

  

  Lost Segments are about 30%.

• Congestion Window Size

  

  TCP Window management is not work effectively such a heavy network.

• Round Trip Time and Retransmission Time out