network speed

i have first server (sun solaris 5.10) for example X(172.x.x.x)
and i have second server (sun solaris 5.10) for example Y(192.x.x.x)
also we have 3 clients PC (windows XP)(172.x.x.x)
the X server connect to Y server and to clients PC

  • who to know the network speed between X and Y
  • who to know the network speed between X and clients PC
    your help pls
    thank you and best regards

on the solaris machines have a look at the output of "dladm show-dev". also you can run test programs like "ttcp" to test your speed over the network...