openssh unix dev - Feb 2002 - [Bug 105] New: scp protocol 2 over a hippi interface takes 6 times longer

http://bugzilla.mindrot.org/show_bug.cgi?id=105

           Summary: scp protocol 2 over a hippi interface takes 6 times
                    longer
           Product: Portable OpenSSH
           Version: 3.0.2p1
          Platform: MIPS
        OS/Version: IRIX
            Status: NEW
          Severity: normal
          Priority: P2
         Component: scp
        AssignedTo: openssh-unix-dev at mindrot.org
        ReportedBy: pas50 at cam.ac.uk


scp of a 25Mb file over a hippi interface takes 159s with protocol 2 and 22
seconds with protocol 1. Over fast ethernet it takes 20s with protocal 2 and 22s
with protocol 1. Snooping the hippi for protocol 1 has packets like

16:33:54.465436 hartree-hippi0 -> hodgkin      TCP D=22 S=57066    
Ack=851535706 Seq=1272028889 Len=61440 Win=40767
16:33:54.550683      hodgkin -> hartree-hippi0 TCP D=57066 S=22    
Ack=1272090329 Seq=851535706 Len=0 Win=19188

~62k packet size

and for protocol 2 
16:33:19.024288      hodgkin -> hartree-hippi0 TCP D=57060 S=22     
Ack=2852340565 Seq=845515278 Len=0 Win=61440
16:33:19.040910      hodgkin -> hartree-hippi0 TCP D=57060 S=22    
Ack=2852356997 Seq=845515278 Len=48 Win=61440
16:33:19.047481 hartree-hippi0 -> hodgkin      TCP D=22 S=57060    
Ack=845515326 Seq=2852356997 Len=16432 Win=40767

~16k packet size.



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