Could you help lower re-transmitted packets?

1.Winxp sp2
2.Comcast 4mb/384Kbps
3.I use DRTCP  http://ttester.broadbandreports.com/tweak/block:3b89c93?service=cable&speed=4000&os=winXP&via=normal
5.

::::::::::.. Download Stats ..::::::::::
Connection is:: 3798 Kbps about 3.8 Mbps (tested with 2992 KB)
Download Speed is:: 464 kB/s
Tested From:: http://www.testmy.net/
Test Time:: Sun Jan 30 2005 12:08:42 GMT-0800 (Pacific Standard Time)
Bottom Line:: 68X faster than 56K 1MB download in 2.21 sec
Validation Link:: http://testmy.net/id-BV5LGN63T


Tracing route to testmy.net [67.19.36.6]
over a maximum of 30 hops:

  1     1 ms     2 ms     2 ms  192.168.1.1
  2     *        *        *     Request timed out.
  3    15 ms     9 ms    10 ms  12.244.22.225
  4    11 ms    11 ms     9 ms  12.244.64.154
  5    14 ms    14 ms    14 ms  12.119.199.25
  6    19 ms    16 ms    17 ms  GBr1-p20.st6wa.ip.att.net [12.123.44.146]
  7    29 ms    32 ms    30 ms  tbr2-cl1.sffca.ip.att.net [12.122.12.113]
  8    38 ms    42 ms    40 ms  tbr1-cl3.la2ca.ip.att.net [12.122.10.26]
  9    73 ms    75 ms    74 ms  tbr1-cl2.dlstx.ip.att.net [12.122.10.49]
 10    74 ms    74 ms    75 ms  gar1-p360.dlrtx.ip.att.net [12.123.196.101]
 11    75 ms    74 ms    74 ms  12.119.136.14
 12    74 ms    76 ms    74 ms  dist-vlan31.dsr3-2.dllstx3.theplanet.com [70.85.
127.30]
 13    75 ms    73 ms    74 ms  dist-vlan22.dsr1-2.dllstx2.theplanet.com [70.85.
127.76]
 14    75 ms    74 ms    79 ms  dsr2-2-v2.dllstx4.theplanet.com [12.96.160.40]
 15    80 ms    94 ms    77 ms  gig1-0-2.tp-car9-2.dllstx4.theplanet.com [67.18.
116.86]
 16    83 ms    76 ms    78 ms  6.67-19-36.reverse.theplanet.com [67.19.36.6]

Trace complete.



WEB100 Enabled Statistics:
Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done
running 10s outbound test (client to server) . . . . . 368.39kB/s
running 10s inbound test (server to client) . . . . . . 4.14Mb/s

   ------  Client System Details  ------
OS data: Name = Windows XP, Architecture = x86, Version = 5.1
Java data: Vendor = Sun Microsystems Inc., Version = 1.4.2_04

   ------  Web100 Detailed Analysis  ------
Cable modem/DSL/T1 link found.
Link set to Full Duplex mode
Information: throughput is limited by other network traffic.
Good network cable(s) found
Normal duplex operation found.

Web100 reports the Round trip time = 54.73 msec; the Packet size = 1460 Bytes; and
There were 37 packets retransmitted, 159 duplicate acks received, and 186 SACK blocks received
The connection was idle 0 seconds (0%) of the time
This connection is network limited 99.95% of the time.
  Contact your local network administrator to report a network problem

    Web100 reports TCP negotiated the optional Performance Settings to:
RFC 2018 Selective Acknowledgment: ON
RFC 896 Nagle Algorithm: ON
RFC 3168 Explicit Congestion Notification: OFF
RFC 1323 Time Stamping: OFF
RFC 1323 Window Scaling: OFF
Packet size is preserved End-to-End
Server IP addresses are preserved End-to-End


Thanks!

WEB100 Enabled Statistics:
Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done
running 10s outbound test (client to server) . . . . . 373.55kB/s
running 10s inbound test (server to client) . . . . . . 4.09Mb/s

   ------  Client System Details  ------
OS data: Name = Windows XP, Architecture = x86, Version = 5.1
Java data: Vendor = Sun Microsystems Inc., Version = 1.4.2_04

   ------  Web100 Detailed Analysis  ------
Cable modem/DSL/T1 link found.
Link set to Full Duplex mode
No network congestion discovered.
Good network cable(s) found
Normal duplex operation found.

Web100 reports the Round trip time = 53.11 msec; the Packet size = 1460 Bytes; and
There were 55 packets retransmitted, 236 duplicate acks received, and 259 SACK blocks received
The connection stalled 1 times due to packet loss
The connection was idle 0.24 seconds (2.4%) of the time
This connection is receiver limited 4.44% of the time.
  Increasing the current receive buffer (62.0 KB) will improve performance
This connection is network limited 95.51% of the time.
  Contact your local network administrator to report a network problem

    Web100 reports TCP negotiated the optional Performance Settings to:
RFC 2018 Selective Acknowledgment: ON
RFC 896 Nagle Algorithm: ON
RFC 3168 Explicit Congestion Notification: OFF
RFC 1323 Time Stamping: OFF
RFC 1323 Window Scaling: OFF
Packet size is preserved End-to-End
Server IP addresses are preserved End-to-End

allright will do

Thanks

OK Van Buren I found that setting the RWIN to 29200 resulted in:

WEB100 Enabled Statistics:
Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done
running 10s outbound test (client to server) . . . . . 373.55kB/s
running 10s inbound test (server to client) . . . . . . 4.03Mb/s

   ------  Client System Details  ------
OS data: Name = Windows XP, Architecture = x86, Version = 5.1
Java data: Vendor = Sun Microsystems Inc., Version = 1.4.2_04

   ------  Web100 Detailed Analysis  ------
Cable modem/DSL/T1 link found.
Link set to Half Duplex mode
No network congestion discovered.
Good network cable(s) found
Normal duplex operation found.

Web100 reports the Round trip time = 53.58 msec; the Packet size = 1460 Bytes; and
There were 2 packets retransmitted, 37 duplicate acks received, and 38 SACK blocks received
The connection was idle 0 seconds (0%) of the time
This connection is receiver limited 70.62% of the time.
  Increasing the current receive buffer (28.0 KB) will improve performance
This connection is network limited 29.32% of the time.
  Contact your local network administrator to report a network problem

    Web100 reports TCP negotiated the optional Performance Settings to:
RFC 2018 Selective Acknowledgment: ON
RFC 896 Nagle Algorithm: ON
RFC 3168 Explicit Congestion Notification: OFF
RFC 1323 Time Stamping: OFF
RFC 1323 Window Scaling: OFF
Packet size is preserved End-to-End
Server IP addresses are preserved End-to-End
Information: Network Address Translation (NAT) box is modifying the Client's IP address




But my download speeds suffer bigtime with the lower rwin. Shouldn't it be quicker with less re-transmitted packets? Is having low re-transmission a trade off for higher d/l speeds?


::::::::::.. Download Stats ..::::::::::
Connection is:: 2791 Kbps about 2.8 Mbps (tested with 2992 KB)
Download Speed is:: 341 kB/s
Tested From:: http://www.testmy.net/
Test Time:: Sun Jan 30 2005 13:36:58 GMT-0800 (Pacific Standard Time)
Bottom Line:: 50X faster than 56K 1MB download in 3 sec
Validation Link:: http://testmy.net/id-NTY53EZHU


thanks!

allright cool
I'd rather keep the rwin big and have more re-transmissions

Thanks for the help!!!