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Velinestra
join:2000-11-22
Morganville, NJ

Velinestra

Member

Windows ME tweak

Here's what I have:

(1) NETGEAR FA310TX Fast Ethernet PCI Adapter
(2) EnterNet 300 v1.41 (Network TeleSystems PPPoE Adapter)
(3) Zyxel Prestige 642M bridge

I ran the Tweak Test and Speed Test using 3 different settings:

(1) WinME default RWIN 16384 and PPPoE at 1454:

* Please wait .. collecting data
* Your RWIN reads as 16384
* All tests passed perfectly.
* We recommend you leave everything as it is!
Detail..
TCPopts hex string is 0204058601010402
Max Segment Size is 1414
Your MTU is set ok
SACK Permitted (RFC2018)
Ping stability 37 38 38 31 34 57 37 38 33 36
Quick packet-loss tested ok
DefaultRcvWindow (RWIN) is 16384
Your RWIN limits you @37.9ms to 3458kbps
Your RWIN limits you @200ms to 655kbps
Your Path MTU Discovery is ON
Max sized data packet from you 1454
* End

Test running..Downloaded 60900bytes in 1320ms
Downloaded 696000bytes in 11590ms
First guess is 480kbps
slow-ish speed line - now test 500k
Downloaded 1109250bytes in 18120ms
Upload got ok 1 bytes uploaded
Uploaded 1bytes in 390ms
Upload got ok 1 bytes uploaded
Uploaded 1bytes in 270ms
Upload got ok 1 bytes uploaded
Uploaded 1bytes in 330ms
Upload got ok 50000 bytes uploaded
Uploaded 50000bytes in 5160ms

** Speed 489(down)/81(up) kbps **
(At least 9 times faster than a 56k modem)
Logging result
Finish.

(2) WinME RWIN at 32767 and PPPoE at 1492:

* Please wait .. collecting data
* Your RWIN reads as 32767
* All tests passed perfectly.
* We recommend you leave everything as it is!
Detail..
TCPopts hex string is 020405ac01010402
Max Segment Size is 1452
Your MTU is set ok
SACK Permitted (RFC2018)
Ping stability 32 35 37 31 33 34 32 31 33 30
Quick packet-loss tested ok
DefaultRcvWindow (RWIN) is 32767
Your RWIN limits you @32.8ms to 7991kbps
Your RWIN limits you @200ms to 1310kbps
Your Path MTU Discovery is ON
Max sized data packet from you 1492
* End

Test running..Downloaded 60900bytes in 101120ms
Seems as slow as a dialup
Upload got ok 1 bytes uploaded
Uploaded 1bytes in 330ms
Upload got ok 1 bytes uploaded
Uploaded 1bytes in 1710ms
Upload got ok 1 bytes uploaded
Uploaded 1bytes in 270ms
Upload got ok 50000 bytes uploaded
Uploaded 50000bytes in 5220ms

** Speed 4(down)/113(up) kbps **
About modem speed!
Logging result
Finish.

(3) WinME default RWIN at 16384 and PPPoE at 1492:

* Please wait .. collecting data
* Your RWIN reads as 16384
* All tests passed perfectly.
* We recommend you leave everything as it is!
Detail..
TCPopts hex string is 020405ac01010402
Max Segment Size is 1452
Your MTU is set ok
SACK Permitted (RFC2018)
Ping stability 33 36 39 39 38 32 34 33 33 31
Quick packet-loss tested ok
DefaultRcvWindow (RWIN) is 16384
Your RWIN limits you @34.8ms to 3766kbps
Your RWIN limits you @200ms to 655kbps
Your Path MTU Discovery is ON
Max sized data packet from you 1492
* End

Test running..Downloaded 60900bytes in 1430ms
Downloaded 696000bytes in 11810ms
First guess is 471kbps
slow-ish speed line - now test 500k
Downloaded 1109250bytes in 21910ms
Upload got ok 1 bytes uploaded
Uploaded 1bytes in 170ms
Upload got ok 1 bytes uploaded
Uploaded 1bytes in 160ms
Upload got ok 1 bytes uploaded
Uploaded 1bytes in 390ms
Upload got ok 50000 bytes uploaded
Uploaded 50000bytes in 5050ms

** Speed 405(down)/81(up) kbps **
(At least 8 times faster than a 56k modem)
Logging result
Finish.


Can someone explain to me what happened? Thanks!

jack b
Gone Fishing
MVM
join:2000-09-08
Cape Cod

jack b

MVM

It appears you are getting sent packets fragmented with the ipmtu set at 1492.

larsfum
Premium Member
join:2000-09-01
Saint Petersburg, FL

larsfum to Velinestra

Premium Member

to Velinestra
You did a good job of supplying most of the needed information, but what speeds are you paying for? Try this tweak to get the correct MTU for your connection:
»KOBE'S CHRONICLES #1: SETTING THE MTU
It includes a couple of screen shots so that you can see exactly where you make the changes.

Looks like you found the correct RWIN at 16384. Mighty nice pings too.
Smith5
Premium Member
join:2000-07-13

Smith5 to Velinestra

Premium Member

to Velinestra
Did you use the same server (speed test) for all three tests?

Velinestra
join:2000-11-22
Morganville, NJ

Velinestra

Member

yup, same server for all 3 tests
Velinestra

Velinestra to larsfum

Member

to larsfum
I've got basic ADSL, 640/90. Thanks for the link. I'll go check it out.