Can somebody help me with tweaks

[anderb]

Hello friends I

[trogers]

Do these 2 tests and post your results so that we have the info to help you:

https://www.speedguide.net/analyzer.php

http://nitro.ucsc.edu/

[anderb]

Hello,here are the results

TCP options string = 020405840103030101010402

MTU = 1452

MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput. If you are using a router, it could be limiting your MTU regardless of Registry settings.

MSS = 1412

MSS is not optimized for broadband. Consider increasing your MTU value.

Default TCP Receive Window (RWIN) = 124256

RWIN Scaling (RFC1323) = 1 bits (scale factor of 2)

Unscaled TCP Receive Window = 62128

RWIN is a multiple of MSS

Other values for RWIN that might work well with your current MTU/MSS:

519616 (MSS x 46 * scale factor of

259808 (MSS x 46 * scale factor of 4)

129904 (MSS x 46 * scale factor of 2)

64952 (MSS x 46)

bandwidth * delay product (Note this is not a speed test):

Your TCP Window limits you to: 4970.24 kbps (621.28 KBytes/s) @ 200ms

Your TCP Window limits you to: 1988.096 kbps (248.512 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 35 hops

TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349) = 11110000 (240)

Precedence (priority) = 111 (Network Control)

Delay = 1 (low delay)

Throughput = 0 (normal throughput)

Reliability = 0 (normal reliability)

Cost = 0 (normal cost)

Check bit = 0 (correct, 8th checking bit must be zero)

DiffServ (RFC 2474) = No valid DiffServ equivalent. See the TCP Optimizer documentation, or RFCs 2474, 2475, 2597, 2598, 2873.

TCP/Web100 Network Diagnostic Tool v5.3.3d

click START to begin

Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done

running 10s outbound test (client to server) . . . . . 301.83Kb/s

running 10s inbound test (server to client) . . . . . . 445.82kb/s

Your PC is connected to a Cable/DSL modem

Information: The receive buffer should be 284.97 Kbytes to maximize throughput

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 = 778.18 msec; the Packet size = 1412 Bytes; and

There were 37 packets retransmitted, 85 duplicate acks received, and 108 SACK blocks received

The connection was idle 0 seconds (0%) of the time

This connection is receiver limited 28.86% of the time.

  Increasing the the client's receive buffer (121.0 KB) will improve performance

This connection is network limited 71.11% of the time.

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: ON

Information: Network Middlebox is modifying MSS variable

Server IP addresses are preserved End-to-End

Information: Network Address Translation (NAT) box is modifying the Client's IP address

Server says [201.10.42.218] but Client says [10.1.1.5]

WEB100 Kernel Variables:

Client: localhost/127.0.0.1

AckPktsIn: 254

AckPktsOut: 0

BytesRetrans: 52244

CongAvoid: 18

CongestionOverCount: 0

CongestionSignals: 2

CountRTT: 148

CurCwnd: 18356

CurMSS: 1412

CurRTO: 1400

CurRwinRcvd: 124256

CurRwinSent: 16304

CurSsthresh: 15532

DSACKDups: 0

DataBytesIn: 0

DataBytesOut: 632576

DataPktsIn: 0

DataPktsOut: 448

DupAcksIn: 85

ECNEnabled: 0

FastRetran: 2

MaxCwnd: 125668

MaxMSS: 1412

MaxRTO: 2270

MaxRTT: 1860

MaxRwinRcvd: 124256

MaxRwinSent: 16304

MaxSsthresh: 62128

MinMSS: 1412

MinRTO: 680

MinRTT: 260

MinRwinRcvd: 62128

MinRwinSent: 16304

NagleEnabled: 1

OtherReductions: 0

PktsIn: 254

PktsOut: 448

PktsRetrans: 37

X_Rcvbuf: 103424

RcvWinScale: 7

SACKEnabled: 3

SACKsRcvd: 108

SendStall: 0

SlowStart: 99

SampleRTT: 300

SmoothedRTT: 320

X_Sndbuf: 103424

SndWinScale: 1

SndLimTimeRwin: 3019613

SndLimTimeCwnd: 7440087

SndLimTimeSender: 2596

SndLimTransRwin: 1

SndLimTransCwnd: 2

SndLimTransSender: 1

SndLimBytesRwin: 73424

SndLimBytesCwnd: 559152

SndLimBytesSender: 0

SubsequentTimeouts: 0

SumRTT: 115170

Timeouts: 0

TimestampsEnabled: 0

WinScaleRcvd: 1

WinScaleSent: 7

DupAcksOut: 0

StartTimeUsec: 464922

Duration: 10465652

c2sData: 2

c2sAck: 2

s2cData: 9

s2cAck: 2

half_duplex: 0

link: 100

congestion: 0

bad_cable: 0

mismatch: 0

spd: 0.00

bw: 0.21

loss: 0.004464286

avgrtt: 778.18

waitsec: 0.00

timesec: 10.00

order: 0.3346

rwintime: 0.2886

sendtime: 0.0002

cwndtime: 0.7111

rwin: 0.9480

swin: 64.0000

cwin: 0.9588

rttsec: 0.778176

Sndbuf: 8388608

aspd: 1.93318

Checking for mismatch on uplink

(speed > 50 [0>50], (xmitspeed < 5) [0.30<5]

(rwintime > .9) [0.28>.9], (loss < .01) [0.00<.01]

Checking for excessive errors condition

(loss/sec > .15) [4.46>.15], (cwndtime > .6) [0.71>.6],

(loss < .01) [0.00<.01], (MaxSsthresh > 0) [62128>0]

Checking for 10 Mbps link

(speed < 9.5) [0<9.5], (speed > 3.0) [0>3.0]

(xmitspeed < 9.5) [0.30<9.5] (loss < .01) [0.00<.01], (mylink > 0) [3.0>0]

Checking for Wireless link

(sendtime = 0) [2.0E=0], (speed < 5) [0<5]

(Estimate > 50 [0.21>50], (Rwintime > 90) [0.28>.90]

(RwinTrans/CwndTrans = 1) [1/2=1], (mylink > 0) [3.0>0]

Checking for DSL/Cable Modem link

(speed < 2) [0<2], (SndLimTransSender = 0) [1=0]

(SendTime = 0) [2.0E-4=0], (mylink > 0) [3.0>0]

Checking for half-duplex condition

(rwintime > .95) [0.28>.95], (RwinTrans/sec > 30) [0.1>30],

(SenderTrans/sec > 30) [0.1>30], OR (mylink <= 10) [3.0<=10]

Checking for congestion

(cwndtime > .02) [0.71>.02], (mismatch = 0) [0=0]

(MaxSsthresh > 0) [62128>0]

estimate = 0.21 based on packet size = 11Kbits, RTT = 778.18msec, and loss = 0.004464286

The theoretical network limit is 0.21 Mbps

The NDT server has a 8192.0 KByte buffer which limits the throughput to 82.24 Mbps

Your PC/Workstation has a 121.0 KByte buffer which limits the throughput to 1.21 Mbps

The network based flow control limits the throughput to 1.23 Mbps

Client Data reports link is 'T1', Client Acks report link is 'T1'

Server Data reports link is '10 Gig', Server Acks report link is 'T1'

[trogers]

I believe your subscribed speed is 6000 Kbps down and your setting has been tweaked for MTU 1452.

There are 2 items in the test reports that point to the cause of slowdown:

Your RTT value of 778 ms is high. Usual value from overseas should not exceed 300 ms.

Please do a tracert so that we may try to find where the high latency lies.

Your MTU of 1452 is not optimum for DSL. Usual values are 1492 and 1480.

We can try to use the TCP Optimizer to set the MTU to its highest value if this value is not a limitation imposed by your modem/router. In the latter case, adjustment has to be made by tweaking the driver of the hardware.

Download the TCP Optimizer at www.speedguide.net and do the following:

General Settings tab:

Custom settings - check

Modify All Network Adapters - check

network adapter selection - your NIC

MTU - 1500

TTL - 64

TCP Receive Window - blank

MTU Discovery - Yes

Black Hole Detect - No

Selective Acks - Yes

Max Duplicate ACKs - 2

TCP 1323 Options:

Windows Scaling - uncheck

Timestamps - uncheck

Advanced Settings tab:

Max Connections per Server - 10

Max Connections per 1.0 Server - 20

LocalPriority - 5

Host Priority - 6

DNSPriority - 7

NetbtPriority - 8

Lan Browsing speedup - optimized

QoS: NonBestEffortLimit - 0

ToS: DisableUserTOSSetting - 0

ToS: DefaultTOSValue - 240

MaxNegativeCacheTtl - 0

NetFailureCacheTime - 0

NegativeSOACache Time - 0

LAN Request Buffer Size - 32768

Then select "Apply Changes" and reboot to take effect

[anderb]

I

[trogers]

Do the tracert and post your results.

click 'start' and 'run' and type "cmd" and click 'ok'

A DOS black screen will appear and after c:

type "tracert www.testmy.net" and press 'enter'

[anderb]

Microsoft Windows XP [vers

[trogers]

Do you have any speedtest sites in your country?

The gateway between Brazil and the US is rather busy. That may be the reason for your low score when testing at USA sites.

[trogers]

You can do the reverse traceroute from the US to your IP address and see the high latency (>500 ms) at the hop between USA and Brazil.

Go to this link for reverse traceroute:

http://www.dnsstuff.com/

[anderb]

Here are the results

Generated by www.DNSstuff.com at 23:24:50 GMT on 12 Feb 2006.

Hop T1 T2 T3 Best Graph IP Hostname Dist TTL Ctry Time

1 0 0 0 0.4 ms

66.36.240.2 AS14361

HOPONE-DCA c-vl102-d1.acc.dca2.hopone.net. 255 US Unknown: 832b76c8

2 0 0 0 0.4 ms [+0ms]

66.36.224.233 AS0

IANA-RSVD-0 gec2.core2.dca2.hopone.net. 0 miles [+0] 254 US Unknown: 83082bc2

3 1 1 1 1.4 ms [+1ms]

66.36.224.34 AS0

IANA-RSVD-0 ge2-0-241.core1.iad1.hopone.net. 0 miles [+0] 253 US Unknown: 85074c95

4 2 1 1 1.6 ms [+0ms]

206.223.115.107 AS0

IANA-RSVD-0 ge-3-0-grtwaseq1.ri.telefonica-data.net. 0 miles [+0] 252 US Unix: 23:24:57.858

5 6 7 6 6.7 ms [+5ms]

213.140.37.210 AS12956

RIPE-ASNBLOCK8 ge2-1-0-0-grtwaseq2.red.telefonica-wholesale.net. 0 miles [+0] 251 ES Unix: 23:24:57.896

6 46 37 77 37 ms [+30ms]

213.140.43.126 AS12956

RIPE-ASNBLOCK8 so-6-1-0-0-grtmiabr4.red.telefonica-wholesale.net. 0 miles [+0] 251 ES Unix: 23:24:58.170

7 148 148 148 132 ms [+94ms]

213.140.36.66 AS12956

RIPE-ASNBLOCK8 so6-1-0-0-grtsaosi2.red.telefonica-wholesale.net. 0 miles [+0] 250 ES Unix: 23:24:58.383

8 180 149 149 132 ms [+0ms]

213.140.51.226 AS12956

RIPE-ASNBLOCK8 te_brasil-6-3-2-0-grtsaosi2.red.telefonica-wholesale.net. 0 miles [+0] 250 ES [Router did not respond]

9 141 132 145 132 ms [+0ms]

200.148.160.134 AS10429

LACNIC-10429 200-148-160-134.bbone.tdatabrasil.net.br. 0 miles [+0] 246 BR [Router did not respond]

10 155 132 135 132 ms [+0ms]

200.221.30.17 AS15201

LACNIC-15201 fr1-border2.ix.uol.com.br. 0 miles [+0] 247 BR [Router did not respond]

11 140 * * 140 ms [+8ms]

200.221.2.45 AS15201

LACNIC-15201

[Reached Destination]home.uol.com.br. 0 miles [+0] 54 BR [Router did not respond]

12

13

14

15

Analysis:

Number of hops: 11

Last hop responding to ICMP: 11, UDP: 10, TCP: 10.

The destination appears to block unwanted UDP packets.

The destination appears to block unwanted TCP packets.

[anderb]

Here are the results

Generated by www.DNSstuff.com at 23:24:50 GMT on 12 Feb 2006.

Hop T1 T2 T3 Best Graph IP Hostname Dist TTL Ctry Time

1 0 0 0 0.4 ms

66.36.240.2 AS14361

HOPONE-DCA c-vl102-d1.acc.dca2.hopone.net. 255 US Unknown: 832b76c8

2 0 0 0 0.4 ms [+0ms]

66.36.224.233 AS0

IANA-RSVD-0 gec2.core2.dca2.hopone.net. 0 miles [+0] 254 US Unknown: 83082bc2

3 1 1 1 1.4 ms [+1ms]

66.36.224.34 AS0

IANA-RSVD-0 ge2-0-241.core1.iad1.hopone.net. 0 miles [+0] 253 US Unknown: 85074c95

4 2 1 1 1.6 ms [+0ms]

206.223.115.107 AS0

IANA-RSVD-0 ge-3-0-grtwaseq1.ri.telefonica-data.net. 0 miles [+0] 252 US Unix: 23:24:57.858

5 6 7 6 6.7 ms [+5ms]

213.140.37.210 AS12956

RIPE-ASNBLOCK8 ge2-1-0-0-grtwaseq2.red.telefonica-wholesale.net. 0 miles [+0] 251 ES Unix: 23:24:57.896

6 46 37 77 37 ms [+30ms]

213.140.43.126 AS12956

RIPE-ASNBLOCK8 so-6-1-0-0-grtmiabr4.red.telefonica-wholesale.net. 0 miles [+0] 251 ES Unix: 23:24:58.170

7 148 148 148 132 ms [+94ms]

213.140.36.66 AS12956

RIPE-ASNBLOCK8 so6-1-0-0-grtsaosi2.red.telefonica-wholesale.net. 0 miles [+0] 250 ES Unix: 23:24:58.383

8 180 149 149 132 ms [+0ms]

213.140.51.226 AS12956

RIPE-ASNBLOCK8 te_brasil-6-3-2-0-grtsaosi2.red.telefonica-wholesale.net. 0 miles [+0] 250 ES [Router did not respond]

9 141 132 145 132 ms [+0ms]

200.148.160.134 AS10429

LACNIC-10429 200-148-160-134.bbone.tdatabrasil.net.br. 0 miles [+0] 246 BR [Router did not respond]

10 155 132 135 132 ms [+0ms]

200.221.30.17 AS15201

LACNIC-15201 fr1-border2.ix.uol.com.br. 0 miles [+0] 247 BR [Router did not respond]

11 140 * * 140 ms [+8ms]

200.221.2.45 AS15201

LACNIC-15201

[Reached Destination]home.uol.com.br. 0 miles [+0] 54 BR [Router did not respond]

12

13

14

15

Analysis:

Number of hops: 11

Last hop responding to ICMP: 11, UDP: 10, TCP: 10.

The destination appears to block unwanted UDP packets.

The destination appears to block unwanted TCP packets.

What CCS did you talk about before?is it about TCPOptimizer one?

[trogers]

This is the value I just received using IP Address (201.3.194.254)  from your tracert:

1 0 0 0 0.4 ms

66.36.240.2 AS14361

HOPONE-DCA c-vl102-d1.acc.dca2.hopone.net. 255 US Unknown: 8331a397

2 0 0 0 0.4 ms [+0ms]

66.36.224.232 AS0

IANA-RSVD-0 gec2.core1.dca2.hopone.net. 0 miles [+0] 254 US Unknown: 85213cde

3 0 0 0 0.4 ms [+0ms]

66.36.224.233 AS0

IANA-RSVD-0 gec2.core2.dca2.hopone.net. 0 miles [+0] 254 US Unknown: 830e58ac

4 3 1 1 1.5 ms [+1ms]

66.36.224.185 AS0

IANA-RSVD-0 iar2-ge-2-0-0.washington.savvis.net. 0 miles [+0] 252 US Unix: 23:31:42.546

5 1 1 6 1.6 ms [+0ms]

206.24.226.97 AS3561

SAVVIS bcs1-loopback.washington.savvis.net. 0 miles [+0] 252 US Unix: 23:31:42.617

6 19 2 15 2.6 ms [+1ms]

204.70.192.53 AS3561

SAVVIS dcr1-so-3-0-0.atlanta.savvis.net. 0 miles [+0] 250 US Unix: 23:31:43.356

7 15 28 16 15 ms [+12ms]

204.70.192.57 AS3561

SAVVIS dcr2-so-7-2-0.atlanta.savvis.net. 0 miles [+0] 251 US Unix: 23:31:43.369

8 31 27 27 27 ms [+12ms]

208.172.99.94 AS3561

SAVVIS dpr1-so-1-1-0.miamimit.savvis.net. 0 miles [+0] 248 US Unix: 23:31:43.438

9 38 28 27 27 ms [+0ms]

208.172.97.170 AS3561

SAVVIS dpr1-so-0-1-0.miamimit.savvis.net. 0 miles [+0] 248 US Unix: 23:31:43.479

10 390 28 27 27 ms [+0ms]

208.172.103.66 AS3561

SAVVIS bpr2-as0.miamimit.savvis.net. 0 miles [+0] 246 US Unix: 23:31:43.516

11 452 376 376 376 ms [+348ms]

208.172.108.86 AS3561

SAVVIS unknown.savvis.net 0 miles [+0] 247 US Unix: 23:31:44.171

12 475 * * 475 ms [+99ms]

201.3.194.254 AS8167

LACNIC-8167 [Reached Destination]brt-l10-paemt704-vrres.t.brasiltelecom.net.br.

[trogers]

Your RWIN is set to 124256 which is your MSS 1412 x 88. This is the optimum tweak setting for your bandwidth 6000 Kbps with latency range not more than 150 ms.

Here is a ccs file for latency range up to 300 ms.

Download Cablenut Adjuster program from www.cablenut.com and open the ccs file.

Click 'Save to Registry', exit and reboot comp to take effect.

[anderb]

Thanks dear friend!!