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Router causing bad upload?


nsomnia

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Ive been getting about 0.6mbit upload to my friend [over msn, same isp] and to testmy.net [We both get that bad speed at this site]. Now, the connection from my ISP to my radio he said was about 2 mbits. Also dslreports.com gets about 1.8mbits. I do have a dlink router is this what is causing this? Any other ideas or testing I should do to figure out why I can only send/receive files from my friend @ 40kb/sec.

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XP

No set speeds. But the tests my ISP did on my radio got 2.5 mbit upload.

First test gets

TCP options string = 020405b401010402

MTU = 1500

MTU is fully optimized for broadband.

MSS = 1460

Maximum useful data in each packet = 1460, which equals MSS.

Default Receive Window (RWIN) = 64240

RWIN Scaling (RFC1323) = 0 bits

Unscaled Receive Window = 64240

RWIN is a multiple of MSS

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

513920 (MSS x 44 * scale factor of 8)

256960 (MSS x 44 * scale factor of 4)

128480 (MSS x 44 * scale factor of 2)

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

Your RcvWindow limits you to: 2569.6 kbps (321.2 KBytes/s) @ 200ms

Your RcvWindow limits you to: 1027.84 kbps (128.48 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 120 hops

TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349) = 00000000 (0)

Second gets

running 10s outbound test (client to server) . . . . . 837.54Kb/s

running 10s inbound test (server to client) . . . . . . 4.81Mb/s

Your PC is connected to a Cable/DSL modem

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running 10s outbound test (client to server) . . . . . 837.54kB/s

running 10s inbound test (server to client) . . . . . . 4.81Mb/s

Your PC is connected to a Cable/DSL modem

This shows a setting for 5/1 Mbps

Your RWIN is set at 64240, which is too low for 5 Mbps.

Try the ccs file with RWIN set at 128240 that I have posted at this thread:

http://www.testmy.net/forum/index.php?topic=11520.0

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Ping is 92ms with no loss.

The full test results get

WEB100 Kernel Variables:

Client: localhost/127.0.0.1

AckPktsIn: 3009

AckPktsOut: 0

BytesRetrans: 0

CongAvoid: 0

CongestionOverCount: 0

CongestionSignals: 0

CountRTT: 3001

CurCwnd: 65700

CurMSS: 1460

CurRTO: 270

CurRwinRcvd: 64240

CurRwinSent: 16304

CurSsthresh: 2147483647

DSACKDups: 0

DataBytesIn: 0

DataBytesOut: 8625680

DataPktsIn: 0

DataPktsOut: 5908

DupAcksIn: 0

ECNEnabled: 0

FastRetran: 0

MaxCwnd: 65700

MaxMSS: 1460

MaxRTO: 290

MaxRTT: 130

MaxRwinRcvd: 64240

MaxRwinSent: 16304

MaxSsthresh: 0

MinMSS: 1460

MinRTO: 270

MinRTT: 60

MinRwinRcvd: 64240

MinRwinSent: 16304

NagleEnabled: 1

OtherReductions: 0

PktsIn: 3009

PktsOut: 5908

PktsRetrans: 0

X_Rcvbuf: 103424

RcvWinScale: 7

SACKEnabled: 3

SACKsRcvd: 0

SendStall: 0

SlowStart: 43

SampleRTT: 70

SmoothedRTT: 70

X_Sndbuf: 103424

SndWinScale: 0

SndLimTimeRwin: 9417838

SndLimTimeCwnd: 607762

SndLimTimeSender: 2588

SndLimTransRwin: 1

SndLimTransCwnd: 1

SndLimTransSender: 1

SndLimBytesRwin: 8440260

SndLimBytesCwnd: 185420

SndLimBytesSender: 0

SubsequentTimeouts: 0

SumRTT: 217880

Timeouts: 0

TimestampsEnabled: 0

WinScaleRcvd: 0

WinScaleSent: 7

DupAcksOut: 0

StartTimeUsec: 504518

Duration: 10030103

c2sData: 3

c2sAck: 3

s2cData: 9

s2cAck: 3

half_duplex: 1

link: 10

congestion: 0

bad_cable: 0

mismatch: 0

spd: 0.00

bw: 153.42

loss: 0.000001000

avgrtt: 72.60

waitsec: 0.00

timesec: 10.00

order: 0.0000

rwintime: 0.9391

sendtime: 0.0003

cwndtime: 0.0606

rwin: 0.4901

swin: 0.7891

cwin: 0.5013

rttsec: 0.072602

Sndbuf: 103424

aspd: 5.51542

Checking for mismatch on uplink

(speed > 50 [0>50], (xmitspeed < 5) [1.29<5]

(rwintime > .9) [0.93>.9], (loss < .01) [1.0E<.01]

Checking for excessive errors condition

(loss/sec > .15) [1.0E>.15], (cwndtime > .6) [0.06>.6],

(loss < .01) [1.0E<.01], (MaxSsthresh > 0) [0>0]

Checking for 10 Mbps link

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

(xmitspeed < 9.5) [1.29<9.5] (loss < .01) [1.0E<.01], (mylink > 0) [10.0>0]

Checking for Wireless link

(sendtime = 0) [3.0E=0], (speed < 5) [0<5]

(Estimate > 50 [153.42>50], (Rwintime > 90) [0.93>.90]

(RwinTrans/CwndTrans = 1) [1/1=1], (mylink > 0) [10.0>0]

Checking for DSL/Cable Modem link

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

(SendTime = 0) [3.0E-4=0], (mylink > 0) [10.0>0]

Checking for half-duplex condition

(rwintime > .95) [0.93>.95], (RwinTrans/sec > 30) [0.1>30],

(SenderTrans/sec > 30) [0.1>30], OR (mylink <= 10) [10.0<=10]

Checking for congestion

(cwndtime > .02) [0.06>.02], (mismatch = 0) [0=0]

(MaxSsthresh > 0) [0>0]

estimate = 153.42 based on packet size = 11Kbits, RTT = 72.6msec, and loss = 1.0E-6

The theoretical network limit is 153.42 Mbps

The NDT server has a 101.0 KByte buffer which limits the throughput to 10.86 Mbps

Your PC/Workstation has a 62.0 KByte buffer which limits the throughput to 6.75 Mbps

The network based flow control limits the throughput to 6.90 Mbps

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

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

Edit: It seems right now,

Connection is:: 1744 Kbps about 1.7 Mbps (tested with 2992 kB)

Upload Speed is:: 213 kB/s

Tested From:: https://testmy.net (server1)

Test Time:: Tue Jan 31 2006 03:00:55 GMT-0700 (Mountain Standard Time)

Bottom Line:: 31X faster than 56K 1MB upload in 4.81 sec

Diagnosis: Awesome! 20% + : 145.29 % faster than the average for host (airsurfer.ca)

We will have to see if it holds up till the morning.

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From the test reports, your comp is already tweak for a 2 Mbps download speed and I think this is your subscribed speed too.

"Your PC/Workstation has a 62.0 KByte buffer which limits the throughput to 6.75 Mbps The network based flow control limits the throughput to 6.90 Mbps"

If you had a subscribed speed of up to 6 Mbps, you will be able to achieve at least 5 Mbps in your speed test.

Do not forget that heavy traffic will slow you down, especially between 6pm and midnight.

To see how slow your network has become, do the nitro test and lookout for

"The network based flow control limits the throughput to ___ Mbps"

Your download speed most likely will be about 85-90% of this value.

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