Help with my download speed

OD_Hunter · Post by **OD_Hunter** » Thu Aug 07, 2003 9:25 pm

for sum reason my download speed went down i used to download at 160kbs and now i go at 120kbs.. can sumone help?

OD_Hunter · Post by **OD_Hunter** » Thu Aug 07, 2003 9:42 pm

TCP options string = 020405a001010402
MTU = 1480
MTU is optimized for Windows XP PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.
MSS = 1440
MSS is optimized for Windows XP PPPoE DSL broadband. If not, consider raising MTU to 1500 for maximum throughput.

Default Receive Window (RWIN) = 48960
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 48960

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
506880 (MSS x 44 * scale factor of 8)
253440 (MSS x 44 * scale factor of 4)
126720 (MSS x 44 * scale factor of 2)
63360 (MSS x 44)
bandwidth * delay product:

Your RcvWindow limits you to: 1958.4 kbps (244.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 783.36 kbps (97.92 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 54 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 01011100

Precedence (priority) = 100 (flash override)
Delay = 1 (low delay)
Throughput = 1 (high throughput)
Reliability = 0 (normal reliability)
Cost = 1 (low cost)

mccoffee · Post by **mccoffee** » Thu Aug 07, 2003 9:54 pm

In cablenut goto global max tcp recive window size, and tcp window size, and try the following numbers one at a time and reboot after changes.

global max tcp recive window size 58400
tcp window size 58400

global max tcp recive window size 64240
tcp window size64240

global max tcp recive window size 56940
tcp window size56940

OD_Hunter · Post by **OD_Hunter** » Fri Aug 08, 2003 10:49 am

WOW man i start downloading at 1.01MB/s!!!! MB/S!!! but then it slows down to 160kb/s

OD_Hunter · Post by **OD_Hunter** » Fri Aug 08, 2003 10:50 am

TCP options string = 020405a001010402
MTU = 1480
MTU is optimized for Windows XP PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.
MSS = 1440
MSS is optimized for Windows XP PPPoE DSL broadband. If not, consider raising MTU to 1500 for maximum throughput.

Default Receive Window (RWIN) = 64240
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 64240

For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
506880 (MSS x 44 * scale factor of 8)
253440 (MSS x 44 * scale factor of 4)
126720 (MSS x 44 * scale factor of 2)
63360 (MSS x 44)
bandwidth * delay product:

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 = 54 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 01011100

Precedence (priority) = 100 (flash override)
Delay = 1 (low delay)
Throughput = 1 (high throughput)
Reliability = 0 (normal reliability)
Cost = 1 (low cost)

mnosteele52 · Post by **mnosteele52** » Fri Aug 08, 2003 10:59 am

No don't use those settings, how many times are you going to ask for help? I'm not trying to be a jerk, but you have asked the same question in 5 or 6 different threads and never responded back to any of them letting us know what has worked and what has not, what about these settings I gave you, you told me your max latency was 384ms.

Originally posted by mnosteele52
OK if your max latency was 384ms then use the folowing settings in CableNut:

DefaultReceiveWindow = 192000
DefaultSendWindow = 16384
DisableAddressSharing = 1
InitialLargeBufferCount = 200
InitialMediumBufferCount = 480
InitialSmallBufferCount = 640
LargeBufferSize = 819200
MaxFastTransmit = 64000
MediumBufferSize = 150400
PriorityBoost = 0
SmallBufferSize = 12800
TransmitWorker = 32
FastSendDatagramThreshold = 4096
EnableFastRouteLookup = 1
EnablePMTUDiscovery = 1
IgnorePushBitsOnReceive = 0
GlobalMaxTcpWindowSize = 72000
MaxFreeTcbs = 8000
MaxHashTableSize = 16384
MaxNormLookupMemory = 5000000
SackOpts = 1
SynAttackProtect = 1
Tcp1323Opts = 1
TcpLogLevel = 1
TcpMaxDupAcks = 3
TcpMaxHalfOpen = 100
TcpMaxHalfRetried = 80
TcpRecvSegmentSize = 1440
TcpSendSegmentSize = 1440
TcpTimedWaitDelay = 30
TcpUseRFC1122UrgentPointer = 0
TcpWindowSize = 72000
MaxConnectionsPer1_0Server = 20
MaxConnectionsPerServer = 10
DefaultTTL = 64
DisableUserTOSSetting = 0
TcpMaxDataRetransmissions = 6
DefaultTOSValue = 90

PLEASE stick to one thread and let's get things straight, there is no need for multiple threads all dealing with the exact same thing.

OD_Hunter · Post by **OD_Hunter** » Fri Aug 08, 2003 1:30 pm

lol steele i download faster than i usually do now... mccoffee helped me alot thnx mccoffe and thnx mnosteele

mccoffee · Post by **mccoffee** » Fri Aug 08, 2003 1:52 pm

Stick with steeles number plus i goofed I forgot to look at ur mtu so his number will work better.