10 mbit / 1 mbit settings?

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TrevGlas
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10 mbit / 1 mbit settings?

Post by TrevGlas »

Finally got 10mbit/1mbit connection... I've been messing around with the receivewindow and I cant get more than about 7830 kb/s. When I had the 5mbps I was getting about 4850.

Got any good settings for me? :)

Trev
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TrevGlas
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Post by TrevGlas »

Btw forgot my analyzer....

TCP options string = 020405b40103030301010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default TCP Receive Window (RWIN) = 513920
RWIN Scaling (RFC1323) = 3 bits (scale factor of 6)
Unscaled TCP Receive Window = 64240

RWIN is a multiple of MSS
Other RWIN values that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of 8) <-- current value
256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)
bandwidth * delay product (Note this is not a speed test):

Your TCP Window limits you to: 20557 kbps (2570 KBytes/s) @ 200ms
Your TCP Window limits you to: 8223 kbps (1028 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 53 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.
Asus p4p800 Deluxe Mobo - Pentium 4 3.2 @ 3.6 - Thermaltake Spark7 HSF - Geil Golden Dragon PC3200 - ATI Radeon x850 XT PE 256mb - Maxtor 120 GB 8mb cache - Sound Blaster Live! 5.1 - Altec Lansing 5.1 Sattelites w/sub - Cooler Master Cavalier 3 case
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trogers
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Post by trogers »

If you are in the US, try a smaller RWIN. Maybe 128480 or 256960.
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TrevGlas
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Post by TrevGlas »

Tried both those RWINS, still max about 7400 kbps... on a 10mbit that cant be right can it?
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trogers
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Post by trogers »

Do a tracert to http://www.speedguide.net and check where in your connection ping times may be irregular and causing slow speed.
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