Cablenut - Broadbandnuts - DSLnuts

Cablenut Support => Cablenut Program Support => Topic started by: _miller_ on September 21, 2002, 11:19:00 pm

Title: Just want my bandwidth Faster
Post by: _miller_ on September 21, 2002, 11:19:00 pm
Here is my tcp/ip analyzer results, if you can, tell me what i should put in for the program.

TCP options string = 020405b401010402010303000101080a1799848700000000

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1448, which is less than MSS because of Timestamps, or other TCP/IP options used.

Default Receive Window (RWIN) = 32768
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 32768
For optimum performance, consider changing RWIN to 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)
64240 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 1310.72 kbps (163.84 KBytes/s) @ 200ms
Your RcvWindow limits you to: 524.288 kbps (65.536 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 59 hops
TTL value is ok.

Timestamps (RFC1323) = ON
Note: Timestamps add 12 bytes to the TCP header of each packet, reducing the space available for useful data.

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000



Thanx
Title: Re:Just want my bandwidth Faster
Post by: _miller_ on September 21, 2002, 11:22:13 pm
info about my comp:
Win XP
Pee4 1.6a ghz @ 2.0
256 ddr ram
32 mb ati radion
Title: Re:Just want my bandwidth Faster
Post by: mnosteele on September 21, 2002, 11:47:22 pm
Welcome to the forums ;D, what are your ISP's caps? :)
Title: Re:Just want my bandwidth Faster
Post by: _miller_ on September 22, 2002, 09:38:05 am
hmmmi could not tell u, but i usualyy get good dl speeds,
ive reacked over 450kbs, and usually get 150 - 300kbs from good websites, and on irc i usually upload at over 100kb/s, sorry i could not tell u the caps, hope this helps you!
Title: Re:Just want my bandwidth Faster
Post by: mnosteele on September 22, 2002, 09:40:36 am
OK then who is your Internet Service Provider? I know most ISPs caps. ;) ;D
Title: Re:Just want my bandwidth Faster
Post by: _miller_ on September 22, 2002, 09:43:41 am
Shaw Cable
Title: Re:Just want my bandwidth Faster
Post by: mnosteele on September 22, 2002, 09:47:05 am
Shaw is supposed to be 3000/384 that being the case try the following in Cablenut:

DefaultReceiveWindow = 384000
DefaultSendWindow =  49152
DisableAddressSharing = 1
InitialLargeBufferCount = 100
InitialMediumBufferCount = 240
InitialSmallBufferCount = 320
LargeBufferSize = 81920
MaxFastTransmit = 64000
MediumBufferSize = 15040
PriorityBoost = 0
SmallBufferSize = 1280
TransmitWorker = 32
FastSendDatagramThreshold = 4096
EnableFastRouteLookup = 1
EnablePMTUDiscovery = 1
IgnorePushBitsOnReceive = 0
GlobalMaxTcpWindowSize = 64240
MaxFreeTcbs = 8000
MaxHashTableSize = 16384
MaxNormLookupMemory = 5000000
SackOpts = 1
SynAttackProtect = 1
Tcp1323Opts = 0
TcpLogLevel = 1
TcpMaxDupAcks = 2
TcpMaxHalfOpen = 100
TcpMaxHalfRetried = 80
TcpRecvSegmentSize = 1460
TcpSendSegmentSize = 1460
TcpTimedWaitDelay = 30
TcpUseRFC1122UrgentPointer = 0
TcpWindowSize = 64240
MaxConnectionsPer1_0Server = 20
MaxConnectionsPerServer = 10
DefaultTTL = 64
DisableUserTOSSetting = 0
TcpMaxDataRetransmissions = 6
DefaultTOSValue = 92
;D :)
Title: Re:Just want my bandwidth Faster
Post by: _miller_ on September 22, 2002, 10:01:04 am
thanx for the help i did the tweak and got a little more performance outta my internet, i did a before and after test on speedtest and my before what 1.0mb/s and my after was 1.2 so i got a little increase
THANX
Title: Re:Just want my bandwidth Faster
Post by: mnosteele on September 22, 2002, 10:17:25 am
That is a little better but it should be much higher, let's see if we can get you up to speed. What is your average latency? Set your NIC duplex mode to 10mb half duplex according to my instructions here (http://www.dslnuts.com/yabbse/index.php?board=8;action=display;threadid=350) also try the other tweaks I suggest. :) ;)
Title: Re:Just want my bandwidth Faster
Post by: _miller_ on September 22, 2002, 10:18:41 am
i have no clue what my average latency is, how would i find this out?
Title: Re:Just want my bandwidth Faster
Post by: mnosteele on September 22, 2002, 10:26:20 am
It's very easy, just click on start - run and type cmd, a black DOS box will pop up, in the box type ping www.dslnuts.com (or whatever website you want to ping). Another good free utiily is PCPitstops ping utilitly here (http://www.pcpitstop.com/internet/pinger.asp) it is good becuase it will ping a range of sites in different geographical areas which is what you need to do.  :) ;D
Title: Re:Just want my bandwidth Faster
Post by: _miller_ on September 22, 2002, 10:31:10 am
i averaged the 7 averages out and the average was about 179
Title: Re:Just want my bandwidth Faster
Post by: mnosteele on September 22, 2002, 10:33:52 am
That's not bad, try making the following changes in Cablenut and see if they help any:

GlobalMaxTcpWindowSize & TcpWindowSize - 128480
Tcp1323opts - 1

Reboot to take effect and see where your speed is, also try the other things I suggested above. ;) ;D
Title: Re:Just want my bandwidth Faster
Post by: _miller_ on September 22, 2002, 10:38:47 am
i did do the 10baseT thing and i did a test on speakeasy and got
2608/256
Title: Re:Just want my bandwidth Faster
Post by: mnosteele on September 22, 2002, 10:41:28 am
That's more like it, if you got that with 64240 (which I think you did) leave your setting there.... that's about the most you will get with your caps and that is GREAT.... does it seem allot better to you? ;D ;D
Title: Re:Just want my bandwidth Faster
Post by: _miller_ on September 22, 2002, 10:48:08 am
oh ya,
thanx alot but i did do that other tweak and its goin a lil slower so im gonna put it back to what u said
and my upload is always 256kbs so i think thats what its capped at
Title: Re:Just want my bandwidth Faster
Post by: _miller_ on September 22, 2002, 10:55:24 am
so thanx a lot
i really appreciate it
you guys are tha sh!t
Title: Re:Just want my bandwidth Faster
Post by: dannjr on September 22, 2002, 04:14:38 pm

so thanx a lot
i really appreciate it
you guys are tha sh!t


Man not sure weather to laugh OR cry  ;D

thanks