need good pings, not worried about speed

Apple McNutFace · Post by **Apple McNutFace** » Sat Jun 22, 2002 10:18 am

Hi

I was wondering what settings would be best for decreasing and stabilizing my pings. I play alot of online games and ping pretty much means everything. I'm not worried about losing speed, as long as my pings are good. I read in the editorials that a smaller MTU is sometimes better for online games, can anybody ellaborate on this?

I have cox.net

TCP options string = 020405b40103030201010402

MTU = 1500
MTU is fully optimized for broadband.

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

Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 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)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 52 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

mnosteele52 · Post by **mnosteele52** » Sat Jun 22, 2002 11:09 am

There isn't much you can do to lower your latency, if you are using 2K or XP you can use the afd buffers that can help.

Apple McNutFace · Post by **Apple McNutFace** » Sat Jun 22, 2002 11:22 am

how do I use afd buffers?

mnosteele52 · Post by **mnosteele52** » Sat Jun 22, 2002 11:27 am

For Cox download Cablenut and try the following settings:

DefaultReceiveWindow = 36500/46720/55480/74460/112420/186880
DefaultSendWindow = 32120
InitialLargeBufferCount = 1000*
InitialMediumBufferCount = 3000*
InitialSmallBufferCount = 5000*
LargeBufferSize = 409600*
MaxFastTransmit = 36500/46720/55480/74460/112420/186880
MediumBufferSize = 150400*
PriorityBoost = 0
SmallBufferSize = 6400*
TransmitWorker = 32
FastSendDatagramThreshold = 1024
EnableFastRouteLookup = 1
EnablePMTUDiscovery = 1
GlobalMaxTcpWindowSize = 36500/46720/55480/74460/112420/186880
MaxFreeTcbs = 8000
MaxHashTableSize = 16384
MaxNormLookupMemory = 5000000
SackOpts = 1
Tcp1323Opts = 0 (or 1 if using RWIN of 65535 or higher)
TcpMaxDupAcks = 2
TcpRecvSegmentSize = 1460
TcpSendSegmentSize = 1460
TcpTimedWaitDelay = 30
TcpUseRFC1122UrgentPointer = 0
TcpWindowSize = 36500/46720/55480/74460/112420/186880
MaxConnectionsPer1_0Server = 40
MaxConnectionsPerServer = 20
DefaultTTL = 64

*AFD buffers - if using RWIN of 100,000 or higher try these buffer sizes:

InitialLargeBufferCount = 100
InitialMediumBufferCount = 300
InitialSmallBufferCount = 500
LargeBufferSize = 40960
MediumBufferSize = 15040
SmallBufferSize = 640

CaptainSpeleo · Post by **CaptainSpeleo** » Sun Jun 23, 2002 7:43 am

Mnosteele:

Cablenut 4.08 doesn't have any of the buffer settings for Windows 98SE. Are these settings only for Windows XP? Can they be manually entered in the Windows 98SE Registry?

mnosteele52 · Post by **mnosteele52** » Sun Jun 23, 2002 9:21 am

Nope AFD buffers are only valid in NT based OS's.

CaptainSpeleo · Post by **CaptainSpeleo** » Mon Jun 24, 2002 3:19 am

Thanks for the info.

Old Fart · Post by **Old Fart** » Mon Jun 24, 2002 11:04 am

Again, you are optimizing your connection to your ISP.

Beyond that, short of changing the Service Level Agreement between your ISP and their upstream provider, there is nothing you can do about latency or speed past their router.