satarno

mnosteele52 · Post by **mnosteele52** » Wed Sep 25, 2002 5:13 pm

Originally posted by satarno
HI THERE
SIR .. I really need your help .. i am using adsl (PPOoE) with winXP pro >> i have reached MTU >1492 one time but when i did recover from a data lost i am having trouble achieving my mtu
i have tried many tweaks and regedit from what you said but nothing work

here is my TCP/IP >>

TCP options string = 020405500103030001010402

MTU = 1400
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.

MSS = 1360
Maximum useful data in each packet = 1360, which equals MSS.
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.

Default Receive Window (RWIN) = 4288
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 4288
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
522240 (MSS x 48 * scale factor of 8)
261120 (MSS x 48 * scale factor of 4)
130560 (MSS x 48 * scale factor of 2)
65280 (MSS x 48)

bandwidth * delay product:
Your RcvWindow limits you to: 171.52 kbps (21.44 KBytes/s) @ 200ms
Your RcvWindow limits you to: 68.608 kbps (8.576 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.

MTU Discovery (RFC1191) = OFF

Time to live left = 45 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 01011100
Precedence (priority) = 010 (immediate)
Delay = 1 (low delay)
Throughput = 1 (high throughput)
Reliability = 1 (high reliability)
Cost = 0 (normal cost)

BTW> i could not find the key /class/ under /services/ in my regestry ..
my download as my ISP SAID >> 1500/256 kbps
iam downloading now on 56 kbps

and when i tried to corect my NIC TO 100mb full ..COMES ERROR when i wanna connect : THE NETWORK CABLE UNPLUGED

PLEASE HELP ME AND ASK ME WHAT YOU WANNA KNOW MORE

Welome to Speedguide

. OK, first let's get your MTU straight, AOHELL is the only ISP I know of that uses a MTU of 1400, is AOL installed on your pc or has it ever been installed? If it is installed then remove it from add/remove programs in the control panel and then look in your registry here to change the MTU value:

HKEY_LOCAL_MACHINE\ SYSTEM\CurrentControlSet\ Services\NdisWan\ Parameters\Protocols\0 (delete the Protocol MTU value)

Double click on "Protocol MTU" Click on "Decimal" -> and reset it to 1480 or 1492 and reboot.

Your MTU should be 1480 if you are using XP's native PPPoE software or it should be 1492 if you are using your ISP's software.

Once we get your MTU correct we will work on the rest of your settings.

satarno · Post by **satarno** » Wed Sep 25, 2002 7:29 pm

MAN>> THANK YOU VERY MUCH .. GOD BLESS YOU AND BE WITH YOU

TCP options string = 020405ac010303030101080a000000000000000001010402

MTU = 1492
MTU is optimized for PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.

MSS = 1452
Maximum useful data in each packet = 1452, which equals MSS.
MSS is optimized for PPPoE DSL broadband. If not, consider raising MTU to 1500 for maximum throughput.

Default Receive Window (RWIN) = 321088
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 40136
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
511104 (MSS x 44 * scale factor of 8)
255552 (MSS x 44 * scale factor of 4)
127776 (MSS x 44 * scale factor of 2)
63888 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 12843.52 kbps (1605.44 KBytes/s) @ 200ms
Your RcvWindow limits you to: 5137.408 kbps (642.176 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 46 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)= 01011100
Precedence (priority) = 010 (immediate)
Delay = 1 (low delay)
Throughput = 1 (high throughput)
Reliability = 1 (high reliability)
Cost = 0 (normal cost)

thank you very much ..
iam using RASPPPOE

satarno · Post by **satarno** » Wed Sep 25, 2002 7:31 pm

hi there sir ..
MY MTU is fix but my download is now getting worst than before
what's wrong?

mnosteele52 · Post by **mnosteele52** » Wed Sep 25, 2002 7:37 pm

OK now lets get everything else straight, try the following settings in Cablenut:

BcastNameQueryCount - 1
BcastQueryTimeout - 100
BSDUrgent - 1
CacheTimeout - 600000
DefaultRecvWindow - 37752 or 52272 or 63888
DefaultTTL - 64
EnableDNS - 0
GlobalMaxTcpWindoSize - 37752 or 52272 or 63888
KeepAliveInterval - 500
KeepAliveTime - 14400000
Lanabase - 0
LocalCopyMade - 1
MaxConnections - 64
MaxConnectRetries - 5
MaxDataRetries - 64
NameTableSize - 255
NameSrvQueryTimeout - 100
PMTUBlackHoleDetect - 0
PMTUDiscovery - 1
RoutingBufSize - 146432
RoutingPackets - 100
SackOpts - 1
SessionKeepAlive - 7200
SessionTableSize - 255
Size/Small/Medium/Large - 3
Tcp1323Opts - 0
TcpTimedWaitDelay - 30
MaxDupAcks - 2
DefaultTOS - 92
IGMPLevel - 2
MaxConnectionsPer1_0Server - 20
MaxConnectionsPerServer - 10

Also set your NIC duplex mode to 10mb half duplex mode according to my instructions in my Help & Tips link.

mnosteele52 · Post by **mnosteele52** » Wed Sep 25, 2002 7:51 pm

OOOPS BIG mistake on my part, I forgot you were using XP.... try these settings instead..... it's been a LOOOONG day.

DefaultReceiveWindow = 192512
DefaultSendWindow = 32768
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 = 37752 or 52272 or 63888
MaxFreeTcbs = 8000
MaxHashTableSize = 16384
MaxNormLookupMemory = 5000000
SackOpts = 1
SynAttackProtect = 1
Tcp1323Opts = 0
TcpLogLevel = 1
TcpMaxDupAcks = 2
TcpMaxHalfOpen = 100
TcpMaxHalfRetried = 80
TcpRecvSegmentSize = 1452
TcpSendSegmentSize = 1452
TcpTimedWaitDelay = 30
TcpUseRFC1122UrgentPointer = 0
TcpWindowSize = 37752 or 52272 or 63888
MaxConnectionsPer1_0Server = 20
MaxConnectionsPerServer = 10
DefaultTTL = 64
DisableUserTOSSetting = 0
TcpMaxDataRetransmissions = 6
DefaultTOSValue = 92

satarno · Post by **satarno** » Wed Sep 25, 2002 7:55 pm

many values of what you state here don't exist on the cablenut
and iam not good at finding them at the regestry
please bear with me
thanks

satarno · Post by **satarno** » Wed Sep 25, 2002 7:56 pm

oh ok

satarno · Post by **satarno** » Wed Sep 25, 2002 8:04 pm

it did not help much for my download still low now is 12kb/s

mnosteele52 · Post by **mnosteele52** » Wed Sep 25, 2002 8:06 pm

What did you set your NIC duplex mode to? If you tried 10mb half, now try 10mb full and see, also try resetting your modem - power it down for atleast 15 seconds and then repower it.

P.S. Did you reboot for the settings to take effect?

satarno · Post by **satarno** » Wed Sep 25, 2002 8:15 pm

oh
i forget to reset my NIC duplex mode
now i have reset it and my download is up with 900kbps
wow thank you very much
sir
you are the best

satarno · Post by **satarno** » Wed Sep 25, 2002 8:23 pm

thank you very much sir
i can live with 900 but is there any other tweak you can do to get a dramatic improve to my speed
or a software that i can purshase if its worth the money

mnosteele52 · Post by **mnosteele52** » Wed Sep 25, 2002 8:30 pm

Nope, Cablenut is the most thorough tweaking app I know of. Did you try all the GlobalMaxTcpWindow & TcpWindowSizes and did you try setting your duplex mode to 10mb half duplex & 10mb full duplex modes. Also you might try the DSL Wiring Article.... also make sure in Internet Explorer under tools - internet options - connections - LAN settings that NOTHING there is checked. Something else to do is uninstall all the protocols not needed under control panel network connections - local area connection - where you have TCP/IP internet protocol and possibly others (QoS packet scheduler & client for MS networks).... uninstall everything but TCP/IP internet protocol.

satarno · Post by **satarno** » Wed Sep 25, 2002 8:49 pm

i wanted to do the tweaks that LOBO has talked about at
https://www.speedguide.net/forums/ ... adid=90055
and he asked to not add any thing on it
but i could not understand any thing aobut it

mnosteele52 · Post by **mnosteele52** » Wed Sep 25, 2002 8:54 pm

It's up to you if you follow his advice.... it changes day to day.

satarno · Post by **satarno** » Wed Sep 25, 2002 8:56 pm

do i have to remove the Qos packet too >> won't i need it in other
tweaks

mnosteele52 · Post by **mnosteele52** » Wed Sep 25, 2002 8:58 pm

Originally posted by satarno
do i have to remove the Qos packet too >> won't i need it in other
tweaks

Yes, remove everything but the TCP/IP Internet Protocol.

satarno · Post by **satarno** » Wed Sep 25, 2002 9:37 pm

i just care about my downloading i want to have a better downloading if i can .. thank you verry much
i really find you in a critical time and you show me some good help ..thank you from the botom of me heart
sir

mnosteele52 · Post by **mnosteele52** » Wed Sep 25, 2002 9:40 pm

Anytime, glad to help..... just don't call me sir..... it makes me feel old.

satarno · Post by **satarno** » Thu Sep 26, 2002 2:06 pm

i wanna perform the ramdisk tweak but i did not know how to change the registery for that /z: stuff