Tweak me please guys :D

MikeyBA · Post by **MikeyBA** » Sat Sep 13, 2008 2:44 pm

Im Nildram ADSL 2meg

« SpeedGuide.net TCP Analyzer Results »
Tested on: 09.13.2008 14:43
IP address: 85.211.x.xxx

TCP options string: 0204058a0103030201010402
MSS: 1418
MTU: 1458
TCP Window: 256960 (NOT multiple of MSS)
RWIN Scaling: 2
Unscaled RWIN : 64240
Recommended RWINs: 65228, 130456, 260912, 521824
BDP limit (200ms): 10278kbps (1285KBytes/s)
BDP limit (500ms): 4111kbps (514KBytes/s)
MTU Discovery: ON
TTL: 45
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

thanks alot.

mccoffee · Post by **mccoffee** » Sun Sep 14, 2008 1:07 am

Your mtu is off that is what is probably slowing up try thease in the optimizer save changes reboot ,and take another analyzer ,and hopefully your mtu will be correct.

Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU 1500
TTL - 64
TCP Receive Window - blank
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - unchecked
Timestamps - uncheck
Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - 1
Host Priority - 1
DNSPriority - 1
NetbtPriority - 1
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768
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MikeyBA · Post by **MikeyBA** » Sun Sep 14, 2008 4:38 am

hey thanks alot for that, my results are as followed:

TCP options string = 0204058a0103030e01010402

MTU = 1458
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput. If you are using a router, it could be limiting your MTU regardless of Registry settings.

MSS = 1418
Maximum useful data in each packet = 1418, which equals MSS.

Default TCP Receive Window (RWIN) = 1073725440
RWIN Scaling (RFC1323) = 14 bits (scale factor of 28)
Unscaled TCP Receive Window = 65535

RWIN seems to be an excessively large number. If you're on a line lower than 20 Mbps (that is not satellite), consider using a smaller value.
For optimum performance, consider changing RWIN to a multiple of MSS.
Other RWIN values that might work well with your current MTU/MSS:
521824 (MSS x 46 * scale factor of 8)
260912 (MSS x 46 * scale factor of 4)
130456 (MSS x 46 * scale factor of 2)
65228 (MSS x 46)

bandwidth * delay product (Note this is not a speed test):

Your TCP Window limits you to: 42949018 kbps (5368627 KBytes/s) @ 200ms
Your TCP Window limits you to: 17179607 kbps (2147451 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 46 hops
TTL value is ok.

Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349) = 00000000 (0)

Im guessing my MTU wont stay at 1500 becouse of my router so ill try and correct that.

mccoffee · Post by **mccoffee** » Sun Sep 14, 2008 11:31 pm

What adsl modem brand and model do you own?

MikeyBA · Post by **MikeyBA** » Tue Sep 16, 2008 4:20 pm

its a net gear wireless one, but im not using the wireless its hardwired

mccoffee · Post by **mccoffee** » Mon Sep 22, 2008 2:36 pm

Ok in the modem options there should be an mtu setting under the wan tab i believe cinsault the manual if you have it if not what model ,or series is the modem?