tweak?

bluzeboy · Post by **bluzeboy** » Fri Dec 08, 2006 9:35 pm

i just got a plan that is supposed to be 1meg down and 384k
these are my results can i improve on this result?1meg down and 384k

Notes: Read the Analyzer FAQ if the above is not your IP address.
TCP options string = 020405b40103030001010402
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) = 1460
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 1460

RWIN seems to be set to a very small number. If you're on a broadband connection, consider using a larger value.
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)
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: 58 kbps (7 KBytes/s) @ 200ms
Your TCP Window limits you to: 23 kbps (3 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.
MTU Discovery (RFC1191) = ON
Time to live left = 51 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)
thanks

trogers · Post by **trogers** » Fri Dec 08, 2006 9:47 pm

Try the following with TCP Opimtizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1500
TTL - 64
TCP Receive Window - 32120
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - uncheck
Timestamps - uncheck
Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - 5
Host Priority - 6
DNSPriority - 7
NetbtPriority - 8
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
Then select "Apply Changes" and reboot to take effect

bluzeboy · Post by **bluzeboy** » Fri Dec 08, 2006 10:07 pm

the results
-------------------------------------
TCP options string = 020405b40103030101010402
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) = 1460
RWIN Scaling (RFC1323) = 1 bits (scale factor of 2)
Unscaled TCP Receive Window = 730

RWIN seems to be set to a very small number. If you're on a broadband connection, consider using a larger value.
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)
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: 58 kbps (7 KBytes/s) @ 200ms
Your TCP Window limits you to: 23 kbps (3 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.
MTU Discovery (RFC1191) = ON
Time to live left = 51 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)

bluzeboy · Post by **bluzeboy** » Fri Dec 08, 2006 10:12 pm

thanks trogers!

trogers · Post by **trogers** » Fri Dec 08, 2006 10:15 pm

Your RWIN is still shown as 1460.

Do this nitro test and post the pop-up results under the 'More Details' button:

http://nitro.ucsc.edu/

bluzeboy · Post by **bluzeboy** » Fri Dec 08, 2006 11:06 pm

how can post results.wont let me copy/paste?

bluzeboy · Post by **bluzeboy** » Fri Dec 08, 2006 11:11 pm

i hosted it on image shack ,hope you can read it

http://img183.imageshack.us/img183/1390 ... nceli6.png

trogers · Post by **trogers** » Fri Dec 08, 2006 11:23 pm

Image is not clear.

I am looking for the values for the following in the said report:

CurRwinRcvd
MaxRwinRcvd
MinRwinRcvd

bluzeboy · Post by **bluzeboy** » Fri Dec 08, 2006 11:38 pm

currwinrcvd-12000
maxrwinrcvd-116000
minrwinrcvd-16304

trogers · Post by **trogers** » Fri Dec 08, 2006 11:43 pm

bluzeboy wrote: currwinrcvd-12000
maxrwinrcvd-116000
minrwinrcvd-16304

I think you read the wrong values to the wrong fields.

I was expecting

CurRwinRcvd - 32120
MaxRwinRcvd - 32120
MinRwinRcvd - 1460

bluzeboy · Post by **bluzeboy** » Sat Dec 09, 2006 11:52 am

are these the ones?
CurRwinRcvd - 116000
MaxRwinRcvd -116000
MinRwinRcvd -730

trogers · Post by **trogers** » Sat Dec 09, 2006 12:02 pm

bluzeboy wrote: are these the ones?
CurRwinRcvd - 116000
MaxRwinRcvd -116000
MinRwinRcvd -730

The value 116000 should be 32120.

Try the following again with TCP Opimtizer and then do the nitro test again:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1500
TTL - 64
TCP Receive Window - 32120
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - uncheck
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - 5
Host Priority - 6
DNSPriority - 7
NetbtPriority - 8
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
Then select "Apply Changes" and reboot to take effect

bluzeboy · Post by **bluzeboy** » Sat Dec 09, 2006 1:28 pm

after apply
CurRwinRcvd - 32120
MaxRwinRcvd –32120
MinRwinRcvd-1460

thanks alot trogers
BTW is that a boxer in your avy
good looking dog

bluzeboy · Post by **bluzeboy** » Sat Dec 09, 2006 2:55 pm

TCP options string = 020405b401010402
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) = 1460
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 1460

RWIN seems to be set to a very small number. If you're on a broadband connection, consider using a larger value.
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)
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: 58 kbps (7 KBytes/s) @ 200ms
Your TCP Window limits you to: 23 kbps (3 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.
MTU Discovery (RFC1191) = ON
Time to live left = 51 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)

trogers · Post by **trogers** » Sun Dec 10, 2006 6:18 am

bluzeboy wrote:TCP options string = 020405b401010402
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) = 1460
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 1460

RWIN seems to be set to a very small number. If you're on a broadband connection, consider using a larger value.
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)
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: 58 kbps (7 KBytes/s) @ 200ms
Your TCP Window limits you to: 23 kbps (3 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.
MTU Discovery (RFC1191) = ON
Time to live left = 51 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)

This is okay. Sometimes TCP Analyzer just catch your min RWIN. As long as the nitro test shows your working RWIN (Current and Max RWIN) is as set in TCP Optimizer as 32120, your connection should be working as intended.

bluzeboy · Post by **bluzeboy** » Sun Dec 10, 2006 1:19 pm

thanks again