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Thread: tweak?

  1. #1
    Junior Member bluzeboy's Avatar
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    tweak?

    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
    XP Home SP2 768 RAM INTEL 4 Wireless Connection

  2. #2
    Elite Member trogers's Avatar
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    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

  3. #3
    Junior Member bluzeboy's Avatar
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    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)
    XP Home SP2 768 RAM INTEL 4 Wireless Connection

  4. #4
    Junior Member bluzeboy's Avatar
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    thanks trogers!
    XP Home SP2 768 RAM INTEL 4 Wireless Connection

  5. #5
    Elite Member trogers's Avatar
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    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/

  6. #6
    Junior Member bluzeboy's Avatar
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    how can post results.wont let me copy/paste?
    XP Home SP2 768 RAM INTEL 4 Wireless Connection

  7. #7
    Junior Member bluzeboy's Avatar
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    i hosted it on image shack ,hope you can read it

    http://img183.imageshack.us/img183/1...edwinceli6.png
    XP Home SP2 768 RAM INTEL 4 Wireless Connection

  8. #8
    Elite Member trogers's Avatar
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    Image is not clear.

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

    CurRwinRcvd
    MaxRwinRcvd
    MinRwinRcvd

  9. #9
    Junior Member bluzeboy's Avatar
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    currwinrcvd-12000
    maxrwinrcvd-116000
    minrwinrcvd-16304
    XP Home SP2 768 RAM INTEL 4 Wireless Connection

  10. #10
    Elite Member trogers's Avatar
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    Quote Originally Posted by bluzeboy View Post
    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

  11. #11
    Junior Member bluzeboy's Avatar
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    are these the ones?
    CurRwinRcvd - 116000
    MaxRwinRcvd -116000
    MinRwinRcvd -730
    XP Home SP2 768 RAM INTEL 4 Wireless Connection

  12. #12
    Elite Member trogers's Avatar
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    Quote Originally Posted by bluzeboy View Post
    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

  13. #13
    Junior Member bluzeboy's Avatar
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    after apply
    CurRwinRcvd - 32120
    MaxRwinRcvd –32120
    MinRwinRcvd-1460

    thanks alot trogers
    BTW is that a boxer in your avy
    good looking dog
    Last edited by bluzeboy; 12-09-06 at 01:05 PM.
    XP Home SP2 768 RAM INTEL 4 Wireless Connection

  14. #14
    Junior Member bluzeboy's Avatar
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    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)
    XP Home SP2 768 RAM INTEL 4 Wireless Connection

  15. #15
    Elite Member trogers's Avatar
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    Quote Originally Posted by bluzeboy View Post
    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.

  16. #16
    Junior Member bluzeboy's Avatar
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    thanks again
    XP Home SP2 768 RAM INTEL 4 Wireless Connection

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