CableNut Fios

[vvarrior]

Verizon Fios
20mb download / 5 mb upload

Need help with cablenut settings wut do you suggest?

Analyzer Results
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) = 921600
RWIN Scaling (RFC1323) = 4 bits (scale factor of 8)
Unscaled TCP Receive Window = 57600

For optimum performance, consider changing RWIN to 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: 36864 kbps (4608 KBytes/s) @ 200ms
Your TCP Window limits you to: 14746 kbps (1843 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 53 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00010000 (16)
Precedence (priority) = 000 (routine)
Delay = 1 (low delay)
Throughput = 0 (normal throughput)
Reliability = 0 (normal reliability)
Cost = 0 (normal cost)
Check bit = 0 (correct, 8th checking bit must be zero)

DiffServ (RFC 2474) = No valid DiffServ equivalent. See the TCP Optimizer documentation, or RFCs 2474, 2475, 2597, 2598, 2873.

[trogers]

What OS are you using?

[vvarrior]

windows xp pro

[trogers]

Is that XP Pro SP2?

SP2 has an unusual reaction to CableNut setting for Default Receive Window. The value specified for this field will override TCP Receive Window.

List down your present Cablenut settings so that we can make changes to it.

[vvarrior]

Default Recieve Window: 921600
Default Send Window: 256000
Disable Address Sharing: 1
Initial Large Buffer Count: 200
Initial Medium Buffer Count: 480
Initial Small Buffer Count: 640
Large Buffer Size: 819200
Max Fast Transmit: 64000
Medium Buffer Size: 150400
Priority Boost: 0
Small Buffer Size: 12800
Transmit Worker: 32
Fast Send Datagram Threshold: 4096
Enable Fast Route Lookup: 1
Enable PMTU Discovery: 1
Ignore Push Bit On Recieves: 0
Global Max TCP Window Size: 189800
Max Free Tcbs: 8000
Max Hash Table Size: 16384
Max Norm Lookup Memory: 5000000
SackOpts: 1
SynAttackProtect: 1
Tcp13230Opts: 1
Tcp Log Level: 1
Tcp Max Dup Acks: 3
Tcp Max Half Open: 100
TcP Max Half Open Retired: 80
Tcp Recv Segment Size: 1460
Tcp Send Segment Size: 1460
Tcp Timed Wait Delay: 30
Tcp Use RFC1122 Urgent Pointer: 0
Tcp Window Size: 189800
Max Connections Per 1_0Server: 20
Max Connections Per Server: 10
Default TTL: 64
DisableUserTOSSetting: 0
Tcp Max Data Retransmissions: 6
Default TOS Value: 240

Windows XP Pro SP2
Verizon Fios 20mb/5mb

[trogers]

Default Recieve Window: 321200
Default Send Window: 640000
Disable Address Sharing: 1
Initial Large Buffer Count: 200
Initial Medium Buffer Count: 480
Initial Small Buffer Count: 640
Large Buffer Size: 819200
Max Fast Transmit: 64000
Medium Buffer Size: 150400
Priority Boost: 0
Small Buffer Size: 12800
Transmit Worker: 32
Fast Send Datagram Threshold: 4096
Enable Fast Route Lookup: 1
Enable PMTU Discovery: 1
Ignore Push Bit On Recieves: 0
Global Max TCP Window Size: 321200
Max Free Tcbs: 8000
Max Hash Table Size: 32768
Max Norm Lookup Memory: 5000000
SackOpts: 1
SynAttackProtect: 1
Tcp13230Opts: 1
Tcp Log Level: 1
Tcp Max Dup Acks: 2
Tcp Max Half Open: 100
TcP Max Half Open Retired: 80
Tcp Recv Segment Size: 1460
Tcp Send Segment Size: 1460
Tcp Timed Wait Delay: 30
Tcp Use RFC1122 Urgent Pointer: 0
Tcp Window Size: 321200
Max Connections Per 1_0Server: 20
Max Connections Per Server: 10
Default TTL: 64
DisableUserTOSSetting: 0
Tcp Max Data Retransmissions: 6
Default TOS Value: 80

Windows XP Pro SP2
Verizon Fios 20mb/5mb

Make the changes as indicated in red.

[vvarrior]

Make the changes as indicated in red.

ty =]