SG Broadband Community

First off I have cablenut 4.0 and the 4.0-4.xx patch installed also the speedguide web patch. I'm always trying to better my connection.

Your download speed : 1082417 bps, or 1082 kbps.
Browsers would show : about a 132.1 k/sec transfer rate.
Your upload speed : 124416 bps, or 124 kbps.
Your connection rocks .. above the 1mbit barrier!

CPU 600 MHZ Intel Celeron (Overclocked), O/S-Windows ME, 128 MB RAM, RCA Broadband 2-way Cable, 20.5 Gig HD, Kingston Fast Ethernet 10/100TX. Adelphia Powerlink. rbtweak@adelphia.net

TCP options string = 020405b40103030301010402

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1460, which is equal to MSS.

Default Receive Window (RWIN) = 385440
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 48180
RWIN is a multiple of MSS
Other values for RWIN 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:
Your RcvWindow limits you to: 15417.6 kbps (1927.2 KBytes/s) @ 200ms
Your RcvWindow limits you to: 6167.04 kbps (770.88 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 50 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

rbtweak@adelphia.net

Try RWIN of 481800 and make sure Globalmaxwindosize is left blank, save to registry, reboot

Please take this test when you return so I can peek under the hood:
Please click up above on our tweak test/ TCP/IP
Analayzer. so I may see test results do this :
At top where it says edit click and select, Select all,
Then go back to same edit button at top, click and select copy.
Come back to Speedguide, same thread you were on, in post reply box, with cursor blinking at begining of box go to top, edit, click, select paste, click, this will put information in box. Please X out your IP address, Thank you.

Receive Window (RWIN): 481800
Window Scaling: 3
Path MTU Discovery: ON
RFC1323 Window Scaling: ON
RFC1323 Time Stamping: OFF
Selective Acks: ON
MSS requested: 1460
TTL: 65
(less any hops behind firewall)
TTL remaining: 51


Example 146000 byte download
Actual data bytes sent: 157680
Actual data packets: 108
Max size packet sent: 1500
Max size packet recd: 1500
Retransmitted data packets: 8
sacks you sent: 22
pushed data pkts: 2
data transmit time: 1.705 secs
our max idletime: 458.6 ms
transfer rate: 72766 bytes/sec
transfer rate: 582 kbits/sec
This is not a speed test!
transfer efficiency: 92%


ICMP (ping) check
Minimum ping: 27 ms
Maximum ping: 41 ms
Ping stability:
27 30 28 29 41 29 36 30 31 30



less detail..
total packets: 70 total packets: 112
ack pkts sent: 69 ack pkts sent: 112
pure acks sent: 65 pure acks sent: 3
unique bytes sent: 4380 unique bytes sent: 146000
actual data pkts: 3 actual data pkts: 108
actual data bytes: 4380 actual data bytes: 157680
rexmt data pkts: 0 rexmt data pkts: 8
rexmt data bytes: 0 rexmt data bytes: 11681
outoforder pkts: 0 outoforder pkts: 0
pushed data pkts: 3 pushed data pkts: 2
SYN/FIN pkts sent: 1/1 SYN/FIN pkts sent: 1/2
req 1323 ws/ts: Y/N req 1323 ws/ts: Y/N
adv wind scale: 3 adv wind scale: 0
req sack: Y req sack: Y
sacks sent: 22 sacks sent: 0
mss requested: 1460 bytes mss requested: 1460 bytes
max segm size: 1460 bytes max segm size: 1460 bytes
min segm size: 1460 bytes min segm size: 1460 bytes
avg segm size: 1459 bytes avg segm size: 1459 bytes
max win adv: 481800 bytes max win adv: 14600 bytes
min win adv: 23048 bytes min win adv: 5840 bytes
zero win adv: 0 times zero win adv: 0 times
avg win adv: 482091 bytes avg win adv: 14443 bytes
initial window: 1460 bytes initial window: 2920 bytes
initial window: 1 pkts initial window: 2 pkts
ttl stream length: 4380 bytes ttl stream length: 146000 bytes
missed data: 0 bytes missed data: 0 bytes
truncated data: 4242 bytes truncated data: 152712 bytes
truncated packets: 3 pkts truncated packets: 108 pkts
data xmit time: 0.039 secs data xmit time: 1.705 secs
idletime max: 459.7 ms idletime max: 458.6 ms
throughput: 2183 Bps throughput: 72766 Bps
RTT samples: 4 RTT samples: 38
RTT min: 0.1 ms RTT min: 30.8 ms
RTT max: 0.1 ms RTT max: 232.2 ms
RTT avg: 0.1 ms RTT avg: 49.3 ms
RTT stdev: 0.0 ms RTT stdev: 31.3 ms
post-loss acks: 0 post-loss acks: 4
For the following 5 RTT statistics, only ACKs for
multiply-transmitted segments (ambiguous ACKs) were
considered. Times are taken from the last instance
of a segment.
ambiguous acks: 0 ambiguous acks: 2
RTT min (last): 0.0 ms RTT min (last): 32.8 ms
RTT max (last): 0.0 ms RTT max (last): 33.0 ms
RTT avg (last): 0.0 ms RTT avg (last): 32.9 ms
RTT sdv (last): 0.0 ms RTT sdv (last): 0.0 ms
segs cum acked: 0 segs cum acked: 57
duplicate acks: 108 duplicate acks: 25
triple dupacks: 0 triple dupacks: 2
max # retrans: 0 max # retrans: 1
min retr time: 0.0 ms min retr time: 55.8 ms
max retr time: 0.0 ms max retr time: 492.7 ms
avg retr time: 0.0 ms avg retr time: 189.2 ms
sdv retr time: 0.0 ms sdv retr time: 181.2 ms
Detail provided by .. tcptrace

Is it better, worse, you might try RWIN 513920 and see if thats better

TCP options string = 020405b40103030301010402

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1460, which is equal to MSS.

Default Receive Window (RWIN) = 481800
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 60225
RWIN is a multiple of MSS
Other values for RWIN 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:
Your RcvWindow limits you to: 19272 kbps (2409 KBytes/s) @ 200ms
Your RcvWindow limits you to: 7708.8 kbps (963.6 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 50 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

rbtweak@adelphia.net