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Tweak Test Results
Posted: Tue Mar 06, 2001 11:42 pm
by cablenut
Lobo wanted to see my tweak test here it is:
TCP options string = 0204059c01010402
MTU = 1476
MTU is not at an optimal value... Consider increasing your MTU to 1500 for optimal throughput.
MSS = 1436
Maximum useful data in each packet = 1436, which seems to be equal to MSS.
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.
Default Receive Window (RWIN) = 63184
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 63184
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
252736 (MSS x 44 * scale factor of 4)
189552 (MSS x 44 * scale factor of 3)
126368 (MSS x 44 * scale factor of 2)
63184 (MSS x 44)
bandwidth * delay product:
Your RcvWindow limits you to: 5054.72 kbps (631.84 KBytes/s) @ 100ms
Your RcvWindow limits you to: 2527.36 kbps (315.92 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1010.944 kbps (126.368 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = true
Time to live = 245 hops
Timestamps (RFC1323) = false
Selective Acknowledgements (RFC2018) = true
IP type of service = x
[ 03-06-2001: Message edited by: cablenut ]
Posted: Tue Mar 06, 2001 11:52 pm
by cablenut
Post your tweak results in this thread for good ol' Cablenut to look at
Posted: Wed Mar 07, 2001 12:07 am
by Qwijib0
TCP options string = 020405b4010303030101080a000000000000000001010402
MTU = 1500
MTU is at optimal value
MSS = 1460
Maximum useful data in each packet = 1448, which is less than MSS because of Timestamps, or other TCP options used
Default Receive Window (RWIN) = 373760
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 46720
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
256960 (MSS x 44 * scale factor of 4)
192720 (MSS x 44 * scale factor of 3)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)
bandwidth * delay product:
Your RcvWindow limits you to: 29900.8 kbps (3737.6 KBytes/s) @ 100ms
Your RcvWindow limits you to: 14950.4 kbps (1868.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 5980.16 kbps (747.52 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = true
Time to live = 19 hops
Timestamps (RFC1323) = true
Selective Acknowledgements (RFC2018) = true
IP type of service = 0
Posted: Wed Mar 07, 2001 1:51 am
by dannjr
TCP options string = 0204059c0103030301010402
MTU = 1476
MTU is not at an optimal value... Consider increasing your MTU to 1500 for optimal throughput.
MSS = 1436
Maximum useful data in each packet = 1436, which seems to be equal to MSS.
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.
Default Receive Window (RWIN) = 371712
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 46464
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
252736 (MSS x 44 * scale factor of 4)
189552 (MSS x 44 * scale factor of 3)
126368 (MSS x 44 * scale factor of 2)
63184 (MSS x 44)
bandwidth * delay product:
Your RcvWindow limits you to: 29736.96 kbps (3717.12 KBytes/s) @ 100ms
Your RcvWindow limits you to: 14868.48 kbps (1858.56 KBytes/s) @ 200ms
Your RcvWindow limits you to: 5947.392 kbps (743.424 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = true
Time to live = 247 hops
Timestamps (RFC1323) = false
Selective Acknowledgements (RFC2018) = true
IP type of service = MAJOR SECRET
Posted: Wed Mar 07, 2001 2:24 am
by dannjr
TCP options string = 0204059c010303030101080a000000000000000001010402
MTU = 1476
MTU is not at an optimal value... Consider increasing your MTU to 1500 for optimal throughput.
MSS = 1436
Maximum useful data in each packet = 1424, which is less than MSS because of Timestamps, or other TCP options used
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.
Default Receive Window (RWIN) = 510712
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 63839
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
252736 (MSS x 44 * scale factor of 4)
189552 (MSS x 44 * scale factor of 3)
126368 (MSS x 44 * scale factor of 2)
63184 (MSS x 44)
bandwidth * delay product:
Your RcvWindow limits you to: 40856.96 kbps (5107.12 KBytes/s) @ 100ms
Your RcvWindow limits you to: 20428.48 kbps (2553.56 KBytes/s) @ 200ms
Your RcvWindow limits you to: 8171.392 kbps (1021.424 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = true
Time to live = 247 hops
Timestamps (RFC1323) = true
Selective Acknowledgements (RFC2018) = true
IP type of service field = shhh Its a secret
Posted: Wed Mar 07, 2001 3:29 am
by Philip
Hmm... Is QoS of 111 the best ?
Posted: Wed Mar 07, 2001 4:49 am
by Prey521
Originally posted by Philip:
Hmm... Is QoS of 111 the best ?
<Prey Scratching Head> This must be one of those tech terms which I know nothing of
Posted: Wed Mar 07, 2001 4:59 am
by dannjr
Posted: Wed Mar 07, 2001 8:02 am
by blebs
SpeedGuide.net TCP/IP Analyzer
TCP properties for IP = 24.xxx.xxx.xxx
TCP options string = 020405b4010303020101080a000000000000000001010402
MTU = 1500
MTU is at optimal value
MSS = 1460
Maximum useful data in each packet = 1448, which is less than MSS because of Timestamps, or other TCP options used
Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits
Unscaled Receive Window = 64240
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
256960 (MSS x 44 * scale factor of 4)
192720 (MSS x 44 * scale factor of 3)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)
bandwidth * delay product:
Your RcvWindow limits you to: 20556.8 kbps (2569.6 KBytes/s) @ 100ms
Your RcvWindow limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = true
Time to live = 50 hops
Timestamps (RFC1323) = true
Selective Acknowledgements (RFC2018) = true
IP type of service field = 00000000
Posted: Wed Mar 07, 2001 9:18 am
by Lobo
OK here's mine, pretty neat huh:
SpeedGuide.net TCP/IP Analyzer
TCP properties for IP = x
TCP options string = 02040551010303000101080a000000000000000001010402
MTU = 1401
MTU is not at an optimal value... Consider increasing your MTU to 1500 for optimal throughput.
MSS = 1361
Maximum useful data in each packet = 1349, which is less than MSS because of Timestamps, or other TCP options used
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.
Default Receive Window (RWIN) = 14867
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 14867
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
261312 (MSS x 48 * scale factor of 4)
195984 (MSS x 48 * scale factor of 3)
130656 (MSS x 48 * scale factor of 2)
65328 (MSS x 48)
bandwidth * delay product:
Your RcvWindow limits you to: 1189.36 kbps (148.67 KBytes/s) @ 100ms
Your RcvWindow limits you to: 594.68 kbps (74.335 KBytes/s) @ 200ms
Your RcvWindow limits you to: 237.872 kbps (29.734 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = true
Time to live = 53 hops
Timestamps (RFC1323) = true
Selective Acknowledgements (RFC2018) = true
IP type of service field = 00000000
Posted: Wed Mar 07, 2001 9:21 am
by Lobo
Works goog Phillip, right on the money, keep up good work, you & friend
Posted: Wed Mar 07, 2001 9:40 am
by Buggyman
TCP options string = 020405b401010402
MTU = 1500
MTU is at optimal value
MSS = 1460
Maximum useful data in each packet = 1460, which seems to be equal to MSS.
Default Receive Window (RWIN) = 64240
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 64240
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
256960 (MSS x 44 * scale factor of 4)
192720 (MSS x 44 * scale factor of 3)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)
bandwidth * delay product:
Your RcvWindow limits you to: 5139.2 kbps (642.4 KBytes/s) @ 100ms
Your RcvWindow limits you to: 2569.6 kbps (321.2 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1027.84 kbps (128.48 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = true
Time to live = 241 hops
Timestamps (RFC1323) = false
Selective Acknowledgements (RFC2018) = true
IP type of service field = (Classified Info)
Precedence (QoS) = 000
Delay = 1
Throughput = 1
Reliability = 1
Cost = 0
[ 03-07-2001: Message edited by: Buggyman ]