SG TCP/IP Analyzer Results, HELP?!?!

[PatrickW]

TCP options string = 020405b401010402

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) = 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:
513920 (MSS x 44 * scale factor of 8)
256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)

bandwidth * delay product:
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) = ON

Time to live left = 116 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

Any idea of what I can do, right now I am reading that everyone on attbi is getting like at least 1500/128, I get 1400/120.

[HalfLifer]

Uhhh

1400/120 is perfect. Most get under 1000/100. No need to complain.

[HenryHand1]

Your settings are fine, unless you are using DSL and it is PPPoE implemented (you launch a program to connect to the internet).

If you do use DSL with PPPoE, change your MTU to 1492. Otherwise, 1400/120 is within range of the 1500/128 speeds, and I wouldn't worry about it too much.

[PatrickW]

ill leave it alone

[HalfLifer]

Originally posted by HenryHand1
Your settings are fine, unless you are using DSL and it is PPPoE implemented (you launch a program to connect to the internet).

If you do use DSL with PPPoE, change your MTU to 1492. Otherwise, 1400/120 is within range of the 1500/128 speeds, and I wouldn't worry about it too much.

Read his post, hes got cable.

[PatrickW]

if i use dslreports.com tweak test, I have problems in retransmission of packets, not sure what that means... if anyone wants i can post the link...actually i will

http://monitor.dslreports.com/tweak/blo ... via=normal

[PatrickW]

is the mss/mtu the only thing that really matters when trying to tweak for more speed? right now I am pretty sure I have a good setup, although I would like 50k more on download and about 10k on upload... here are my results, take a look and please tell me if you have any suggestions

TCP options string = 020405b401010402

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) = 37960
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 37960
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: 1518.4 kbps (189.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 607.36 kbps (75.92 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 116 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

[HenryHand1]

Originally posted by HalfLifer



Read his post, hes got cable.

He didn't say 'cable' anywhere in his post. Just attbi, which I haden't heard of.

[HenryHand1]

Originally posted by PatrickW
is the mss/mtu the only thing that really matters when trying to tweak for more speed? right now I am pretty sure I have a good setup, although I would like 50k more on download and about 10k on upload... here are my results, take a look and please tell me if you have any suggestions

TCP options string = 020405b401010402

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) = 37960
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 37960
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: 1518.4 kbps (189.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 607.36 kbps (75.92 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 116 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

No, time stamps and RWIN especially matter too but your settings are very good. I looked at your tweak test results and 82% transfer efficency is pretty bad. Running a DSLR line quality test could discover what may be wrong. Otherwise, you might want to lower your RWIN to the next lowest multiple of MSS (36500 in your case).

[PatrickW]

attbi is att broadband internet