is this optimized guys??????

remo · Post by **remo** » Sun Jun 03, 2001 3:06 pm

can i get any more out of this???
did a little tweaking today and wanted to have some of you gurus check it out,im on pppoe dsl,i think my cap is 768/128
my os is win 98se
1ghzamd
512ram

TCP options string = 020405ac0103030301010402

MTU = 1492
MTU seems to be optimized for PPPoE... If you are not on a PPPoE connection, consider increasing your MTU to 1500 for optimal throughput.

MSS = 1452
Maximum useful data in each packet = 1452, which is equal to MSS.
MSS is optimized for PPPoE. If you are not on a PPPoE connection, consider increasing your MTU value.

Default Receive Window (RWIN) = 372296
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 46537
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
511104 (MSS x 44 * scale factor of 8)
255552 (MSS x 44 * scale factor of 4)
127776 (MSS x 44 * scale factor of 2)
63888 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 14891.84 kbps (1861.48 KBytes/s) @ 200ms
Your RcvWindow limits you to: 5956.736 kbps (744.592 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = OFF

Time to live left = 52 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

bp1068 · Post by **bp1068** » Sun Jun 03, 2001 4:14 pm

What type of connection are you on, DSL, cable??
you will want the RWIN a multiple of MSS. If your not running PPPoE connection, the MaxMTU could be set to 1500. to test that,
at the DOS prompt, type:
PING -F -L 1500 [your isp here]
the F and L, I used lower case in DOS, do not know if that makes a diff, but I put caps here so they are clear. Work your way down from 1500, until you get to a number that does not need to be fragmented, that is the largest unit you can sent through you ISP. then add 28, and make that number your MaxMTU. Mine works at 1472, anything more needs to be fragmented, so my MaxMTU is set at 1500. For RWIN settings, look through a bunch of the posts in here and decide for yourself what you want, I think something close to what you have would be fine, just make it a multiple of MSS. Hope that helps, these guys in here have helped me plenty.

Lobo · Post by **Lobo** » Sun Jun 03, 2001 4:44 pm

You said up above you are on PPPoE, MTU is right at 1492, try changing RWIN to 511104

remo · Post by **remo** » Sun Jun 03, 2001 6:02 pm

hi lobo

ok this is new test with new rwin-hows this look now????
seems like we uped it a little ah

TCP options string = 020405ac0103030301010402

MTU = 1492
MTU seems to be optimized for PPPoE... If you are not on a PPPoE connection, consider increasing your MTU to 1500 for optimal throughput.

MSS = 1452
Maximum useful data in each packet = 1452, which is equal to MSS.
MSS is optimized for PPPoE. If you are not on a PPPoE connection, consider increasing your MTU value.

Default Receive Window (RWIN) = 511104
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 63888
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
255552 (MSS x 44 * scale factor of 4)
127776 (MSS x 44 * scale factor of 2)
63888 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 20444.16 kbps (2555.52 KBytes/s) @ 200ms
Your RcvWindow limits you to: 8177.664 kbps (1022.208 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = OFF

Time to live left = 52 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

Originally posted by Lobo
You said up above you are on PPPoE, MTU is right at 1492, try changing RWIN to 511104

Lobo · Post by **Lobo** » Sun Jun 03, 2001 6:05 pm

Turn on MTU Discovery and your ready to rock and roll

If you by chance are using Cablenuts adjuster: GlobalmaxTcpWindoSize needs to be -BLANK

remo · Post by **remo** » Sun Jun 03, 2001 6:10 pm

lobo
my mtu discovery =0 right now how do on turn it on
do i use a 1 instead of 0 to turn on

Originally posted by Lobo
Turn on MTU Discovery and your ready to rock and roll

Lobo · Post by **Lobo** » Sun Jun 03, 2001 6:13 pm

Set it to 1, you have it at 0, for directions go hare

If you have adjuster, save to registry at bottom and reboot

remo · Post by **remo** » Sun Jun 03, 2001 6:27 pm

thanks lobo
i can honestly say my computer run better,faster and more efficient than the day i bought it(85% mem resources)thanks to you guys and this site.
thanks again
you da man lobo

below is updated test

TCP options string = 020405ac0103030301010402

MTU = 1492
MTU seems to be optimized for PPPoE... If you are not on a PPPoE connection, consider increasing your MTU to 1500 for optimal throughput.

MSS = 1452
Maximum useful data in each packet = 1452, which is equal to MSS.
MSS is optimized for PPPoE. If you are not on a PPPoE connection, consider increasing your MTU value.

Default Receive Window (RWIN) = 511104
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 63888
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
255552 (MSS x 44 * scale factor of 4)
127776 (MSS x 44 * scale factor of 2)
63888 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 20444.16 kbps (2555.52 KBytes/s) @ 200ms
Your RcvWindow limits you to: 8177.664 kbps (1022.208 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 52 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

Originally posted by Lobo
Set it to 1, you have it at 0, for directions go hare

If you have adjuster, save to registry at bottom and reboot

remo · Post by **remo** » Sun Jun 03, 2001 6:31 pm

one other thing lobo-do you think if i get rid of my current enternet 300/pppoe and go with a router that supports pppoe i would be in better shape

what would be my advantages/disadvantages ect.
just wanted to get some input or if you have some links where i can do some research

thanks again
remo