confused kid , pls help
Posted: Sun Mar 25, 2001 6:23 pm
hello guys its me again ... im new to this tweaking stuff on dsl i just want to boost up my download speed to around 50k or so ... anyways i installed the speedpatch and tried the tcp tester ... it gave me :
TCP options string = 020405780103030201010402
MTU = 1440
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
MSS = 1400
Maximum useful data in each packet = 1400, which is 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) = 255552
RWIN Scaling (RFC1323) = 2 bits
Unscaled Receive Window = 63888
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
515200 (MSS x 46 * scale factor of 8)
257600 (MSS x 46 * scale factor of 4)
128800 (MSS x 46 * scale factor of 2)
64400 (MSS x 46)
bandwidth * delay product:
Your RcvWindow limits you to: 10222.08 kbps (1277.76 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4088.832 kbps (511.104 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 49 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349)= 00000000
----------------
then i tried lowering the mtu (1472 and 1486) but still the tcp tester reads it as :
MTU = 1440
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
i also read the enternet fix from dannjr but im still confused ... so before i do stuffs on my pc ... i figured out to consult u guys first ... so if anyone can help me out pls do so ...
im on pacbell dsl
using netgear router

TCP options string = 020405780103030201010402
MTU = 1440
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
MSS = 1400
Maximum useful data in each packet = 1400, which is 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) = 255552
RWIN Scaling (RFC1323) = 2 bits
Unscaled Receive Window = 63888
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
515200 (MSS x 46 * scale factor of 8)
257600 (MSS x 46 * scale factor of 4)
128800 (MSS x 46 * scale factor of 2)
64400 (MSS x 46)
bandwidth * delay product:
Your RcvWindow limits you to: 10222.08 kbps (1277.76 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4088.832 kbps (511.104 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 49 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349)= 00000000
----------------
then i tried lowering the mtu (1472 and 1486) but still the tcp tester reads it as :
MTU = 1440
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.
i also read the enternet fix from dannjr but im still confused ... so before i do stuffs on my pc ... i figured out to consult u guys first ... so if anyone can help me out pls do so ...
im on pacbell dsl
using netgear router