Salve, prima con il modem USB avevo l'MTU a 1500, ora cn il router, anche avendolo impostato a tale valore tramite dr tcp, facendo il test ecco i risultati:
TCP options string = 020405a6010303030101080a000000000000000001010402
MTU = 1486
MTU is somewhat optimized for broadband. If you're not on a PPPoE DSL connection that limits packet size, consider increasing your MTU to 1500 for optimal throughput.
MSS = 1446
Maximum useful data in each packet = 1446, which equals MSS.
Default Receive Window (RWIN) = 511880
RWIN Scaling (RFC1323) = 3 bits (scale factor of 6)
Unscaled Receive Window = 63985
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
508992 (MSS x 44 * scale factor of 8)
254496 (MSS x 44 * scale factor of 4)
127248 (MSS x 44 * scale factor of 2)
63624 (MSS x 44)
bandwidth * delay product (Note this is not a speed test):
Your RcvWindow limits you to: 20475.2 kbps (2559.4 KBytes/s) @ 200ms
Your RcvWindow limits you to: 8190.08 kbps (1023.76 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 55 hops
TTL value is ok.
Timestamps (RFC1323) =
Timestamps (RFC1323) = ON
Note: Timestamps add 12 bytes to the TCP header of each packet, reducing the space available for useful data.
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)
il router è un
3COM OfficeConnect Wireless 11g/Firewall Router
Aiutatemi!
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