ho eseguito il test velocitaà con i seguenti risultati:

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TCP options string = 0204058601010402

MTU = 1454
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.

MSS = 1414
Maximum useful data in each packet = 1414, which equals 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) = 8484
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 8484
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
520352 (MSS x 46 * scale factor of 8)
260176 (MSS x 46 * scale factor of 4)
130088 (MSS x 46 * scale factor of 2)
65044 (MSS x 46)

bandwidth * delay product:
Your RcvWindow limits you to: 339.36 kbps (42.42 KBytes/s) @ 200ms
Your RcvWindow limits you to: 135.744 kbps (16.968 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.

MTU Discovery (RFC1191) = ON

Time to live left = 121 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

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cosa vuol dire ? è configurata bene?
misi consigllia di aumentare l' MTU come posso farlo?
La mia connessione è una 256 kbps tin.it, ho un modem ethernet ipm datacom

Grazie!