ARTICOLO: come settare l'adsl al meglio

[bastardinside88]

Se ti accontenti del download un po' scarso direi di si.

[andreax85]

beh...un po' scarso? A quanto dovrebbe andare? Posso fare altro per aumentarlo?

[bastardinside88]

La velocità massima raggiungibile è 4096 Kbps ossia più di 500 KB/s. A me per esempio scarica sempre intorno ai 510 KB/s.
Non credo che tu possa far molto...probabilmente la linea potrebbe essere meglio.
Ti ho detto...se ti accontenti della tua velocità sei a posto.

[andreax85]

Eh...ok...mi accontenterò...sempre meglio dei 260 di prima

Ora proverò ad andare a modificare tutte le adsl degli amici...

[Robiccio]

raga mi dite se sono ok o qualche consiglio? Alice 4mb thx

TCP options string = 020405b401010402

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.

Default TCP Receive Window (RWIN) = 17520
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 17520

RWIN is a multiple of MSS
Other RWIN values 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 (Note this is not a speed test):

Your TCP Window limits you to: 700.8 kbps (87.6 KBytes/s) @ 200ms
Your TCP Window limits you to: 280.32 kbps (35.04 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.

MTU Discovery (RFC1191) = ON

Time to live left = 119 hops
TTL value is ok.

Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)

[albe182]

adsl alice 4 mega, portante 4.8
router atlantis a02-ra141

SNR Margin: Down 16.0 db UP 21.0 db
Line Attenuation: 34.5 db 18.0 db
Data Rate: Down 4832 kbps UP 320 kbps

TCP options string = 020405b401010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default TCP Receive Window (RWIN) = 65535
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 65535

Note: TCP 1323 Options need to be enabled for RWIN over 2^16 (65535). Windows 9x might also need the MS Vtcp386 fix.
For optimum performance, consider changing RWIN to a multiple of MSS.
Other RWIN values 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 (Note this is not a speed test):

Your TCP Window limits you to: 2621.4 kbps (327.675 KBytes/s) @ 200ms
Your TCP Window limits you to: 1048.56 kbps (131.07 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 120 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)

Che fare?

[GASD080]

Salve a tutti

In nessuno modo sono riuscito a modificare il valore di MTU (regedit,Dr.TCP...).

Dov'è il problema? ho un modem trust 235A speedlink USB e i valori determinati da SpeedGuide sono:

TCP options string = 0204058c0103030301010402

MTU = 1460
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput. If you are using a router, it could be limiting your MTU regardless of Registry settings.

MSS = 1420
Maximum useful data in each packet = 1420, which equals MSS.

Default TCP Receive Window (RWIN) = 514040
RWIN Scaling (RFC1323) = 3 bits (scale factor of 6)
Unscaled TCP Receive Window = 64255

RWIN is a multiple of MSS
Other RWIN values that might work well with your current MTU/MSS:
522560 (MSS x 46 * scale factor of 8)
261280 (MSS x 46 * scale factor of 4)
130640 (MSS x 46 * scale factor of 2)
65320 (MSS x 46)

bandwidth * delay product (Note this is not a speed test):

Your TCP Window limits you to: 20561.6 kbps (2570.2 KBytes/s) @ 200ms
Your TCP Window limits you to: 8224.64 kbps (1028.08 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 57 hops
TTL value is ok.

Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349) = 00000000 (0)

come posso fare?

Denghiu.

[imydal]

penso che non riesci a cambiarlo forse perchè utilizzi la connessione adsl fatta da windows hai provato ad installare rasppoe e poi cambiarlo cn tcp optimizer

[RaMaR]

Ma questi valori sono validi anche per l'adsl2/adsl2+?

[GASD080]

I valori esatti sono questi, appena elaborati. Non so da dove abbia preso quegli altri boh. Uso la connessione che m'ha creato l'installazione del modem.
Cmq sia RASPPPoE nn riesco ad utilizzarlo, appena lo lancio mi da un errore di "dispositivo ethernet nn trovato".


TCP options string = 0204058c01010402

MTU = 1460
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput. If you are using a router, it could be limiting your MTU regardless of Registry settings.

MSS = 1420
Maximum useful data in each packet = 1420, which equals MSS.

Default TCP Receive Window (RWIN) = 17040
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 17040

RWIN is a multiple of MSS
Other RWIN values that might work well with your current MTU/MSS:
522560 (MSS x 46 * scale factor of 8)
261280 (MSS x 46 * scale factor of 4)
130640 (MSS x 46 * scale factor of 2)
65320 (MSS x 46)

bandwidth * delay product (Note this is not a speed test):

Your TCP Window limits you to: 681.6 kbps (85.2 KBytes/s) @ 200ms
Your TCP Window limits you to: 272.64 kbps (34.08 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 (0)


Sempre sto MTU fisso a 1460