TCP/IP optimalizacia?

Sekcia: Konfigurácia 31.03.2007 | 16:22
leon   Návštevník
dal som si otestovat pripojenie na speedguide.com a vysledok je:
MTU = 1442
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 = 1402
MSS is not optimized for broadband. Consider increasing your MTU value.
Default TCP Receive Window (RWIN) = 5840
RWIN Scaling (RFC1323) = 3 bits (scale factor of 6)
Unscaled TCP Receive Window = 730

RWIN seems to be set to a very small number. If you're on a broadband connection, consider using a larger value.
For optimum performance, consider changing RWIN to a multiple of MSS.
Other RWIN values that might work well with your current MTU/MSS:
515936 (MSS x 46 * scale factor of 8)
257968 (MSS x 46 * scale factor of 4)
128984 (MSS x 46 * scale factor of 2)
 64492 (MSS x 46)
bandwidth * delay product (Note this is not a speed test):
Your TCP Window limits you to: 234 kbps (29 KBytes/s) @ 200ms
Your TCP Window limits you to: 93 kbps (12 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband. MTU Discovery (RFC1191) = ON Time to live left = 48 hops TTL value is ok. 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)
pripojenie je DSL od nemenovaneho monopolu.
Nejde mi o to ze by bol s internetom problem ,ale zarazaju ma tie vypisy ,ze to nie je optimalizovane pre broadband. S tym MTU to este ako tak chapem ,to je zrejme problem poskytovatela ,ale ostatne neviem.
Vypis z ifconfig:MTU:1500
poskytovatel ma (na svojich strankach uvedene) MTU 1452 (zrejme je niekde v tom teste nezrovnalost ,ked to vypisuje 1442 )
Je ziaduce mat TCP Receive Window (RWIN) nastavene na malu hodnotu?
Ak sa niekomu chce tomu venovat ,budem rad ,dakujem
    • Re: TCP/IP optimalizacia? 31.03.2007 | 17:42
      WlaSaTy   Návštevník
      tieto parametre zavisia nielen od rychlosti linky a pouzitej technologie ale aj od chybovosti prenosu. ak chces, tak si ich v /proc/net/ prestav ale musis vediet co robis :) potom zbadas preco.
      • Re: TCP/IP optimalizacia? 31.03.2007 | 18:37
        leon   Návštevník
        kuknem nato a dam vediet ,ked sa nebudem dlho hlasit ,tak to bude jasne ,dik