Jump to content

Change Mode

Best Rwin Setting For Broadband?


Recommended Posts

Mines set at 13140 for a 512kb broadband connection and wondered if its maybe a little high still, or maybe its a little too low??. I changed it from its default (whatever that was.....lol) so just wondered what others have theres set at thats relevant to my connetion?.

 

Cheers :)

 

Keith

Link to comment
Share on other sites

There is no single best RWIN value. Ideally you want the highest RWIN value you can use. However, if there are any lost packets or retransmissions a high RWIN value hurts because you may have to throw away more data. That will vary for every site you visit.

 

Usually a 64000 or so RWIN value is the highest you need for most home broadband connections. When you said "13140" did you miss a digit there? That is too low for a 512K connection.

Link to comment
Share on other sites

There is no single best RWIN value. Ideally you want the highest RWIN value you can use. However, if there are any lost packets or retransmissions a high RWIN value hurts because you may have to throw away more data. That will vary for every site you visit.

 

Usually a 64000 or so RWIN value is the highest you need for most home broadband connections. When you said "13140" did you miss a digit there? That is too low for a 512K connection.

Thats the corerct value in the registry that i added instead of the default (whatever that is/was). Seems ok as things go, tho i havnt a clue as regards how it all works.

 

Edit

 

Your Tweakable Settings:

 

Receive Window (RWIN): 13140

Window Scaling: off

Path MTU Discovery: ON

RFC1323 Window Scaling: OFF

RFC1323 Time Stamping: OFF

Selective Acks: ON

MSS requested: 1460

TTL: unknown

TTL remaining: 115

 

Notes and recommendations:

 

RWIN is in range

 

Looking good

 

 

Example 146000 byte download

 

Actual data bytes sent: 146000

Actual data packets: 100

Max packet sent (MTU): 1500

Max packet recd (MTU): 1500

Retransmitted data packets: 0

sacks you sent: 0

pushed data pkts: 20

data transmit time: 1.363 secs

our max idletime: 161.5 ms

transfer rate: 69584 bytes/sec

transfer rate: 556 kbits/sec

This is not a speed test!

transfer efficiency: 100%

 

Those are the latest tests ive done using that 13140 setting.

 

Keith

Edited by doofus
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...