Re: SUMMARY: RWIN on Solaris?

From: WC Jones <sx_at_insecurity.org>
Date: Mon Feb 16 2004 - 11:08:54 EST
>>> Solaris 9 Ultrasparc -  hme0 - Which one of these is the RWIN?
>>
>>tcp_recv_hiwat
>>
>>See http://docs.sun.com/db/doc/816-0607/6m735r5g6?q=tcp+receive+window&a=view
>>for details.

Please excuse my follow-up to my own post:
See:

http://monitor.dslreports.com/tweak/block:5747422?service=dsl&speed=1500&os=Sola
ris&via=routerpppoe


I set the RWIN to 1048576 and got these much more encouraging results:

Your Tweakable Settings:
Receive Window (RWIN): 	1050272
Window Scaling: 	5
Path MTU Discovery: 	ON
RFC1323 Window Scaling: ON
RFC1323 Time Stamping: 	ON
Selective Acks: 	ON
MSS requested: 	1418
TTL:
(less any hops behind firewall) 67
TTL remaining: 	52

Notes and recommendations:

	Example 146000 byte download
	Actual data bytes sent: 146000
Actual data packets: 104
Max packet sent (MTU): 1446
Max packet recd (MTU): 1446
Retransmitted data packets: 0
sacks you sent: 0
pushed data pkts: 1
data transmit time: 0.811 secs
our max idletime: 112.1 ms
transfer rate: 91918 bytes/sec
transfer rate: 735 kbits/sec

transfer efficiency: 100%
	
Notes and recommendations:
 Upload packet less than your MTU (FAQ #1492)
 Good data stream (no/few rexmits)
	ICMP (ping) check
	Minimum ping: 51 ms
Maximum ping: 53 ms
Ping stability:
52 52 53 51 51 52 53 51 53 52


I promise not to bug the list until next month.
 Great Thanks to all who responded :)
 
 
 Bill
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Received on Mon Feb 16 11:08:51 2004

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