I have a pair of T5240 machines with one 
general purpose ( not private ) network between them.
 
I am running sctp traffic over this network between the two machines.
 
In one time period, I have a burst of 24  messages
roughly 3900 bytes in size  going from one machine to the other.
The messages contain a sequence number.
 
The messages do not all arrive at the destination properly.
Randomly, a couple of messages will be dropped.
"Dropped" is defined as my application never sees them.
Where did the messages get lost ?
ip?
sctp ?
my application ?
I know this test runs on other older platforms.
I have not sniffed the line yet.
 
 
Given that background, my question is:
 
What does this setting in /etc/system really do ??
set ip:ip_soft_rings_cnt=16

I found this setting here...
http://www.solarisinternals.com/wiki/index.php?title=Networks&printable=
yes#Tunable_for_general_workloads_on_T5140.2FT5240
 
W. Reich

 
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