Installation guide

Chapter 9 Network Device Driver Options 139
If you set t2 too high, there may be long delays between transmissions
while the sender is waiting for acknowledgment. If you set t2 too
low, you can generate acknowledgments before the receive window
fills up, thus wasting time and lowering performance. In general,
increase t2 when using a heavily loaded network, and decrease it
when using a lightly loaded network.
For an explanation of the relationship among the three timer entries,
see the t1 entry.
ti
Sets the inactivity-timer value in milliseconds. This timer determines
how often the NetBEUI driver checks an inactive link to see whether
it is still operational.
In general, keep the ti value between 10000–30000 milliseconds to
minimize unnecessary activity.
For an explanation of the relationship among the three timer entries,
see the t1 entry.
windowerrors
Specifies the number of dropped packets that the adaptive window
algorithm allows before it decreases the send window (for more
information on the adaptive window algorithm, see the adaptrate
entry in this section). For example, if windowerrors has a value of 1,
one packet can drop between runs of the algorithm without having
any effect; if two packets drop, the algorithm decreases the send
window.
Keep the value of windowerrors low for a lightly loaded network,
and increase it for a heavily loaded network.