Subject: Degeneration to defintite response...

From: [email-masked] (Paul Brittain)
Date: Sun, 22 May 94 19:20:02 BST

Shannon, Bill et al.

>    Since on circuits with sporadic traffic this degenerates to "definite
>    response mode", do we want to specify some receiver options to smooth
>    this effect or do we wish to leave it to the discretion of the
>    implementor?  What does everyone think?

In the interests of consistent performance for standard implementations (at
least, it should be consistently good!), I think we should specify that the
receiver delay the PRSP until, say, half way through the window if the sender
used less than half the window on the current cycle.  If more than half the
window is being used, the PRSP should be sent as soon as the receiver has
determined that it has sufficient resources to handle the next window (which
still leaves a fair degree of implementation-specific flexibility)

If a receiver wishes to change the window size either way, it may send the
IPM/PRSP whenever it wishes (i.e. no need to wait for the half-window point).

Paul Brittain
Data Connection