The chunk size is a function of the file system, not the RPC
protocol... the problem is that RX starts with a *large* (16 packet *
1.5K/packet) window, and thus fires off 24KB in back-to-back packets
when sending more than 24KB at a time.  This takes roughly 10 seconds
to transmit over a 19.2 line; unfortunately, RX then retransmits the
*same* 16 packets 2 seconds later.  Can you say "congestion collapse"?

DCE RPC does do VJ-style slow start, so it should be in better shape
than "plain RX" over slow lines.

                                        - Bill

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