Re: major change to 1822 (IMP) software


CERF@USC-ISI.ARPA
19 Mar 1986 04:28-PST


Mark,

I would be very hesitant to put a lot of traffic on "uncontrolled" datagrams.
The term "uncontrolled" meant just that. No flow/congestion control; except
to discard a type 3 datagram if you had nothing else to do with it. When we
ran packetized voice tests on the ARPANET using the current type 3
datagrams, we interfered pretty severely with network performance.

I don't know how far the new end/end would go towards making this any better.
Andy Malis at BBN would be a good person to ask. My assumption for the moment
is that they have reduced the need for RFNM-like behavior (not to zero,
you still need acks on an end/end basis, but not one per packet) but this does
not put control onto the type 3 packets, as far as I know.

Vint



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