Re: Arpanet outage


SNELSON@STL-HOST1.ARPA
22 Dec 1986 07:28-CST


MIKE:
DCTN IS THE DEFENSE COMMERCIAL TELECOMMUNICATIONS NETWORK. IT'S FOR RUNNER
WAS THE COMMERCIAL SATELLITE COMMUNICATIONS NETWORK. IT WAS BASED UPON
AN INITIAL 11 NUMBER 5ESS TO CONSTRUCTED AT VARIOUS MILITARY INSTALLATIONS
IN THE US. LETTERKENNY ARMY DEPOT, REDSTONE ARSENAL, SCOTT AFB, ETC., WERE
SOME OF THE SITES. AUTOVON, FTS, DDN LINKS AND SO ON WERE/ARE TO USE IT
AS THEIR BACKBONE. DDN LINKS ARE TO USE LANDLINE BECAUSE OF THE PROPAGATION
DELAY PROBLEM. YOU SHOULD HAVE NOTICED A MARKED IMPROVEMENT ON SOME OF
YOUR AUTOVON CALLS STARTING SOMETIME IN APRIL WHERE THEY WERE ROUTED VIA
SATELLITE. THERE IS SOME KIND OF DELAY COMPENSATOR AND I CAN'T TELL IF
I AM ON A BIRD OR NOT. HAVEN'T TRIED A TERMINAL TO A TAC TO SEE IF IT
MAKES ANY DIFFERENCE OR NOT. IF I DO I WILL LET YOU KNOW.

STEVE



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