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+Network Working Group                              B. Cosell
+Request for Comments:  #213                        BBN
+NIC #7194                                          20 August 1971
+Categories:  B.1
+Updates:  None
+Obsoletes:  None
+
+
+
+                     IMP System Change Notification
+                     ------------------------------
+
+
+     During the week of 16 August, we installed a new version of
+the IMP system, version 2505.  The new version incorporated three
+principal changes:
+
+     1)  The number of hosts the system can handle was increased
+         from three to four. Although this caused a rather large
+         internal change to the IMP, the only external effects of
+         the change are the presence of a new status light [light
+         8 monitors Host 4], and the lengthening of the 10-second
+         and snapshot statistics.
+
+     2)  The host handling routines were modified to gather more
+         accurate and voluminous statistics on host usage of the
+         network, and report them to NCC.
+
+     3)  The 10-sec. statistics were changed to measure time for
+         the host "round trip" statistic in units of 800 rather
+         than 100 microseconds.
+
+          It is not anticipated that the new system should have any
+     direct effect on the hosts.
+
+
+
+
+
+          [ This RFC was put into machine readable form for entry ]
+          [ into the online RFC archives by BBN Corp. under the   ]
+          [ direction of Alex McKenzie.                   12/96   ]
+
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+                                                                [Page 1]
+