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+Network Working Group                                     Jon Postel
+Request for Comments: #489                                UCLA-NMC
+NIC #15298                                                March 26, 1973
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+       Comment on Resynchronization of Connection Status Proposal
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+This is a comment on the proposal by Burchfiel and Tomlinson in RFC 467
+for a procedure in the host-to host protocol for resynchronization of
+connection status.  I endorse their proposal with the following trivial
+change.  The commands proposed might be more appropriately be called
+"reset connection allocation sender" and "reset connection allocation
+receiver" since the only aspect of the connection which is reset is the
+allocation.  I therefore use the names RAS and RAR respectively.
+
+The table below shows in overly concise notation my interpretation of
+the resynchronizing procedure proposed by Burchfiel and Tomlinson, this
+presentation is not intended to supersede their document but to clarify
+the procedure.  The sequence shown here can be initiated by either the
+sender or receiver either for internally generated reasons or upon the
+receipt of a RAS or RAR, if this latter is the case then sender step 5
+or receiver step 4 is satisfied.
+
+SENDER                                 RECEIVER
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+1. Set state to "wait-for-RAR"         1. Set state to "wait-for RAS"
+2. Wait till no RFNM outstanding       2. Send RAR
+3. Send RAS                            3. Process messages until
+4. Process allocates until             4. RAS received then
+5. RAR received then                   5. Zero allocation quantities
+6. Zero allocation quantities          6. Set state to "open"
+7. Set state to "open"                 7. Send a new allocate
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+       [ This RFC was put into machine readable form for entry ]
+       [ into the online RFC archives by Alex McKenzie with    ]
+       [ support from GTE, formerly BBN Corp.             9/99 ]
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+Postel                                                          [Page 1]
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