Network Working Group D. Walden
Request for Comments: 547 BBN-NET
NIC: 17793 13 August 1973
Change to the Very Distant Host Specification
Attached is a new version of figure F-4 for BBN Report 1822,
Specification for the Interconnection of a Host and an IMP. Also
attached is replacement text for the paragraph beginning at the
bottom of page F-7 and continuing through page F-8.
Please put this RFC with your copy of 1822 pending update of 1822.
DCW/ph
SPECIAL PACKET BIT ___
|
|
___HELLO/I-HEARD-YOU BIT | ___ UNUSED __
| | | |
| | | |
V V V V
_______________________________________________________________
| | | | | |///////| | |///| |
| | | | | |///////| | |///| |
|___|___|___|___|___|___|___|___|___|___|///|///|___|___|///|___|
^ ^ PACKET WORD COUNT ^ ^ ^ ^
| | ( 6 BITS ) | | | |
| | | | | CHANNEL
| | | | | NUMBER
| | | | |
| PACKET HOST/IMP BIT | CHANNEL ZERO
| ODD/EVEN BIT | ACKNOWLEDGE BIT
| |
LAST PACKET BIT CHANNEL ONE
ACKNOWLEDGEMENT BIT
FIG. F-4 CONTROL WORD FORMAT
Walden