RFC127 - Comments on RFC123

2019-11-04 11:28:57

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　　Network Working Group J. Postel
Request for Comments # 127 20 APRil 71
NIC #5843 UCLA
[Category D.1 Computer Science
Updates 123]

Comments on RFC123

The following is my interpretation of the exchange between NCP's which
would be necessary to carry out the Initial Connection Protocol of RFC
123.

Server NCP User NCP
---------- --------

Listen for Connection on L RTS, U, L, l
STR, L, U, 32 A

Send 32 bits of data
in 1 message on link l
A
(value is S) Receive 32 bits of data
from link l (value is S)
A

CLS, L, U CLS, U, L

STR, S+1, U, B STR, U+1, S, B
s u

RTS, S, U+1, l RTS, U, S+1, l
B c

wait for connection wait for connection

ALL, l , m , b ALL, l , m , b
B B B c c c

data sent on link l data sent on link l
c B

data received on link l data received on link l
B c

[Page 1]

l , l , and l are links, m and m are message allocations, b
A B c B c B
and b are bit allocations, and all other symbols are as defined in
c
RFC123.

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