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RFC66 - NIC - third level ideas and other noise

王朝other·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

Network Working Group S. Crocker

Request for Comments #66 UCLA

26 August 70

3rd Level Ideas and other Noises

On 12 August 70, I met a BBN with representatives from BBN and MIT and

we discussed third llevel protocol.

Dial-up The following proposed dial-up protocol was agreed upon at the

meeting.

The purpose of this piece of protocol is to get a process at one site

(hereafter the using site) in contact with the logger at the other site

(hereafter the serving site).

To initiate contact, the using process attaches a receive socket US and

requests connection to socket 1 in the serving host. The using NCP thus

sends

1 4 4 1

---------------------------------------------------

RTS US 1 p

---------------------------------------------------

ALL P space

-------------------------------

over link 1, where US is the user's receive socket, p is the link, and

space is some nominal spae allocation.

The serving Host may decide to refuse contact, in which case it will

respond with the standard CLS. If it accepts contact, however, it will

send exactly an even 32 bit number over the connection and close the

connection. This even 32 bit number is the name of a receive socket in

the serving Host. This socket and the next higher numbered socket are

Network Working Group S. Crocker

Request for Comments #66 UCLA

26 August 70

reserved for contact with the user. Thus the serving NCP sends

1 4 1

----------------------------

STR 1 US

----------------------------

on link 1, followed by

4

-----------

SS

-----------

on link p. Note that SS must be even.

After sending the server socket number, SS, the NCP sends

1 4 4

-------------------------------------

CLS 1 US

-------------------------------------

STR SS+1 US

------------------------------------------

RTS SS US+1 q

------------------------------------------

ALL q space

-----------------------------

Network Working Group S. Crocker

Request for Comments #66 UCLA

26 August 70

The using Host also sets up these connections by sending

1 4 4

----------------------------------------

CLS US 1

----------------------------------------

STR US+1 SS

--------------------------------------------

RTS US SS+1 r

--------------------------------------------

At this point the user should be connected to the logger at the serving

site.

Standard Console

We next agreed on an initial network standard console: 7-bit ASCII

in 8 bit fields with the eight bit on, transmitted in contiguous

streams. The speific codes are listed in appendix H of the IMP

Operations manual, BBN report #1877. This seems to work only some

hardship on PDP-10's and be fine for all others.

For break or interrupt many systems use one of the standard

characters; for those which need another kind of signal,

1 1

------------

INR r

------------

sent over the control link should suffice.

[ This RFCwas put into machine readable form for entry ]

[ into the online RFCarchives by Gottfried Janik 2/98 ]

 
 
 
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