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More Comments on the Forthcoming Protocol (RFC0040)

IP.com Disclosure Number: IPCOM000003575D
Original Publication Date: 1970-Mar-27
Included in the Prior Art Database: 2000-Sep-13
Document File: 2 page(s) / 4K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

E. Harslem: AUTHOR [+2]

Abstract

We have recently discussed NWG/RFC Nos. 36 and 39 with Steve Crocker, UCLA. Steve has asked that we elaborate on the errors, queries, and HOST status that were mentioned in NWG/RFC #39.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 84% of the total text.

Network Working Group E. Harslem

Request for Comments: 40 J. Heafner

RAND

March 1970

More Comments on the Forthcoming Protocol

We have recently discussed NWG/RFC Nos. 36 and 39 with Steve Crocker,

UCLA. Steve has asked that we elaborate on the errors, queries, and

HOST status that were mentioned in NWG/RFC #39.

Please voice your opinions soon in order to affect the forthcoming

protocol specifications.

ERROR MESSAGES

is an eight-bit field that specifies the error type. The

assigned codes are shown below. is a 16-bit integer

that indicates the length of the in bits. The

is the spurious command.

The ranges of are shown below in hexidecimal.

00 Unspecified error types

10-0F Resource errors

10-1F Status errors

20-2F Content errors

30-3F Unused

Specific values of are shown below with their meaning.

value Semantics

00 Unspecified errors.

01 Request for an invalid resource.

02 Request for an exhausted resource, try later.

03-0F Unused.

10 Invalid , i.e., link connected but unblocked.

11 Invalid .

12 Invalid , i.e., connected but no

received.

value Semantics

13 Message received on blocked link.

14-1F Unused.

20 Unknown command code.

21 Message received on unconnected link.

22 Invalid .

23 Invalid .

24 Invalid , i.e., link not connected.

25 Invalid .

26 Invalid .

27 Invalid .

28 Invalid , i.e., not connected.

29-2F Unused.

30-FF Unused.

QUERIES

or

The is the query indicated in NWG/RFC #39 and is the reply.

The format of is shown below; also refer to NWG/RFC #36, p. 3.

::= <16 bit count of relevant connection table entries>

::=

::=

HOST STATUS

An NCP may be up, down...