RFC1925. It must be approved as a corporate policy and presented during induction training for every employee!

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RFC1925 - The Twelve Networking Truths

Network Working Group R. Callon, Editor
Request for Comments: 1925 IOOF
Category: Informational 1 April 1996

The Twelve Networking Truths

Status of this Memo

This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.

Abstract

This memo documents the fundamental truths of networking for the
Internet community. This memo does not specify a standard, except in
the sense that all standards must implicitly follow the fundamental
truths.

Acknowledgements

The truths described in this memo result from extensive study over an
extended period of time by many people, some of whom did not intend
to contribute to this work. The editor merely has collected these
truths, and would like to thank the networking community for
originally illuminating these truths.

1. Introduction

This Request for Comments (RFC) provides information about the
fundamental truths underlying all networking. These truths apply to
networking in general, and are not limited to TCP/IP, the Internet,
or any other subset of the networking community.

2. The Fundamental Truths

(1) It Has To Work.

(2) No matter how hard you push and no matter what the priority,
you can't increase the speed of light.

(2a) (corollary). No matter how hard you try, you can't make a
baby in much less than 9 months. Trying to speed this up
*might* make it slower, but it won't make it happen any
quicker.

(3) With sufficient thrust, pigs fly just fine. However, this is
not necessarily a good idea. It is hard to be sure where they
are going to land, and it could be dangerous sitting under them
as they fly overhead.

(4) Some things in life can never be fully appreciated nor
understood unless experienced firsthand. Some things in
networking can never be fully understood by someone who neither
builds commercial networking equipment nor runs an operational
network.

(5) It is always possible to aglutenate multiple separate problems
into a single complex interdependent solution. In most cases
this is a bad idea.

(6) It is easier to move a problem around (for example, by moving
the problem to a different part of the overall network
architecture) than it is to solve it.

(6a) (corollary). It is always possible to add another level of
indirection.

(7) It is always something

(7a) (corollary). Good, Fast, Cheap: Pick any two (you can't
have all three).

(8) It is more complicated than you think.

(9) For all resources, whatever it is, you need more.

(9a) (corollary) Every networking problem always takes longer to
solve than it seems like it should.

(10) One size never fits all.

(11) Every old idea will be proposed again with a different name and
a different presentation, regardless of whether it works.

(11a) (corollary). See rule 6a.

(12) In protocol design, perfection has been reached not when there
is nothing left to add, but when there is nothing left to take
away.

Security Considerations

This RFC raises no security issues. However, security protocols are
subject to the fundamental networking truths.

References

The references have been deleted in order to protect the guilty and
avoid enriching the lawyers.

Author's Address

Ross Callon
Internet Order of Old Farts
c/o Bay Networks
3 Federal Street
Billerica, MA 01821

Phone: 508-436-3936
EMail: rcallon@baynetworks.com

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