RFC 1490 (rfc1490) - Page 2 of 35
Multiprotocol Interconnect over Frame Relay
Alternative Format: Original Text Document
RFC 1490 Multiprotocol over Frame Relay July 1993
1. Conventions and Acronyms
The following language conventions are used in the items of
specification in this document:
o Must, Shall or Mandatory -- the item is an absolute
requirement of the specification.
o Should or Recommended -- the item should generally be
followed for all but exceptional circumstances.
o May or Optional -- the item is truly optional and may be
followed or ignored according to the needs of the
implementor.
All drawings in this document are drawn with the left-most bit as the
high order bit for transmission. For example, the dawings might be
labeled as:
0 1 2 3 4 5 6 7 bits
+---+---+---+---+---+---+---+
+---------------------------+
| flag (7E hexadecimal) |
+---------------------------+
| Q.922 Address* |
+-- --+
| |
+---------------------------+
: :
: :
+---------------------------+
Drawings that would be too large to fit onto one page if each octet
were presented on a single line are drawn with two octets per line.
These are also drawn with the left-most bit as the high order bit for
transmission. There will be a "+" to distinguish between octets as
in the following example.
Bradley, Brown & Malis