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Unformatted text preview: a certain RFC has been replaced by a newer RFC, and if a newer RFC updates some of the
information in that RFC. There are a few important RFCs.
1. The Assigned Numbers RFC specifies all the magic numbers and constants that are used
in the Internet protocols. At the time of this writing the latest version of this RFC is 1340
[Reynolds and Postel 1992]. All the Internet-wide well-known ports are listed here.
When this RFC is updated (it is normally updated at least yearly) the index listing for
1340 will indicate which RFC has replaced it.
2. The Internet Official Protocol Standards, currently RFC 1600 [Postel 1994]. This RFC
specifies the state of standardization of the various Internet protocols. Each protocol has
one of the following states of standardization: standard, draft standard, proposed
standard, experimental, informational, or historic. Additionally each protocol has a
requirement level: required, recommended, elective, limited use, or not recommended.
Like the Assigned Numbers RFC, this RFC is also reissued regularly. Be sure you're
reading the current copy.
3. The Host Requirements RFCs, 1122 and 1123 [Braden 1989a, 1989b]. RFC 1122 handles
the link layer, network layer, and transport layer, while RFC 1123 handles the application file:///D|/Documents%20and%20Settings/bigini/Docu...homenet2run/tcpip/tcp-ip-illustrated/introduc.htm (14 of 20) [12/09/2001 14.46.31] Chapter 1. Introduction layer. These two RFCs make numerous corrections and interpretations of the important
earlier RFCs, and are often the starting point when looking at any of the finer details of a
given protocol. They list the features and implementation details of the protocols as either
"must," "should," "may," "should not," or "must not."
[Borman 1993b] provides a practical look at these two RFCs, and RFC 1127 [Braden
1989c] provides an informal summary of the discussions and conclusions of the working
group that developed the Host Requirements RFCs.
4. The Router Requirements RFC. The official version of...
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This test prep was uploaded on 04/04/2014 for the course ECE EL5373 taught by Professor Guoyang during the Spring '12 term at NYU Poly.
- Spring '12