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RFC 1880 - 6.10. Obsolete Protocols
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6.10. Obsolete Protocols

Some of the protocols listed in this memo are described in RFCs that are obsoleted by newer RFCs. "Obsolete" or "obsoleted" is not an official state or status of protocols. This subsection is for information only.

While it may seem to be obviously wrong to have an obsoleted RFC in the list of standards, there may be cases when an older standard is in the process of being replaced. This process may take a year or two.

For example, the Network Time Protocol (NTP) [RFC 1119] is in its version 2 a full Standard, and in its version 3 is a Draft Standard [RFC 1305]. Once version 3 is a full Standard, version 2 will be made Historic.

Many obsoleted protocols are of little interest and are dropped from this memo altogether. Some obsoleted protocols have received enough recognition that it seems appropriate to list them under their current status and with the following reference to their current replacement.

RFC            RFC   Status     Title                               *
====           ====  =========  =================================== =
1661 obsoletes 1548  Draft /Ele The Point to Point Protocol (PPP)
1305 obsoletes 1119  Std  /Rec  Network Time Protocol (Version 2)
1533 obsoletes 1497  Draft/Rec  Bootstrap Protocol
1574 obsoletes 1139  Prop /Ele  Echo for ISO-8473
1573 obsoletes 1229  Prop /Ele  Extensions to the Generic-IF MIB
1559 obsoletes 1289  Prop /Ele  DECNET MIB
1541 obsoletes 1531  Prop /Ele  Dynamic Host Configuration Protocol
1592 obsoletes 1228  Exper/Lim  SNMP Distributed Program Interface
1528 obsoletes 1486  Exper/Lim  An Experiment in Remote Printing
1320 obsoletes 1186  Info /     MD4 Message Digest Algorithm
1057 obsoletes 1050  Hist /Not  Remote Procedure Call Version 1
1421 obsoletes 1113  Hist /Not  Mail Privacy: Procedures
1422 obsoletes 1114  Hist /Not  Mail Privacy: Key Management
1423 obsoletes 1115  Hist /Not  Mail Privacy: Algorithms
1267 obsoletes 1163  Hist /Not  Border Gateway Protocol
1268 obsoletes 1164  Hist /Not  Border Gateway Protocol

Thanks to Lynn Wheeler of Britton Lee for compiling the information in this subsection.

[Note: an asterisk at the end of a line indicates a change from the previous edition of this document.]


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RFC 1880 - 6.10. Obsolete Protocols