RFC 991 (rfc991) - Page 2 of 46
Official ARPA-Internet protocols
Alternative Format: Original Text Document
RFC 991 November 1986 Official ARPA-Internet Protocols The DEPENDENCIES indicate what other protocols are called upon by this protocol. The CONTACT indicates a person who can answer questions about the protocol. In particular, the status may be: required - all hosts must implement the required protocol, recommended - all hosts are encouraged to implement the recommended protocol, elective - hosts may implement or not the elective protocol, experimental - hosts should not implement the experimental protocol unless they are participating in the experiment and have coordinated their use of this protocol with the contact person, and none - this is not a protocol. For further information about protocols in general, please contact: Joyce K. Reynolds USC - Information Sciences Institute 4676 Admiralty Way Marina del Rey, California 90292-6695 Phone: (213) 822-1511 ARPA mail: JKREYNOLDS@ISI.EDU Reynolds & Postel



