rfc1780.txt

<VC++网络游戏建摸与实现>源代码

             level of standard.

      1743 - IEEE 802.5 MIB using SMIv2

             A Draft Standard protocol.

      1742 - AppleTalk Management Information Base II

             A Proposed Standard protocol.

      1741 - MIME Content Type for BinHex Encoded Files

             This is an information document and does not specify any
             level of standard.

      1740 - MIME Encapsulation of Macintosh Files - MacMIME

             A Proposed Standard protocol.

      1739 - A Primer On Internet and TCP/IP Tools

             This is an information document and does not specify any
             level of standard.

      1738 - Uniform Resource Locators (URL)

             A Proposed Standard protocol.

      1737 - Functional Requirements for Uniform Resource Names

             This is an information document and does not specify any
             level of standard.

      1736 - Functional Recommendations for Internet Resource Locators

             This is an information document and does not specify any
             level of standard.






Internet Architecture Board                                    [Page 18]

RFC 1780                   Internet Standards                 March 1995


      1735 - NBMA Address Resolution Protocol (NARP)

             An Experimental protocol.

      1734 - POP3 AUTHentication command

             A Proposed Standard protocol.

      1733 - Distributed Electronic Mail Models In IMAP4

             This is an information document and does not specify any
             level of standard.

      1732 - IMAP4 Compatibility with IMAP2 and IMAP2bis

             This is an information document and does not specify any
             level of standard.

      1731 - IMAP4 Authentication Mechanisms

             A Proposed Standard protocol.

      1730 - Internet Message Access Protocol - Version 4

             A Proposed Standard protocol.

      1729 - Using the Z39.50 Information Retrieval Protocol

             This is an information document and does not specify any
             level of standard.

      1728 - Resource Transponders

             This is an information document and does not specify any
             level of standard.

      1727 - A Vision of an Integrated Internet Information Service

             This is an information document and does not specify any
             level of standard.

      1726 - Technical Criteria for Choosing IP The Next Generation
             (IPng)

             This is an information document and does not specify any
             level of standard.





Internet Architecture Board                                    [Page 19]

RFC 1780                   Internet Standards                 March 1995


      1719 - A Direction for IPng

             This is an information document and does not specify any
             level of standard.

6.1.2.  Other Changes:

   The following are changes to protocols listed in the previous
   edition.

      1657 - Definitions of Managed Objects for the Fourth Version of
             the Border Gateway Protocol (BGP-4) using SMIv2904 -
             Exterior Gateway Protocol

             Elevated to Draft Standard.

      1009 - Gateway Requirements

             Moved to Historic.
































Internet Architecture Board                                    [Page 20]

RFC 1780                   Internet Standards                 March 1995


6.2.  Standard Protocols

Protocol   Name                                      Status    RFC STD *
========   =====================================     ======== ==== === =
--------   Internet Official Protocol Standards      Req      1720   1
--------   Assigned Numbers                          Req      1700   2
--------   Host Requirements - Communications        Req      1122   3
--------   Host Requirements - Applications          Req      1123   3
IP         Internet Protocol                         Req       791   5
            as amended by:--------
--------     IP Subnet Extension                     Req       950   5
--------     IP Broadcast Datagrams                  Req       919   5
--------     IP Broadcast Datagrams with Subnets     Req       922   5
ICMP       Internet Control Message Protocol         Req       792   5
IGMP       Internet Group Multicast Protocol         Rec      1112   5
UDP        User Datagram Protocol                    Rec       768   6
TCP        Transmission Control Protocol             Rec       793   7
TELNET     Telnet Protocol                           Rec   854,855   8
FTP        File Transfer Protocol                    Rec       959   9
SMTP       Simple Mail Transfer Protocol             Rec       821  10
MAIL       Format of Electronic Mail Messages        Rec       822  11
CONTENT    Content Type Header Field                 Rec      1049  11
NTPV2      Network Time Protocol (Version 2)         Rec      1119  12
DOMAIN     Domain Name System                        Rec 1034,1035  13
DNS-MX     Mail Routing and the Domain System        Rec       974  14
SNMP       Simple Network Management Protocol        Rec      1157  15
SMI        Structure of Management Information       Rec      1155  16
Concise-MIB Concise MIB Definitions                  Rec      1212  16
MIB-II     Management Information Base-II            Rec      1213  17
NETBIOS    NetBIOS Service Protocols                 Ele 1001,1002  19
ECHO       Echo Protocol                             Rec       862  20
DISCARD    Discard Protocol                          Ele       863  21
CHARGEN    Character Generator Protocol              Ele       864  22
QUOTE      Quote of the Day Protocol                 Ele       865  23
USERS      Active Users Protocol                     Ele       866  24
DAYTIME    Daytime Protocol                          Ele       867  25
TIME       Time Server Protocol                      Ele       868  26
TFTP       Trivial File Transfer Protocol            Ele      1350  33
RIP        Routing Information Protocol              Ele      1058  34
TP-TCP     ISO Transport Service on top of the TCP   Ele      1006  35
ETHER-MIB  Ethernet MIB                              Ele      1643  50
PPP        Point-to-Point Protocol (PPP)             Ele      1661  51
PPP-HDLC   PPP in HDLC Framing                       Ele      1662  51

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





Internet Architecture Board                                    [Page 21]

RFC 1780                   Internet Standards                 March 1995


Applicability Statements:

   IGMP -- The Internet Architecture Board intends to move towards
   general adoption of IP multicasting, as a more efficient solution
   than broadcasting for many applications.  The host interface has been
   standardized in RFC-1112; however, multicast-routing gateways are in
   the experimental stage and are not widely available.  An Internet
   host should support all of RFC-1112, except for the IGMP protocol
   itself which is optional; see RFC-1122 for more details.  Even
   without IGMP, implementation of RFC-1112 will provide an important
   advance: IP-layer access to local network multicast addressing.  It
   is expected that IGMP will become recommended for all hosts and
   gateways at some future date.

   SMI, MIB-II SNMP -- The Internet Architecture Board recommends that
   all IP and TCP implementations be network manageable.  At the current
   time, this implies implementation of the Internet MIB-II (RFC-1213),
   and at least the recommended management protocol SNMP (RFC-1157).

   RIP -- The Routing Information Protocol (RIP) is widely implemented
   and used in the Internet.  However, both implementors and users
   should be aware that RIP has some serious technical limitations as a
   routing protocol.  The IETF is currently devpeloping several
   candidates for a new standard "open" routing protocol with better
   properties than RIP.  The IAB urges the Internet community to track
   these developments, and to implement the new protocol when it is
   standardized; improved Internet service will result for many users.

   TP-TCP -- As OSI protocols become more widely implemented and used,
   there will be an increasing need to support interoperation with the
   TCP/IP protocols.  The Internet Engineering Task Force is formulating
   strategies for interoperation.  RFC-1006 provides one interoperation
   mode, in which TCP/IP is used to emulate TP0 in order to support OSI
   applications.  Hosts that wish to run OSI connection-oriented
   applications in this mode should use the procedure described in RFC-
   1006.  In the future, the IAB expects that a major portion of the
   Internet will support both TCP/IP and OSI (inter-)network protocols
   in parallel, and it will then be possible to run OSI applications
   across the Internet using full OSI protocol "stacks".












Internet Architecture Board                                    [Page 22]

RFC 1780                   Internet Standards                 March 1995


6.3.  Network-Specific Standard Protocols

All Network-Specific Standards have Elective status.

Protocol   Name                                    State    RFC   STD *
========   =====================================   =====   =====  === =
IP-ATM     Classical IP and ARP over ATM            Prop   1577
IP-FR      Multiprotocol over Frame Relay           Draft  1490
ATM-ENCAP  Multiprotocol Encapsulation over ATM     Prop   1483
IP-TR-MC   IP Multicast over Token-Ring LANs        Prop   1469
IP-FDDI    Transmission of IP and ARP over FDDI Net Std    1390    36
IP-HIPPI   IP and ARP on HIPPI                      Prop   1374
IP-X.25    X.25 and ISDN in the Packet Mode         Draft  1356
IP-SMDS    IP Datagrams over the SMDS Service       Draft  1209
IP-FDDI    Internet Protocol on FDDI Networks       Draft  1188
ARP        Address Resolution Protocol              Std     826    37
RARP       A Reverse Address Resolution Protocol    Std     903    38
IP-ARPA    Internet Protocol on ARPANET             Std BBN1822    39
IP-WB      Internet Protocol on Wideband Network    Std     907    40
IP-E       Internet Protocol on Ethernet Networks   Std     894    41
IP-EE      Internet Protocol on Exp. Ethernet Nets  Std     895    42
IP-IEEE    Internet Protocol on IEEE 802            Std    1042    43
IP-DC      Internet Protocol on DC Networks         Std     891    44
IP-HC      Internet Protocol on Hyperchannel        Std    1044    45
IP-ARC     Transmitting IP Traffic over ARCNET Nets Std    1201    46
IP-SLIP    Transmission of IP over Serial Lines     Std    1055    47
IP-NETBIOS Transmission of IP over NETBIOS          Std    1088    48
IP-IPX     Transmission of 802.2 over IPX Networks  Std    1132    49

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

Applicability Statements:

   It is expected that a system will support one or more physical
   networks and for each physical network supported the appropriate
   protocols from the above list must be supported.  That is, it is
   elective to support any particular type of physical network, and for
   the physical networks actually supported it is required that they be
   supported exactly according to the protocols in the above list.  See
   also the Host and Gateway Requirements RFCs for more specific
   information on network-specific ("link layer") protocols.