RFC 1573 (rfc1573) - Page 1 of 55

Evolution of the Interfaces Group of MIB-II

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Network Working Group                                      K. McCloghrie
Request for Comments: 1573                            Hughes LAN Systems
Obsoletes: 1229                                            F. Kastenholz
Category: Standards Track                                   FTP Software
                                                            January 1994


              Evolution of the Interfaces Group of MIB-II

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Table of Contents

   1. Introduction .............................................    2
   2. The SNMPv2 Network Management Framework ..................    2
   2.1 Object Definitions ......................................    3
   3 Experience with the Interfaces Group ......................    3
   3.1 Areas of Clarification/Revision .........................    3
   3.1.1 Interface Numbering ...................................    4
   3.1.2 Interface Sub-Layers ..................................    4
   3.1.3 Virtual Circuits ......................................    5
   3.1.4 Bit, Character, and Fixed-Length Interfaces ...........    5
   3.1.5 Counter Size ..........................................    5
   3.1.6 Interface Speed .......................................    6
   3.1.7 Multicast/Broadcast Counters ..........................    6
   3.1.8 Addition of New ifType values .........................    6
   3.1.9 ifSpecific ............................................    6
   3.2 Clarifications/Revisions ................................    7
   3.2.1 Interface Numbering ...................................    7
   3.2.2 Interface Sub-Layers ..................................    8
   3.2.3 Guidance on Defining Sub-layers .......................   11
   3.2.4 Virtual Circuits ......................................   12
   3.2.5 Bit, Character, and Fixed-Length Interfaces ...........   12
   3.2.6 Counter Size ..........................................   14
   3.2.7 Interface Speed .......................................   16
   3.2.8 Multicast/Broadcast Counters ..........................   16
   3.2.9 Trap Enable ...........................................   17
   3.2.10 Addition of New ifType values ........................   17
   3.2.11 InterfaceIndex Textual Convention ....................   17
   3.2.12 IfAdminStatus and IfOperStatus .......................   18
   3.2.13 Traps ................................................   19
   3.2.14 ifSpecific ...........................................   20



McCloghrie & Kastenholz
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