RFC 1516 (rfc1516) - Page 3 of 40

Definitions of Managed Objects for IEEE 802

RFC 1516                   802.3 Repeater MIB             September 1993


   implementation-specific properties of non-standard repeater-like
   devices is outside the scope of this memo.

   The definitions presented here are based on the IEEE draft standard
   P802.3K, "Layer Management for 10 Mb/s Baseband Repeaters" [8].
   Implementors of these MIB objects should note that [8] explicitly
   describes when, where, and how various repeater attributes are
   measured.  The IEEE document also describes the effects of repeater
   actions that may be invoked by manipulating instances of the MIB
   objects defined here.

   The counters in this document are defined to be the same as those
   counters in the IEEE 802.3 Repeater Management draft, with the
   intention that the same instrumentation can be used to implement both
   the IEEE and IETF management standards.

2.1.  Terminology

2.1.1.  Repeaters, Hubs and Concentrators

   In late 1988, the IEEE 802.3 Hub Management task force was chartered
   to define managed objects for both 802.3 repeaters and the proposed
   10BASE-FA synchronous active stars.  The term "hub" was used to cover
   both repeaters and active stars.

   In March, 1991, the active star proposal was dropped from the
   10BASE-F draft.  Subsequently the 802.3 group changed the name of the
   task force to be the IEEE 802.3 Repeater Management Task Force, and
   likewise renamed their draft.

   The use of the term "hub" has led to some confusion, as the terms
   "hub," "intelligent hub," and "concentrator" are often used to
   indicate a modular chassis with plug-in modules that provide
   generalized LAN/WAN connectivity, often with a mix of 802.3 repeater,
   token ring, and FDDI connectivity, internetworked by bridges,
   routers, and terminal servers.

   To be clear that this work covers the management of IEEE 802.3
   repeaters only, the editors of this MIB definitions document chose to
   call this a "Repeater MIB" instead of a "Hub MIB."

2.1.2.  Repeaters, Ports, and MAUs

   The following text roughly defines the terms "repeater," "port," and
   "MAU" as used in the context of this memo.  This text is imprecise
   and omits many technical details.  For a more complete and precise
   definition of these terms, refer to Section 9 of [7].




McMaster & McCloghrie