RFC 3133 (rfc3133) - Page 2 of 24

Terminology for Frame Relay Benchmarking

RFC 3133        Terminology for Frame Relay Benchmarking       June 2001


   For the purposes of computing several of the metrics, certain textual
   conventions are required.  Specifically:

   1) The notation sum {i=1 to N} A_i denotes: the summation of N
   instances of the observable A.  For example, the set of observations
   {1,2,3,4,5} would yield the result 15.

   2) The notation max {I=1 to N} A_i and min {I=1 to N} A_i denotes:
   the maximum or minimum of the observable A over N instances.  For
   example, given the set of observations {1,2,3,4,5}, max {i=1 to 5} =
   5 and min {I=1 to 5} = 1.

   The terms defined in this memo will be used in addition to terms
   defined in RFCs 1242, 1944 and 2285.  This memo is a product of the
   Benchmarking Methodology Working Group (BMWG) of the Internet
   Engineering Task Force(IETF).

2. Existing Definitions

   RFC 1242, "Benchmarking Terminology for Network Interconnect
   Devices", should be consulted before attempting to make use of this
   document.  RFC 1944, "Benchmarking Methodology for Network
   Interconnect Devices", contains discussions of a number of terms
   relevant to the benchmarking of switching devices and should also be
   consulted.  RFC 2285, "Benchmarking Terminology for LAN Switching
   Devices", contains a number of terms pertaining to traffic
   distributions and datagram interarrival.  For the sake of clarity and
   continuity this RFC adopts the template for definitions set out in
   Section 2 of RFC 1242.

II. Definitions

   The definitions presented in this section have been divided into two
   groups.  The first group is formal definitions, which are required in
   the definitions of the performance metrics but are not themselves
   strictly metrics.  These definitions are subsumed from other work
   done in other working groups both inside and outside the IETF.  They
   are provided as a courtesy to the reader.













Dunn & Martin                Informational