RFC 1857 (rfc1857) - Page 1 of 27
A Model for Common Operational Statistics
Alternative Format: Original Text Document
Network Working Group M. Lambert
Request For Comments: 1857 Pittsburgh Supercomputing Center
Obsoletes: 1404 October 1995
Category: Informational
A Model for Common Operational Statistics
Status of this Memo
This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
Abstract
This memo describes a model for operational statistics in the
Internet. It gives recommendations for metrics, measurements,
polling periods and presentation formats and defines a format for the
exchange of operational statistics.
Acknowledgements
The author would like to thank the members of the Operational
Statistics Working Group of the IETF whose efforts made this memo
possible, particularly Bernhard Stockman, author of RFC 1404, and
Nevil Brownlee, who produced the revised BNF description of the
model. Wherever possible, their text has been changed as little as
feasible.
Table of Contents
1. Introduction ............................................. 2
2. The Model ................................................ 5
2.1 Metrics and Polling Periods .............................. 5
2.2 Format for Storing Collected Data ........................ 6
2.3 Reports .................................................. 6
2.4 Security Issues .......................................... 6
3. Categorization of Metrics ................................ 7
3.1 Overview ................................................. 7
3.2 Categorization of Metrics Based on Measurement Areas ..... 7
3.2.1 Utilization Metrics ...................................... 7
3.2.2 Performance Metrics ...................................... 7
3.2.3 Availability Metrics ..................................... 8
3.2.4 Stability Metrics ........................................ 8
3.3 Categorization Based on Availability of Metrics .......... 8
3.3.1 Per Interface Variables Already in Standard MIB .......... 8
3.3.2 Per Interface Variables in Private Enterprise MIB ........ 9
3.3.3 Per interface Variables Needing High Resolution Polling .. 9
Lambert Informational