Browse Prior Art Database

RITA -- The Reliable Internetwork Troubleshooting Agent (RFC2321)

IP.com Disclosure Number: IPCOM000002888D
Original Publication Date: 1998-Apr-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 5 page(s) / 11K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

A. Bressen: AUTHOR

Abstract

A Description of the usage of Nondeterministic Troubleshooting and Diagnostic Methodologies as applied to today's complex nondeterministic networks and environments.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 26% of the total text.

Network Working Group A. Bressen

Request for Comments: 2321 Cohesive Network Systems

Category: Informational 1 April 1998

RITA -- The Reliable Internetwork Troubleshooting Agent

Status of this Memo

This memo provides information for the Internet community. It does

not specify an Internet standard of any kind. Distribution of this

memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (1998). All Rights Reserved.

Abstract

A Description of the usage of Nondeterministic Troubleshooting and

Diagnostic Methodologies as applied to today's complex

nondeterministic networks and environments.

1. Introduction

Increasingly, IETF efforts have been devoted to aiding network

management, troubleshooting, and diagnosis. Results have included

SNMP, cflowd, and RMON, and ongoing projects at the time of this

writing include Universal Logging Protocol and Distributed

Management. These tools work well within the horizon of

deterministic situations in which the configuration of the network or

relevant components is known or can be relatively easily determined.

They do not well address many problems that are related to the

complex internetworks we have today, such as:

o Networks where the root bridge for a world-wide bridged

network is suboptimally located, such as under the desk of a

secretary who kicks off her shoes when she arrives in the

morning.

o Networks where a hub is located adjacent to a monitor that

emits disruptive RF when displaying certain graphics.

o Networks where an ISP and several of their customers use

network 10.0.0.0 internally and do not hide RIP broadcasts from

one another.

o Networks where gateways are data-sensitive

o Networks where vendors inadvertently ship units with

duplicate MAC addresses to the same end-user or where all users

have a tool for changing MAC addresses.

In this document we introduce a new hardware-based tool for diagnosis

and repair of network related hardware and software problems. This

tool is best suited to addressing nondeterministic problems such as

those described above. This tool has broad areas of application at

all levels of the OSI model; in addition to uses in the physical,

network, transport and application layers, it has been used to

successfully address problems at the political and religious layers

as well. RITA, the Reliable Internet Troubleshooting Agent, was

developed initially at The Leftbank Operation (now known as Cohesive

Network Systems, New England Division) based on a hardware platform

supplied by Archie McPhee (Reference [1]). A typical RITA unit is

depicted in Figure 1.

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