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SNMP Extensions for a Self Healing Network

IP.com Disclosure Number: IPCOM000204599D
Publication Date: 2011-Mar-05
Document File: 8 page(s) / 230K

Publishing Venue

The IP.com Prior Art Database

Abstract

SNMP allows an administrator to have real time or reported data about the health of the network. This disclosed process (SNMP Extensions for a Self Healing Network) allows a critical expansion to that concept. This process is about correcting various errors. This would make a network more stable, more robust, and more effective and at the same time reduce the need for direct intervention by a network administrator or tech support person. In small office and home networks, were there is often no network admin or on site tech support, this process would allow that network to remain healthy and stable. In essence this process is about expanding the capabilities of SNMP agents to allow the agents to correct problems as they occur.

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SNMP Extensions for a Self Healing Network

Background

Patent 6,088,141: This is a self healing network depending on additional hardware. It requires a second ring of connection to handle recovery operations. Modeled after the token ring network wherein the network has two rings, one as a backup.

Patent 5,235,99: This patent is about failed transmissions and restoring those transmissions.

Automatic Healing-Based Self Management for Network Management in Hybrid Networks (http://www.springerlink.com/content/435233484k12g521/) This is a server based solution wherein the software monitors SNMP messages sent from agents and then based on that information, responds.

Policy-Based Mobile Ad Hoc Network Management (http://www.computer.org/portal/web/csdl/doi/10.1109/POLICY.2004.1309148) paper describes a policy-based mobile ad hoc network management system. The system provides the capability to express networking requirements in the form of policies at a high level and have them automatically realized in the network by intelligent agents. This system is strictly monitoring, it takes no corrective action.

Simple Network Management Protocol: as this invention is an extension of SNMP, the various SNMP standards would constitute related prior art.

RFC 1065 - Structure and identification of management information for TCP/IP- based internets
RFC 1066 - Management information base for network management of TCP/IP- based internets
RFC 1067 - A simple network management protocol
These protocols were made obsolete by version 2 of SNMP defined in these RFC's:

RFC 1155 - Structure and identification of management information for TCP/IP- based internets
RFC 1156 - Management information base for network management of TCP/IP- based internets
RFC 1157 - A simple network management protocol
RFC 1156 (MIB-1):
RFC 1213 - Version 2 of management information base (MIB-2) for network management of TCP/IP-based internets

Discussion

Introduction

 


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SNMP is currently used to monitor networks. The current invention (SNMP Extensions for a Self Healing Network)is about extending the SNMP protocol to allow the creation of networks that are self healing. For that reason we should begin with a discussion of SNMP.

Simple Network Management Protocol (SNMP): This is a UDP-based network protocol. It is used mostly in network management systems to monitor network-attached devices for conditions that warrant administrative attention. An SNMP-managed network consists of three key components:

• Managed device
• Agent - software which runs on managed devices
• Network management system (NMS) - software which runs on the manager

SNMP itself does not define which information (which variables) a managed system should offer. Rather, SNMP uses an extensible design, where the available information is defined by management information bases (MIBs). MIBs describe the structure of the management data of a device subsystem; they use a hierarchical namespace containing...