The rumor on how Disney uses Network Management. When the temperature rises on the park grounds at Disneyland all the prices of the beverage vending machines automatically goes up by 10% to fully capitalize on consumer demand. I believe that is an old Information Technology rumor to explain how network management works... at least I hope it is a rumor.

Why Network Management is important.
More and more organizations depend on their networks. Business' the depend heavily on the status of their networks must have network management tools as they grow. If a network dependent business such as ebay, Google, Yahoo and many others go down for even a few minutes, they can loose literally hundreds of thousands of dollars in sales and even a small piece of their customer's confidence which could in turn affect the value of their stock. When every second of network time counts the system must be monitored continuously. The most cost effective way to do this is to use an automated network management tool.

Network Management Standards
The International Organization for Standards (ISO) addresses the five major functional area of the Network Management Model as performance management, accounting management, configuration management, fault management and security management.

Performance Management
Performance management is monitoring, assessing, and adjusting the available bandwidth and network resource usage in order make a network run more efficiently. Performance management is a very important part of the network management model particularly to the business and/or organization that wants to streamline their network's performance. SolarWinds is a great tool for performance management.

Accounting Management
Accounting management monitors and assesses the usage of data and/or resources for the purpose of billing. This aspect of the network management is by Internet Service Providers to bill customers for the resources they use.

Configuration Management
The configuration side of network management is for tracking the hardware and software versions on the network to identify their effects on the network's operation. An example of this is Microsoft's System Management Server (SMS) which has the capability to monitor, manage and track every piece of software and hardware on a given network.

Fault Management
Fault Management is what most people think of when they think of network management. The purpose of this area of network management is to detect, log and alert the system administrators of problems that might effect the systems operations.

Security Management
Security Management deals with controlling access to resources and even alerting the proper authorities when certain resources are accessed. In the same way that a network manager can be paged or emailed when a resource goes down, network management systems can be used to send messages when certain files, servers or routers is accesses. Intrusion detection systems such as Symantec's Intruder Alert have this security management capability.

There are many products that support some or even all of these areas of network management. What most network management systems have in common is their use of protocols such as Simple Network Management Protocols (SNMP), SNMPv3, and Common Management Information Protocol (CMIP). There are a variety of Network Management tools ranging from Intuit's Network Management Software to IBM's Tivoli, Fidelia's Helix to AdventNet. Maybe your network management solution does not include a system that increases vending machine prices as the heat rises, but you can definitely find what you need among these and other excellent tools on the market.

References:

Cisco. Network Management Basics. Cisco.com. Feb 2002
http://www.cisco.com/

RFC 1157. Simple Network Management Protocol.
http://www.faqs.org/rfcs/rfc1157.html

Wikipedia. Network Management. Wikipedia.org.
http://en.wikipedia.org/wiki/Network_management

ITPRC. Network Management. Itprc.com
http://www.itprc.com/nms.htm