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54 Chapter 2: Business and Technical Requirements
Network management comes in a variety of packages. In its simplest form, network
management might involve a laptop loaded with protocol analyzer software monitoring
network activity. In another scenario, network management might include a distributed
database, auto-polling of network devices, and high-end workstations generating real-time
graphical views of network topology changes and traffic.
The network management model is the primary means for understanding the major functions
of network management systems. This model consists of five conceptual areas:
·
Performance
·
Configuration
·
Accounting
·
Fault
·
Security
Business Concerns
Simply stated, business issues always revolve around cost. Even in the rarest of cases, where a
network design project is blessed with what appears to be a virtually unlimited budget, there is
still a point where cost becomes a constraining factor in the decision-making process. In
addition to fixed equipment costs, recurring costs must be considered. Determining the total
cost of ownership is critical to ensuring the network's long-term success.
NOTE
Cost is the metric against which all other design goals must be measured. You've got to pay to
play!
For the CCDP, designing an internetwork can be a challenging task. Understanding the problem
is the key to creating the optimum campus network design.
Determining how long the recommended design will remain viable with today's dynamic
requirements will always be an art. When recommending a design, the CCDP should always
think about future needs that will impact expandability, upgradability, and scalability.
Security
The CCDP should expect sensitive information to cross the campus network. The key
buzzwords the CCDP should remember when designing for security are identity and integrity.
87200333.book Page 54 Wednesday, August 22, 2001 2:18 PM