Service levels that were guaranteed to customers and end usersfor example a

Service levels that were guaranteed to customers and

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Service levels that were guaranteed to customers and end users—for example, a certain amount of bandwidth— need to be monitored and ensured. This section provides a closer look at the benefits that effective network management and management tools can provide—reduced cost, improvements in the quality of service that the network provides, and increased revenue. From now on, we refer to the organization that is running a network simply as the network provider.
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The Importance of Network Management: Cost One of the main goals of network management is to make operations more efficient and operators more productive. The ultimate goal is to reduce and minimize the total cost of ownership (TCO) that is associated with the network. The TCO consists essentially of the equipment cost, as well as the cost to operate the network Equipment cost is typically amortized over several years, to take into account the lifetime of the equipment. Operational cost includes cost such as operating personnel, electricity, physical space, and cost for the operations support infrastructure.
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The Importance of Network Management: Cost (Cont.) Figure 3.2: Total Cost of Network Equipment Ownership
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The Importance of Network Management: Quality Other operational aspects are not related to cost but are equally important. One such aspect concerns the quality of the communications and networking services that are provided. This includes properties such as the bandwidth that is effectively available, or the delay in the network,which, in turn, is a factor in the responsiveness a user experiences when using services over a network.
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The Importance of Network Management: Quality(Cont.) Quality also includes the reliability and the availability of a communications service: As an end user, can we rely on our service, or do we need to often retransmit data because we experience interruptions in the middle of our communication session, such as timeouts and no response from the remote end because of a dropped communication session? Is the service always available when we need it, or do we sometimes (in the case of voice service) get no dial tone? Availability is not simply nice to have; lives can literally depend on it. For example, think of a 911 service in a telephone network, or connectivity for critical equipment in a hospital.
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The Importance of Network Management: Quality(Cont.) Reliability and availability are attributes that are typically associated only with the network itself. This involves developing network equipment with redundant hardware so that if a component fails, a hot failover to a spare can occur. In addition, networks themselves are carefully engineered to allow for redundant communication paths, in many cases ensuring network availability that is overall higher than the availability of any single element in the network.
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The Importance of Network Management: Revenue Network management is not just related to cost and quality. Network management can also be a revenue enabler that opens up market opportunities that would not exist without it. Here are some examples: 1.
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