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CCIE Routing and Switching v4.0 Quick Reference, Second Edition by Steven Means, Jacob Uecker, Brad Ellis

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Chapter 6. Network Optimization

IP Service Level Agreement (SLA)

One of the most important aspects in maintaining a network is providing a guarantee of a specific level of service to customers. To ensure that such an agreement is met at all times, IOS provides a mechanism to actively test specific metrics, called IP SLA. When configured, the IP SLA service actively monitors a specific aspect of the network, such as UDP VOIP jitter, DNS response time, ping latency, and so on. If the IP SLA thresholds are not met, IOS sends a notification, such as an SNMP trap or syslog message.

To create a basic IP SLA monitor, the type, options, and frequency must be specified. After the monitor has been created, a schedule is build that kicks off the monitor. ...

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