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Network Management: Accounting and Performance Strategies by Ralf Wolter, Benoit Claise - CCIE No. 2686

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Chapter 11. IP SLA

Cisco IP SLA is an embedded feature set in Cisco IOS Software that allows you to analyze service levels for IP applications and services. It is one of those Cisco device instrumentation features with a long history. IOS 11.2 introduced the Response Time Reporter (RTR), which supported three functions: ICMP Ping, ICMP Echo Path, and SSCP (IBM SNA native echo). In those days, multiple customers migrated their dedicated IBM SNA infrastructure to an IP network and realized how limited IP reporting functions were compared to IBM’s SNA network. RTR addressed this issue and significantly increased functionality over the years. Cisco renamed RTR Service Assurance Agent (SAA) in Cisco IOS Software Release 12.0(5)T. New features were ...

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