Service Assurance Agent Overview
Page 1382 7750 SR OS Services Guide
Service Assurance Agent Overview
In the last few years, service delivery to customers has drastically changed. Services such as VPLS
and VPRN are offered. The introduction of Broadband Service Termination Architecture (BSTA)
applications such as Voice over IP (VoIP), TV delivery, video and high speed Internet services
force carriers to produce services where the health and quality of Service Level Agreement (SLA)
commitments are verifiable to the customer and internally within the carrier.
SAA is a feature that monitors network operations using statistics such as jitter, latency, response
time, and packet loss. The information can be used to troubleshoot network problems, problem
prevention, and network topology planning.
The results are saved in SNMP tables are queried by either the CLI or a management system.
Threshold monitors allow for both rising and falling threshold events to alert the provider if SLA
performance statistics deviate from the required parameters.
SAA Application
SAA allows two-way timing for several applications. This provides the carrier and their customers
with data to verify that the SLA agreements are being properly enforced.
Two-way time measures requests from this node to the specified DNS server. This is done by
performing an address request followed by an immediate release of the acquired address once the
time measurement has been performed.
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