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IMS Service Monitoring

IMS Service Monitoring. Converged Tool Set. End-to-End Phased Analysis Converge Platform Management Challenges Key Lessons. Will Brouwer Business Development Will_Brouwer@agilent.com. End-to-End Visibility. Troubleshoot. Manage. Install & Maintain. Monitor & Alarm. SS7 IMS

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IMS Service Monitoring

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  1. IMS Service Monitoring

  2. Converged Tool Set • End-to-End • Phased Analysis • Converge Platform • Management Challenges • Key Lessons Will Brouwer Business Development Will_Brouwer@agilent.com

  3. End-to-End Visibility Troubleshoot Manage Install & Maintain Monitor & Alarm SS7 IMS VoIP SS7 GPRS IP GPRS IP SS7 IMS VoIP SS7 IMS VoIP Content Media/MOS IPTV, VoIP GPRS IP Access UTRAN SS7 IPTV & VoD HLR MSC STP GPRS Node B Node B SGSN GGSN IMS HSS App Servers GSM IP Content & Services BTS BTS MGW MSC Server S-CSCF SIG G/W I-CSCF BGCF MRFP P-CSCF PDF MGCF MRFC Cable/xDSL/WiFi IP Interconnect VoIP Signaling Access Node B-RAS

  4. Phased Analysis Implementation Lab & Trial Engineering Operations& NOC ConvergedNetwork& Services Interpret.. Reactive Analyze.. HSS App Servers Guide.. S-CSCF SIG G/W I-CSCF BGCF MRFP Customers P-CSCF PDF MGCF MRFC GSM WiFi Proactive Sample Agilent IMS tracefrom SIP-based combined wireless/wireline device GPRS UMTS VoIP

  5. Convergent Platform Convergent Applications MeasurementFramework xDR Store xDR enrichment Correlation & xDR Generation Data Gathering Probes

  6. IMS Management Challenges Significant amounts of inter-working with other protocols Interoperability (mobility, NEMs) Location & Presence Many elements involved in call setup path Services are easy to deploy but few tools to quantify impact on network Troubleshooting is complex Managing the end-to-end customer experience And…. Specs are evolving fast: significant extensions to signalling procedures IPSec with null encryption within IMS IPv6 Compressed SIP

  7. Key Lessons New Paradigm for troubleshooting Real-time and Historic view is essential Continuous Evolution Services – i.e. signaling and service flows Architectures – session border controllers Equipment – e.g. handset firmware changes behavior Protocol implementation/stacks - vary widely User community dynamics What to measure? KPIs need to be service-centric in addition to network Element Capacity and Load – prediction and monitoring Trunk planning on media gateway Performance? Data retention, Transaction rate

  8. Key Lessons • IMS Monitoring Strategy • Prioritize monitoring of nodes according to …. • Does the node inter-work with another protocol? • Does the node perform a critical service routing decision? • Suggested order of priorities • I-CSCF => Gatekeeper to network • S-CSCF => Decides on admission to services and routes services • MGCF => Circuit inter-working. Access to media path QoS info • MRFC => Access to media QoS information • P-CSCF => Simple load balancer S-CSCF BGCF MGCF I-CSCF MRFC P-CSCF PDF

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