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By: Kaynam HedayatCTO, EXFO Service Assurance

Date: September 27, 2011

OSS-BSS World Summit

Trends in Service Assurance

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What we do at EXFO

Solutions for cost-effective deployment and reliable operation of high-speed wireline and

wireless networks

Wireline network testing

Wirelessnetwork testing

Service Assurance

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Trends in Service Assurance

› Achieving End-to-End Service Assurance› Leveraging standards for cooperative SA with

existing network elements

› Integration of Probe and Performance Management Systems› Integration of service and network KPI’s

› Intelligent Alarms› Expert analysis of events with rich root cause data

prior to issuing the alarm

› Into the Cloud› Service Assurance in the Cloud

Service Assurance

Service Management

Fault & Event Management

Performance Monitoring

Probe Systems

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The Emerging Standards Model

End-to-End Service Assurance through cooperation with existing network elements

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New Standards Supporting the Emerging Model

› VoIP (for bVoIP, cVoIP, and peering)› RTCP-XR (IETF RFC3611)› NCS Loopback› SIP Media Loopback› SIP Publish/Notify

› IP/MPLS & Carrier Ethernet› TWAMP (IETF RFC5357)› 802.1ag› Y.1731

› IPTV (for Broadcast, VOD, & Interactive Video)› TR-069› TR-143› RTCP-XR

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Need independent assessmentof each circuit across two architectures

Non-stop Testing 24x7 of all Towers Leveraging standard Protocols ITU-T Y.1731 KPIs from MEF 10.2 Availability, Loss, Delay and Frame Delay Variation Report on Quality of:

Each Tower Each Ethernet Provider

Red Metro Ethernet

Provider

Blue Metro Ethernet

Provider

MME/SGW/MSC

Tower 1VLAN 101 Tower 2

VLAN 102 Tower 3

VLAN 103

Tower 4VLAN 104 Tower 5

VLAN 105 Tower 6

VLAN 106

CentralOffice

3G/4G Mobile Operator offering Ethernet Backhaul OLAs & SLAs

Case StudyLeveraging Standards in Mobile Backhaul

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Integration of Probe & Performance Management Systems

› Goal: provide correlated network and service performance KPI’s› Probe systems: provide the service view› Performance Management: provide the network view› Opportunity: one system to correlate KPI’s

› Example: correlation of link utilization (network view) with link performance (service view)

Service KPILoss/Latency/Jitter

802.1ag/Y.1731

Correlated Network& Service KPI

Network KPI(Utilization, CPU/Memory)

Performance Monitoring

Probe Systems

Service Management

Fault & Event Management

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Intelligent Alarms

Detect

Isolate

Diagnose

Repair or

Recove

r

Validate

› The problem management process› Detect, know there is a problem› Isolate, identify where the problem is› Diagnose, determine the root cause of the problem› Recover, restore service if it is down or Repair, fix the cause› Validate, verify that the problem was fixed, and it does not come back

› Problems Detected are sent to the Fault Manager via notification traps

› Isolation Reports, Diagnosis Tools, and Repair Fixes are Launched from the Fault Manager

› Provide alarms with rich context for effective isolation and diagnosis of service quality events

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Cloud Based SA

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Thank You