Triple-Play Service Deployment

Chapter 10: Service Assurance for Triple-Play Services
Customers
QT-200 DSL Test Head
Access Network
Active service monitoring
A mesh of transactions (IPTV channel change requests, VoIP calls,
HTTP downloads) can be created using probes and software
agents as endpoints and QoS measurements made for all
synthetically generated transactions. By placing software agents at
the customer premises and distributing hardware probes at key
points in the network, active transactions can be placed end to end
at various points within and across the network. Each of these
performance test measurements then can be aggregated and
correlated to provide a proactive measure of the service quality.
QT-200 DSL Test Head
Soft Switch
Media
Server
Softswitch LAN
QT-200 DSL Test Head
QT-200 DSL Test Head
Packet Network
Gateway
LAN
Access Network Path Monitoring
Media Server Path Monitoring
Core IP Network Path Monitoring
PSTN Gateway Path Monitoring
PSTN Network
Access Network
Figure 10.2 Example VoIP Active Performance Monitoring Showing Monitored Paths
through the Network
QT-200 DSL Test Head
QT-200 DSL Test Head
MGW Trunk
QT-200 DSL Test Head
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Customers