**6. Implementation and results**

The implementation encompasses three fundamental components:


#### **6.1 Trial infrastructure in SLA verification**

The trial architecture exposes the function of each component.

The test bed is composed of (Figure 13):

The proposed functional architecture supports three communication channels between


The architecture of SLM& M consists of two layers: Assurance and Monitoring, by analogy with the previous architecture (distributed). The Monitoring layer is distributed and

New processes must be integrated in a centralized way; a distributed integration can overload collection agents in routers and. For example in a router memory is crucial,; collection agents and processes DRC & P and RPM are reasonable for just performance collection and data local treatment. However, the addition of another process could

The Resource Trouble Management process (RTM) catches alarms that reflect a degradation of service resulting from a physical or logical related to equipment; this process then tries to

The WS-synchronization process is located in the same server as WS-Resource, so that this server can synchronize incoming events and data collection, and decide either to perform a normal SLA verification, or to report a violation. Also, the Resource Provisioning process is responsible for making resource reservations with respect to solution recommendations provided by WS-Service. WS-Service adds to its repertoire Service Problem Management

The interaction between WS components of SLM&M is through SOAP/HTTP, whereas the interaction between Monitoring layer of SLM &M and IMS layers uses Java-based client / server communication, with a spare possibility of using XML/RPC (Mi-Jung et al., 2004)



contains only two main processes of collection and processing of information.

overload the router that needs its capacities for traffic conditioning and processing.

make a preliminary correction of the service and notifies WS-Service.

between the (Resource, IMS ASs) and WS-Resource modules.

The implementation encompasses three fundamental components:


different modules:

(SPM) processes.

**6. Implementation and results** 

server for video streaming VoD. - The QoS management: PCEF and PCRF.

**6.1 Trial infrastructure in SLA verification** 

The test bed is composed of (Figure 13):


The trial architecture exposes the function of each component.

in case of SLA violation.

**5.4 Correction architecture** 


Fig. 13. Centralized trial infrastructure.
