QoS Path Monitoring for Multicast Network
Ehab Al-Shaer
Multimedia Networking Research Laboratory
School of Computer Science, Telecommunications and Information Systems DePaul University Chicago, IL 60604
Email: ehab_AT_cs.depaul.edu
Yongning Tang
Multimedia Networking Research Laboratory
School of Computer Science, Telecommunications and Information Systems DePaul University Chicago, IL 60604
Email: ytang_AT_cs.depaul.edu
Abstract
New network monitoring tools are necessary for supporting the
deployment and the operations of multicast services on the Internet.
Due to peculiar characteristics of multicast routing (e.g., multicast forwarding trees) and the potential of message implosion problem, traditional network management tools are not sufficient for monitoring the quality of multicast delivery such as packet loss delay and jitter. Current multicast monitoring tools are either not scalable, limited in their functionality or difficult to deploy in enterprise networks. In this paper, we present a new monitoring framework (called SMRM, SNMP-based Multicast Reachability Monitoring) for multicast reachability based on SNMP. The SMRM framework is used for actively monitoring the health and the quality of service of multicast networks. SMRM provide a scalable real-time feedback on the packet loss, delay and jitter of any selected segments of multicast delivery trees. In addition, NOC (Network Operations Center) personnel can easily understand, deploy and extend the SMRM framework
in order to detect and isolate reachability and performance problems in multicast
sessions. SMRM combines both distributed monitoring and centralized control, which
offers scalability and simplicity. The integration of SMRM into SNMP is motivated
by the wide distribution of SNMP agents in networks today, which significantly
facilitates the deployment of SMRM in existing networks.
Keywords: QoS Management, Monitoring, Multicast Reachability, SNMP, Network Testing, Fault Management, Performance Management.
JNSM: Vol. 10, No. 3, 2002
QoS Path Monitoring for Multicast Network [Vol. 10, No. 3, 2002]
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