Publication: QoS-aware flow monitoring and event creation in heterogeneous MPLS-based Wireless Mesh Networks supporting unidirectional links
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2009-12-15
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IEEE
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Abstract
Monitoring is a crucial task in QoS-aware
networks since it provides statistics to verify that the
network performs within the committed QoS parameters.
It is especially important in a resource-constrained Carriergrade
Wireless Mesh Access Network (CG-WMAN) in order
to monitor a node’s neighborhood, established links as well
as MPLS QoS-traffic flows, so-called Label-Switched Paths
(LSPs). In this paper, we present a monitoring architecture
for LSPs in a heterogeneous CG-WMAN, where configurable
Rating Agents perform adaptive per-LSP event creation
based on monitoring statistics, QoS-requirements and overall
network state. Keeping the footprint of the monitoring
mechanism at a minimum, our approach is based on quasipassive
monitoring minimizing the transmission of extra
frames. To support unidirectional links as well as 1-to-N
multicast trees, a receiving side feedback-free mechanism
is proposed which can be extended with transmitting side
functionality. Initial results obtained in our testbed show that
we can reliably detect under-performing links according to
the QoS requirements of the payload.
Description
Proceedings of: IEEE 9th Malaysia International Conference on Communications (MICC 2009), 15-17 December 2009, Kuala Lumpur, Malaysia
Keywords
Heterogeneous wireless mesh, QoS, Monitoring, Unidirectional links
Bibliographic citation
IEEE 9th Malaysia International Conference on Communications (MICC), (15-17 December 2009), 680-685