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SLA TO QoS Mapping Networks
Sudeep Goyal (00D05013), Prof. Umesh Bellur (Thesis Guide), Prof. G. Sivakumar (Thesis
Co-guide)
Internet architecture is aimed at providing the differentiated level of services on same
infrastructure. This has lead to the advent of many network level technologies like
DiffServ, IntServ and MPLS. But, there exists a huge gap between service level agreements
and specifications at the application level and the network level parameters.Here,in this
report, we analyse different QoS architectures that people have world-wide designed to
solve this problem of mapping the application level specifications to network level spec-
ifications and parameters. We discuss different QoS specification languages like QML,
CQML, HQML etc. We discuss about MPLS as the growing technology of the future.
Here our effort intends to provide a mapping mechanism for MPLS networks that maps
the SLA parameters at the application layer to the network QoS parameters.
I . INTRODUCTION
A. Introduction
The Internet has grown rapidly in last decade. Its growth has both posed opportunities
and threats to many business activities. It has become a global channel of
communication to include all businesses. The internet is expected to become a medium of
communication that would provide a differentiated level of service on the same internet
infrastructure. Thus, this differentiated level of service would include data and voice
communications that should also be able to provide real and reliable network services as
well. In order to provide many services to the same infrastructure network, IETF has
proposed many QoS technologies like DiffServ, IntServ and MPLS.
Presently, there is huge gap between network lower-level specifications and the
application level service level require-ments. Application level QoS which are specificed
as SLAs (Service Level Agreements) are specified and usually dealt
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