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Software defined distributed cable networks: design and use cases
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Date
2023-01-25
Authors
Naithani, Sudhanshu
Journal Title
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Publisher
University College Cork
Published Version
Abstract
Cable networks have continuously evolved to enable new services and improve
infrastructure capabilities. Cable networks have recently witnessed a shift
from a centralized architecture to a distributed one to remain competitive by
supporting higher data rates. This shift complicates the management and
configuration of distributed network nodes in Distributed Access Architecture
(DAA). Hence, the development of new solutions to overcome this challenge
evolves as a crucial need for the success and economic deployment of DAA. In
the meantime, Software Defined Networking (SDN) technology evolved as a
novel networking paradigm that facilitates designing dynamic, cost-effective,
agile, centrally manageable, and programmable network architectures. SDN
segregates the data layer and control layer to enable the deployment of
centrally optimized operation of distributed network nodes.
This thesis focuses on developing a prototype for SDN-enabled DAA Cable
Networks. Specifically, an SDN agent was integrated with a legacy DAA remote
node to facilitate its communication with any SDN controller. Such integration
enables network applications deployed on top of the SDN controller to define
the forwarding behavior of these remote nodes. To illustrate this, two use
cases, namely Load Balancing and Failure Management, were deployed in the
Ryu controller. We validated the operation of these applications using a hybrid
setup that includes one physical/industrial remote DAA node with the rest of
the network emulated using the Mininet emulator. Additionally, we evaluate
the performance of the proposed load balancing and compare it to the no-load
balancing case using the web and video traffic. It’s clearly shown that load
balancing shows up to 6.4% of a performance improvement for video bitrate
without significantly impacting the web traffic.
The developed prototype could act as a precursor for designing and deploying
different use cases and the widespread adoption of SDN-based DAA networks.
Description
Keywords
Distributed Access Architecture (DAA) , SDN (Software-Defined Networking) , RMD (Remote Mac-Phy Device) , Mininet , Cable networks , Load-balancing , Failure management
Citation
Naithani, S. 2023. Software defined distributed cable networks: design and use cases. MSc Thesis, University College Cork.