Multipath protections and dynamic link recovery in softwarized 5G networks using segment routing
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Date
2020-03
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Abstract
Future softwarized 5G networks have to be robust
enough so as to ensure high network reliability and services
availability. 5G network architecture should make sure that any
failed parts in the network are detected, restored and recovered
within a permissible period of time and at the lowest achievable
cost. In this paper, we propose a Multipath Protection and
Link-Failure free MPTCP/SR-based SDN/NFV architecture that
increases survivability, resilience, availability of services in 5G net-
works. We present our system model and a multiPath protection
and dynamic Link- Failure free algorithm called ”PathReLief”
that greatly reduces the failure recovery time and avoids link
congestion in MPTCP/SR SDN/NFV 5G networks. To demonstrate
the effectiveness of our proposal, we compare the performance of
the proposed algorithm and the conventional topology discovery
mechanisms for link/node failures in POX and OpenDaylight con-
trollers. Preliminary results show that, our approach outperforms
others used in the commonly used controllers (i.e., POX and
OpenDaylight), in terms of reduced failure recovery time and
localization time.
Description
Keywords
SDN, NFV, Segment Routing (SR), MultiPath TCP (MPTCP), 5G, Link recovery, Path protections