Cost-Effective Topology Design for HSR Resilient Mesh Networks

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High-availability seamless redundancy (HSR) protocol provides a zero failover time protection applicable to any Ethernet topology. HSR is also capable of tolerating multiple simultaneous failures, which further promotes the application of packet-based Ethernet protection. Deploying HSR in mesh networks may incur a significant unnecessary cost if not designed carefully. This paper addresses the problem of minimizing the cost of HSR mesh networks given a network availability constraint. We first develop an enumeration-based method to find the optimal design. However, due to the NP-hard complexity of the problem, this is limited to only small networks. Hence, a novel two-step heuristic algorithm is proposed. The algorithm first searches a design of an initial mesh topology compliant with HSR survivability conditions, and then an evolution process takes place to find a modification of the initial topology that satisfies the required availability. The simulation results show that our heuristic algorithm achieves a comparable performance close to optimal while being computationally scalable.
Publisher
OPTICAL SOC AMER
Issue Date
2015-01
Language
English
Article Type
Article
Keywords

OPTICAL TRANSPORT NETWORKS; WDM NETWORKS; ETHERNET; PROTECTION

Citation

JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING, v.7, no.1

ISSN
1943-0620
DOI
10.1364/JOCN.7.000008
URI
http://hdl.handle.net/10203/201027
Appears in Collection
EE-Journal Papers(저널논문)
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