PROTECTORATION: a fast and efficient multiple-failure recovery technique for resilient packet ring using dark fiber

Maier, Martin; Herzog, Martin; Scheutzow, Michael; Reisslein, Martin

doi:10.1109/jlt.2005.856165

Cited by 16 publications

(13 citation statements)

References 46 publications

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“…Note that the σ(k, l) defined above correspond to the respective σ(i, j) in [52]. Further, we can introduce and calculate the analogous probabilities to p k,l (e) and p k,l (m, n) in [52].…”

Section: Capacity Of the Ring/psc Star Subnetworkmentioning

confidence: 99%

Capacity and Delay Analysis of Next-Generation Passive Optical Networks (NG-PONs)

Аурзада

Scheutzow

Reisslein

et al. 2011

IEEE Trans. Commun.

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Building on the Ethernet Passive Optical Network (EPON) and Gigabit PON (GPON) standards, Next-Generation (NG) PONs (i) provide increased data rates, split ratios, wavelengths counts, and fiber lengths, as well as (ii) allow for all-optical integration of access and metro networks. In this paper we provide a comprehensive probabilistic analysis of the capacity (maximum mean packet throughput) and packet delay of subnetworks that can be used to form NG-PONs. Our analysis can cover a wide range of NG-PONs through taking the minimum capacity of the subnetworks making up the NG-PON and weighing the packet delays of the subnetworks. Our numerical and simulation results indicate that our analysis quite accurately characterizes the throughput-delay performance of EPON/GPON tree networks, including networks upgraded with higher data rates and wavelength counts. Our analysis also characterizes the trade-offs and bottlenecks when integrating EPON/GPON tree networks across a metro area with a ring, a Passive Star Coupler (PSC), or an Arrayed Waveguide Grating (AWG) for uniform and nonuniform traffic. To the best of our knowledge, the presented analysis is the first to consider multiple PONs interconnected via a metro network. PON standards IEEE 802.3ah Ethernet PON (EPON) and ITU-T G.984 Gigabit PON (GPON) consist both of a single upstream wavelength channel and a separate single downstream wavelength channel, whereby both channels are operated with time division multiplexing (TDM). EPON and GPON are expected to coexist for the foreseeable future as they evolve into Next-Generation PONs (NG-PONs) [2], [3], [4]. NG-PONs are mainly envisioned to (i) achieve higher performance parameters, e.g., higher bandwidth per subscriber, increased split ratio, and extended maximum reach, than current EPON/GPON architectures [5], and (ii) broaden EPON/GPON functionalities to include, for instance, the consolidation of optical access, metro, and backhaul networks, the support of topologies other than conventional tree structures, and protection [6]. Throughout, network operators are seeking NG-PON solutions that can transparently coexist

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Section: Capacity Of the Ring/psc Star Subnetworkmentioning

confidence: 99%

Capacity and Delay Analysis of Next-Generation Passive Optical Networks (NG-PONs)

Аурзада

Scheutzow

Reisslein

et al. 2011

IEEE Trans. Commun.

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“…Thus, survivability in metro core ring networks is crucial. Recently, we have shown in [8] that by interconnecting a subset of the ring nodes with a single-hop star WDM network, the ring network is divided into separate domains, each being fully recoverable from a single link or node failure without losing full network connectivity. The resultant hybrid ring-star network provides fast and efficient recovery against multiple failures, as opposed to conventional WDM rings which can survive only a single failure.…”

Section: A Motivationmentioning

confidence: 99%

“…i used |l dest., all in RS seg., left border gap = k hops, right border gap = m hops). (8) With this definition we have…”

Section: ) Segment Utilization Probability D I Due To Destination Trmentioning

confidence: 99%

“…However, this evolutionary approach allows nodes to be WDM upgraded and attached to the star WDM subnetwork one at a time, as opposed to deploying WDM on the ring which affects each network node. Furthermore, the additional star subnetwork enables the fast and efficient recovery from multiple link and node failures in optical ring networks without losing full network connectivity [8]. In addition, the resultant hybrid optical ringstar network is well suited to efficiently sustain unpredictable changes and shifts in traffic load [9].…”

Section: Introductionmentioning

confidence: 99%

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WDM star subnetwork upgrade of optical ring networks for maximum spatial reuse under multicast traffic

Scheutzow

Seeling

Maier

et al. 2007

IEEE J. Select. Areas Commun.

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Abstract-We examine a recently proposed multichannel upgrade of optical single-channel ring networks where a subset of ring nodes is WDM upgraded and interconnected by a singlehop star WDM subnetwork in a pay-as-you-grow fashion. This evolutionary approach not only allows for fast and efficient multiple-failure recovery but also is well suited to efficiently sustain unpredictable changes and shifts in traffic loads. In this paper, we analytically investigate the maximum achievable capacity of the WDM star subnetwork upgrade of optical singlechannel networks under a variety of unicast and multicast traffic scenarios and compare it to that of conventional WDM ring networks. In our analysis, we take priority of ring in-transit traffic, destination stripping, and maximum spatial reuse into account. Our findings show that under multicast traffic the configuration of the star subnetwork plays an important role in order to achieve high multicast capacity. Furthermore, under multicast traffic WDM upgrading and interconnecting a subset of ring nodes might be sufficient to achieve a larger multicast capacity than in WDM rings.

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“…The wrapping and steering protection techniques of RPR networks were evaluated with respect to service disruption, packet loss, and packet reordering in [2] [3]. In [4], With the help of dark fibers, RPR network works normally even when multi-links failure occurs, just like that in the RINGOSTAR network (A new network model which is described elaborately in [5]. It combines star networks to ring networks).…”

Section: Introductionmentioning

confidence: 99%

Study of Steering Protection Switch in Case of Unidirectional Link Failure in RPR

Yan

Jin

Zeng

2006

2006 10th IEEE Singapore International Conference on Communication Systems

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According to IEEE 802.17 Standards, the TP frames which transfer the failure information can only indicate the span failure instead of each link failure. It leads Resilient Packet Ring (RPR) treats all link failures as bidirectional. That means if one ringlet fails, the other in the same span will also be disabled. This operation will not impact the performance of wrapping protection switch for its intrinsic protection mechanism. But it will deteriorate the performance of steering protection switch in case of unidirectional link failure. In our paper, an improved steering protection switch scheme is proposed to overcome this shortcoming. It utilizes three reserved bits in extendedControl field to transfer more failure information in TP frame. With the help of the information, a special routing table defined in the proposed scheme for transmission is built and maintained at each station. By using the routing table each station can utilize the unfailed link to choose optimal transmit path. Our analysis shows this will save about 17% of the additional consumed link bandwidth than the original steering protection in case of unidirectional link failure. By analysis and simulation we show that the proposed steering protection switch can significantly increase the throughput of the network, lighten the congestion and decrease the traffic delay when unidirectional link failure occurs.

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PROTECTORATION: a fast and efficient multiple-failure recovery technique for resilient packet ring using dark fiber

Cited by 16 publications

References 46 publications

Capacity and Delay Analysis of Next-Generation Passive Optical Networks (NG-PONs)

Capacity and Delay Analysis of Next-Generation Passive Optical Networks (NG-PONs)

WDM star subnetwork upgrade of optical ring networks for maximum spatial reuse under multicast traffic

Study of Steering Protection Switch in Case of Unidirectional Link Failure in RPR

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