Impact of GMPLS Control Message Loss

Komolafe, Olufemi; Sventek, J.

doi:10.1109/jlt.2008.920137

Cited by 15 publications

(9 citation statements)

References 22 publications

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“…The flooding protocol is the single most important factor that influences OSPF-TE's message exchange rate. As indicated in several studies, the contribution of OSPF-TE to total control plane scalability (in terms of message exchanges within the control network), can be reduced significantly by use of appropriate flooding reduction techniques [9]- [11]. Moreover, OSPF domains may even be divided into areas to further reduce control plane traffic.…”

Section: B Gmpls Control Planementioning

confidence: 99%

Isolation and resource efficiency of virtual optical networks

Leenheer

Buysse

Develder

et al. 2012

2012 International Conference on Computing, Networking and Communications (ICNC)

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Abstract-Virtualization of optical networking infrastructure is considered a fundamental technology in the future Internet. A key principle is that virtual networks are isolated to coexist on a shared physical substrate without interference. Although a very attractive proposition for virtual network operators and users, in this paper we demonstrate that realizing complete isolation by partitioning resources is wasteful. Therefore, we propose to group virtual network requests in clusters: within a cluster, bandwidth can be shared, whereas different cluster are properly isolated. Results indicate that intelligent isolation and design of virtual networks can lead to substantial savings of optical network resources compared to a fully isolated approach. Finally, we demonstrate the trade-off between network resource utilization and control plane scalability.

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Section: B Gmpls Control Planementioning

confidence: 99%

Isolation and resource efficiency of virtual optical networks

Leenheer

Buysse

Develder

et al. 2012

2012 International Conference on Computing, Networking and Communications (ICNC)

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“…The problem of supporting protection differentiation in optical networks has generally been addressed in terms of the physical signal quality and blocking probability [4], [5]. However, recent studies have utilized generalized multiprotocol label switching (GMPLS) standards to support the identification of the customer through the use of labels [6], [7]. The authors in [8] proposed a modified routing and wavelength assignment (RWA) scheme for differentiated survivability.…”

Section: Introductionmentioning

confidence: 99%

Star-Block Design in Two-Level Survivable Optical Networks

Yang

Chen

2011

IEEE/ACM Trans. Networking

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An efficient fault restoration framework is proposed for accomplishing loopback recovery in optical networks. The proposed -cycle-based framework achieves both a minimal spare capacity requirement and a rapid restoration time. In the proposed approach, an algorithm designated as Star-Block is used to simplify the original topology to a 2-connected graph and to partition the graph into multiple blocks, where each block contains a center node and the minimum number of neighboring nodes that collectively form a complete cycle. The simplified graph is then restored to the original topology using conventional graph rules. The Block Selection algorithm is then used to assign the edges belonging to multiple blocks to an appropriate block for fault recovery purposes. Within each block, the working flows are restored in real-time via local -cycles on the on-cycle and spoke fibers. The performance of the proposed protection framework is evaluated numerically in terms of the spare capacity to working capacity ratio and the length of the restoration path. The framework has a better spare capacity efficiency than existing loopback recovery schemes or the conventional -cycles approach. In addition, the Star-Block decomposition algorithm shortens the average length of the restoration path and therefore reduces the restoration time. Finally, the protection scheme not only provides a differentiated recovery service for traffic with different QoS requirements in the event of single-link failures within a single block, but also supports multiple-fault restoration for the case in which multiple single-link failures occur simultaneously.

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“…In addition, [4] and [5] concluded that the most severe GMPLS protocol disruptions due to message losses (random losses [4] or connectivity outages due to link failures [5]) were found in RSVP-TE [1].…”

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confidence: 99%

“…Comparing the approaches in [4] and [5], it seems more reasonable to have bursty message losses due to link connectivity outages, rather than random losses due to, e.g., network congestion. In fact, the load in the GMPLS control plane (i.e., RSVP-TE+OSPF-TE+LMP messages [1]) should not be very large under normal network operation (connection arrivals in the seconds' or minutes' time scales).…”

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confidence: 99%

An analytical model for GMPLS control plane resilience quantification

et al. 2009

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Abstract-This paper concentrates on the resilience of the Generalized Multi-Protocol Label Switching (GMPLS) enabled control plane. To this end, the problem of control plane resilience in GMPLS-controlled networks is firstly stated and previous work on the topic reviewed. Next, analytical formulae to quantify the resilience of generic meshed control plane topologies are derived. The resulting model is validated by simulation results on several reference network scenarios.

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Impact of GMPLS Control Message Loss

Cited by 15 publications

References 22 publications

Isolation and resource efficiency of virtual optical networks

Isolation and resource efficiency of virtual optical networks

Star-Block Design in Two-Level Survivable Optical Networks

An analytical model for GMPLS control plane resilience quantification

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