Coordinateci computation of multi-layer paths via inter-layer PCE communication: Standards, interoperability and deployment

Chamania, Mohit; Dios, Óscar González de; López, Vı́ctor; Cuaresma, Marta; Drogon, Marek; Jukan, Admela; Masip-Bruin, X.; Yannuzzi, M.

doi:10.1109/icc.2012.6364957

Cited by 7 publications

(8 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some works have then faced the problem of designing a multi-layer orchestrator [18] [19] for application-centric networking [7] [20]. Papers [18] [19] propose two architectural solutions, i.e., PCE and ABNO, for path computation, resource provisioning and orchestration in multi-layer networks. Even though these works move a significant step forward concerning multi-layer orchestration, they do not focus on application awareness.…”

Section: A Application-centric Networking and Orchestrationmentioning

confidence: 99%

A Dynamic Multi-Layer Resource Allocation and Optimization Framework in Application-Centric Networks

Rožić

Savi

Matrakidis

et al. 2018

J. Lightwave Technol.

View full text Add to dashboard Cite

In an SDN-based network, service requests can be accommodated according to network application requirements. We devise a framework where such requirements drive IP and optical network resource allocation, dynamic optimization, and instantiation through an SDN orchestrator. The framework aims to balance the often-conflicting goals such as energy savings and resource allocation speed, while ensuring that the orchestrator can accommodate incoming service requests without interrupting the running services. We show the functionality of the framework with a simulation on a real network topology and realistic input traffic. Index Terms-(060.4256) Networks, network optimization, (060.4251) Networks, assignment and routing algorithms I. INTRODUCTION pplications running over the Internet today, such as autonomous driving, remote surgery, 5G backhauling, and data migration, demand more than just a bandwidth pipe over a connected network. The new service requirements are specific and complex, so merely providing a sufficiently capacitated optical channel will not suffice. Moreover, bundling the traffic from diverse applications does have advantages of cost, but the resulting service may be inadequate, the usage of network resources may be inefficient, or the network operator may miss an opportunity to generate revenue from higher-class services. Recently, Software-Defined Networking (SDN) enables service providers to use the existing IP and optical network resources more intelligently and efficiently. This advance allows for assigning bandwidth where and when needed, and Manuscript received July 12 th , 2018. The research leading to these results has received funding from the European Commission within the H2020 Research and Innovation programme, ACINO project, Grant Number 645127, www.acino.eu.

show abstract

Section: A Application-centric Networking and Orchestrationmentioning

confidence: 99%

A Dynamic Multi-Layer Resource Allocation and Optimization Framework in Application-Centric Networks

Rožić

Savi

Matrakidis

et al. 2018

J. Lightwave Technol.

View full text Add to dashboard Cite

show abstract

“…Fortunately, the adoption of a centralized routing architecture such as the PCE facilitates an agile (recovery) path computation with low complexity [81]. The advantages provided by PCE schemes fueled significant efforts related to standardize the integration of PCE schemes in current CGNs [82], [83], as well as several scientific studies dealing with PCE utilization in multi-layer CGNs [84], [85].…”

Section: Correlation Of Nsimentioning

confidence: 99%

“…[87], [91], [92], [93], [94] PCE [95], [96], [97], [85], [98], [99] ILSA and Service-Oriented schemes [100], [101], [42], [102], [103] is worth mentioning that recovery schemes for hybrid network must be able to solve complex failure scenarios.…”

Section: Sdnmentioning

confidence: 99%

Managing resilience in carrier grade networks: Survey, open issues and trends

Ramírez

Masip-Bruin

Marín‐Tordera

et al. 2015

Computer Communications

View full text Add to dashboard Cite

Abstract-IP/MPLS and Optical technologies are the foundations of current Carrier-Grade Networks (CGNs), due to both the flexibility of IP/MPLS to provide services with distinct requirements and the high transport capacity offered by new Optical technologies, such as Elastic Optical Networks (EONs). However, despite of the widespread adoption of these two technologies, interoperability issues still impact on key network features, in particular on resilience capabilities. Resilience is gaining momentum in recent years due to the advent of new CGN scenarios, such as Data Center Networks (DCNs), where a link or a node failure might lead to a substantial traffic loss. We consider that any potential contribution on the resilience arena, must be built on top of a solid knowledge of available proposals emphasizing most appealing research trends and the limitations affecting the management of resilience in CGNs. Aligned to this scenario, the main goals of this article are: (1) compile distinct approaches for managing resilience; (2) describe in a comprehensive manner, the challenges faced by CGN operators in order to manage resilience; (3) show why current solutions for managing resilience do not completely address the interoperability issues present in multilayer CGNs with multi-vendor settings, and; (4) provide insights for future trends.

show abstract

“…To do so, a multi-layer control plane is defined [1], which, on demand, can send the traffic either over the IP layer or the optical layer (via an existing light-path or creating a new one) [2]. There is an important on-going work on the definition of such multi-layer control plane and the interaction between the layers and other elements in the network, such as the Network Management System (NMS) or the Virtual Network Topology Manager (VNTM) [3].…”

Section: Introductionmentioning

confidence: 99%

Multi-layer restoration in hierarchical IP/MPLS over WSON networks

Muñoz

López

Dios

et al. 2012

2012 17th European Conference on Networks and Optical Communications

Self Cite

View full text Add to dashboard Cite

Network operators are migrating to a multi-layer architecture with IP/MPLS equipment and optical nodes. Thanks to the advent of reconfigurable optical equipment and a multilayer control plane, current 1+1 node protection at the IP layer in each location is not required anymore. This work studies the network availability in a national network with current 1+1 protection. To do so, an analytical expression is derived and validated via simulation in a typical operator scenario. With these results, this work concludes that it is possible to reduce the network equipment while maintaining the service availability currently offered to the clients.

show abstract

Coordinateci computation of multi-layer paths via inter-layer PCE communication: Standards, interoperability and deployment

Cited by 7 publications

References 6 publications

A Dynamic Multi-Layer Resource Allocation and Optimization Framework in Application-Centric Networks

A Dynamic Multi-Layer Resource Allocation and Optimization Framework in Application-Centric Networks

Managing resilience in carrier grade networks: Survey, open issues and trends

Multi-layer restoration in hierarchical IP/MPLS over WSON networks

Contact Info

Product

Resources

About