Extensions to the Path Computation Element Communication Protocol (PCEP) for Point-to-Multipoint Traffic Engineering Label Switched Paths

King, Daniel; Zhao, Quintin

doi:10.17487/rfc8306

Cited by 8 publications

(2 citation statements)

References 9 publications

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“…To this end, we propose extending the Point-to-MultiPoint (P2MP) END-POINT object defined in [39] with a new leaf type to select one-of-many destinations.…”

Section: M2c-prov Workflowmentioning

confidence: 99%

ABNO-driven content distribution in the telecom cloud

Gifre

Tornatore

Contreras

et al. 2017

Optical Switching and Networking

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Abstract-As current sustained traffic growth is expected to strain capacity of today's metro network, novel content distribution architectures where contents are placed closer to the users are being investigated. In that regard, telecom operators can deploy datacenters (DCs) in metro areas, thus reducing the impact of the traffic going from users to DCs. However, effective solutions to distribute contents to those metro DCs and to synchronize contents among them need to be investigated. In this paper, a hierarchical content distribution architecture for the telecom cloud is investigated: core DCs placed in geographically distributed locations, are interconnected through permanent "per content provider" (CP) virtual network topology (CP-VNT); additionally, metro DCs are placed close to users, and need also to be interconnected with the core DCs. CP's data is replicated in the core DCs through the CP-VNT, while metro-to-core (M2C) anycast connections are established periodically for metro DCs to synchronize contents. Since failures in the interconnection network might disconnect the CP-VNTs, in this paper recovery mechanisms are proposed to reconnect topologies and anycast connections. Topology creation, anycast provisioning and recovery problems are first formally stated and modelled as Integer Linear Programs (ILP). Solving these models, however, becomes impractical for realsized scenarios, so heuristic algorithms are also proposed. Exhaustive simulation results show that the investigated architecture provides significant improvements in both supported traffic and restorability compared to the case of a single core DC. Workflows to implement the algorithms within the Applications-based Network Operations (ABNO) architecture and extensions for PCEP are proposed. Finally, the architecture is experimentally validated in our ABNObased iONE test-bed.Keywords: Datacenter interconnection, Optical networks, Content distribution. INTRODUCTIONCloud-based contents are experiencing an exponential growth in users and data volume. In [1], Cisco forecast a yearly global growth of 23% in datacenter (DC)-to-user traffic, 29% in DC-to-DC traffic, and 22% in the intra-DC traffic. Likewise, Alcatel-Lucent highlights that metro traffic will increase 560% by 2017 mainly driven by IP video and cloud traffic [2], growing two times faster than core network traffic. They conclude that placing contents in DCs closer to users can result in a 41% bandwidth reduction in the metro networks. The resulting distributed DC architecture should come together with the extension of the core network functionalities towards the metro, as proposed in [3].Robust telecom infrastructures are needed to minimize the impact of failures on the services [4]; this is especially relevant in the case of video distribution. In fact, prolonged service outages and disruptions have negatively impacted the confidence of important companies toward cloud environments. Telecom operators are in a vantage position to capitalize on highly-reliable cloud services since they o...

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“…To this end, we propose extending the Point-to-MultiPoint (P2MP) END-POINT object defined in [39] with a new leaf type to select one-of-many destinations.…”

Section: M2c-prov Workflowmentioning

confidence: 99%

ABNO-driven content distribution in the telecom cloud

Gifre

Tornatore

Contreras

et al. 2017

Optical Switching and Networking

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“…While MPLS provides flexibility in packet switching, but the problems persist when link the multicast tree layer 3 with P2M LSP layer 2 as well as the integration of QoS for resources reservation in MPLS multicast. The multicast routing protocols over MPLS recently [5], [6], [7] are in place to try to overcome these problems. The paper is divided into four sections: section 1 introduces the MPLS multicast, section 2 presents the related multicast algorithms, section 3 introduces the proposed algorithm, section 4 is experiment and evaluation, part 5 is conclusion and future development.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth Guaranteed Multicast Routing Algorithm

Hung¹,

Thao²,

Thanh³

2015

IJCNC

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Computer network is becoming more popular and common, the need to use the broadband connection services (e-learning-online training, video conferencing-online conference, IPTV-digital TV ...) of organizations and individuals is increasing. Multicast is an effective mechanism for the transmission of information and data to many recipients simultaneously. Multicast is a routing problem from a source node to a receiver node set, also known as the routing from one point to multipoint. The advances in technology and multimedia applications emerge quickly has provided great motivation for the application of new realtime multi-point. Many multi-point applications will not function properly if the QoS (quality of service) can not be guaranteed. Therefore, multi-point algorithms must be able to meet the QoS constraints (cost, reliability, bandwidth, jitter, delay...). The objective of multicast routing algorithms guarantee QoS is to provide routing algorithms have the ability to recognize the tree to satisfy the maximum of traffic streams with QoS requirements. Most multicast algorithms on MPLS (MultiProtocol Label Switching) considered the unique QoS constraint as bandwidth. The other QoS constraints can be converted into bandwidth efficiency. Starting from this reality, this paper research multicast routing algorithms guarantee bandwidth and propose new algorithm compares with existing ones.

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