3-Level Integrated Hybrid Optical Network (3LIHON) to Meet Future QoS Requirements

Stol, Norvald; Savi, Michele; Raffaelli, Carla

doi:10.1109/glocom.2011.6134005

Cited by 20 publications

(12 citation statements)

References 13 publications

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“…The integrated hybrid node has been well investigated in the literature with proposed architectures from all-optical [14,15,19] to hybrid electronic-optical [13,18] and all-electronic [16]. The main difference of the IHON from the parallel hybrid optical network (PHON), as defined first in [12], is that while in the parallel hybrid the packet and circuit domains might share the same physical fiber but have different separate wavelength pools, in IHON the packet domain, i.e., SM, is able to use the physical wavelengths provisioned for the circuit domain, i.e., for GST.…”

Section: A Related Workmentioning

confidence: 99%

“…Integrated hybrid optical networks (IHONs) [12][13][14][15][16][17][18][19] merge the circuit and packet network in the same wavelength to enable (1) circuit quality transport of demanding services; (2) circuits with higher granularity than wavelengths, i.e., sub-wavelength switching; and (3) statistical multiplexing enabling the throughput efficiency of packet networks. Earlier IHON experiments have demonstrated how the timing is preserved on a single circuit class stream, referred to as guaranteed service transport (GST), while adding SM packet-switched traffic [16].…”

Section: Introductionmentioning

confidence: 99%

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Field-Trial Demonstration of Cost Efficient Sub-wavelength Service Through Integrated Packet/Circuit Hybrid Network [Invited]

Veisllari¹,

Bjornstad²,

Braute³

et al. 2015

J. Opt. Commun. Netw.

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Carriers are under constant pressure to meet the ever-increasing bandwidth demand while reducing cost per bit, enhancing network throughput, and offering a large variety of services. Hybrid packet and circuit network technologies are being widely investigated and considered as a solution for offering both the high network throughput of the packet domain and wavelength services, i.e., a low fixed latency and zero packet loss. To enable carriers to serve a higher number of customers requiring wavelength services, optical transport network (OTN)based sub-wavelength switching is adopted to support finer granularity with similar performance to full wavelength services. However, OTN is not able to perform statistical multiplexing and achieve the throughput efficiency of packet networks. In this work an integrated hybrid optical network field-trial is described to demonstrate the ability to both aggregate and transport sub-wavelength circuits, and offer high throughput efficiency by statistically multiplexing traffic on transport wavelengths. Results show the transport of sub-wavelength services with packet-delay variation limited to only 15 ns and 82.4% wavelength utilization using statistical multiplexing.

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Section: A Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Field-Trial Demonstration of Cost Efficient Sub-wavelength Service Through Integrated Packet/Circuit Hybrid Network [Invited]

Veisllari¹,

Bjornstad²,

Braute³

et al. 2015

J. Opt. Commun. Netw.

View full text Add to dashboard Cite

show abstract

“…On the other hand, an integrated hybrid optical network model assumes that the two data planes are merged and transmission channels are completely shared between circuit-based and statisticallymultiplexed packet flows. This approach offers a full integration of multiple networking technologies and allows to improve the utilization of bandwidth resources and to reduce both capital and operational expenditures, as demonstrated in existing proposals [2,3,4,5].…”

Section: Introductionmentioning

confidence: 97%

Design and test of a software defined hybrid network architecture

Cerroni

Leli

Raffaelli

2013

Proceedings of the First Edition Workshop on High Performance and Programmable Networking

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Circuit and packet switching convergence offers significant advantages in core networks to exploit their complementary characteristics in terms of flexibility, scalability and quality of service. This paper considers the possibility of unifying the two different types of transport using the Software Defined Networking (SDN) approach. The proposed architecture applies a modular design to the whole set of node functions, representing the key enabler for a fully programmable network implementation. This paper also proposes a possible extension to the basic concept of flow defined by the current OpenFlow standard to properly support a hybrid network. A set of experiments are performed to assess the main functionality and the performance of the hybrid node where packet and circuit switching are assumed to be configured through the OpenFlow protocol in a fully automated way.

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“…Extensive theoretical and experimental research has been carried out on IHON architectures, e.g. 3LiHON [1], HOS [2], ORION [3] and OpMiGua [4]. The traffic is divided in two main categories: circuit switched Guaranteed Service Transport (GST) with absolute priority and packet switched Statistically Multiplexed (SM) best effort traffic.…”

Section: Introductionmentioning

confidence: 99%

A rate-adaptive segmentation algorithm for integrated hybrid optical networks

Veisllari

Bjornstad

Stol

2012

Australasian Telecommunication Networks and Applications Conference (ATNAC) 2012

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Integrated hybrid optical networks (IHON) add statistically multiplexed (SM) packet traffic to increase the utilization of the wavelength channels dedicated to optical circuit switched traffic. SM packets are inserted in the variable sized free gaps in-between circuit switched packets. Some packets are too large for fitting in a specific gap, hence the utilization of the gaps decides the achievable throughput efficiency of the network. Segmenting SM packets, allowing also small gaps to be exploited, comes with the cost of adding extra processing and segmentation overhead. Hence, the number of segmented packets should therefore be minimized. In this paper we propose a novel rateadaptive segmentation scheme (RAS), increasing the gap utilization while minimizing the number of segmented packets. The algorithm dynamically adapts the SM packet length pattern to fill the fragmented bandwidth and increase the throughput. Simulation results show that the scheme heightens the utilization from 73% to 89%. Furthermore, we propose a bounded delay scheme that minimizes the delay and bounds the jitter by droppings old head-of-line packets reducing packet loss ratio by 3%.

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3-Level Integrated Hybrid Optical Network (3LIHON) to Meet Future QoS Requirements

Cited by 20 publications

References 13 publications

Field-Trial Demonstration of Cost Efficient Sub-wavelength Service Through Integrated Packet/Circuit Hybrid Network [Invited]

Field-Trial Demonstration of Cost Efficient Sub-wavelength Service Through Integrated Packet/Circuit Hybrid Network [Invited]

Design and test of a software defined hybrid network architecture

A rate-adaptive segmentation algorithm for integrated hybrid optical networks

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