Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Reliable and Cost Efficient Passive Optical Interconnects for Data Centers
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab).
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab).ORCID iD: 0000-0002-5318-2050
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab).ORCID iD: 0000-0001-6704-6554
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab).
2015 (English)In: IEEE Communications Letters, ISSN 1089-7798, E-ISSN 1558-2558, Vol. 19, no 11, 1913-1916 p.Article in journal, Letter (Refereed) Published
Abstract [en]

To address the sustainability, scalability, and reliability problems that data centers are currently facing, we propose three passive optical interconnect (POI) architectures on top of the rack. The evaluation results show that all three architectures offer high reliability performance (connection availability for intra-rack interconnections higher than 99.999%) in a cost-efficient way.

Place, publisher, year, edition, pages
IEEE Communications Society, 2015. Vol. 19, no 11, 1913-1916 p.
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-184493DOI: 10.1109/LCOMM.2015.2478474ISI: 000365028900014Scopus ID: 2-s2.0-84947602238OAI: oai:DiVA.org:kth-184493DiVA: diva2:916197
Note

QC 20160525

Available from: 2016-04-01 Created: 2016-04-01 Last updated: 2017-08-15Bibliographically approved
In thesis
1. Passive Optical Top-of-Rack Interconnect for Data Center Networks
Open this publication in new window or tab >>Passive Optical Top-of-Rack Interconnect for Data Center Networks
2017 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Optical networks offering ultra-high capacity and low energy consumption per bit are considered as a good option to handle the rapidly growing traffic volume inside data center (DCs). However, most of the optical interconnect architectures proposed for DCs so far are mainly focused on the aggregation/core tiers of the data center networks (DCNs), while relying on the conventional top-of-rack (ToR) electronic packet switches (EPS) in the access tier. A large number of ToR switches in the current DCNs brings serious scalability limitations due to high cost and power consumption. Thus, it is important to investigate and evaluate new optical interconnects tailored for the access tier of the DCNs.

We propose and evaluate a passive optical ToR interconnect (POTORI) architecture for the access tier. The data plane of the POTORI consists mainly of passive components to interconnect the servers within the rack as well as the interfaces toward the aggregation/core tiers. Using the passive components makes it possible to significantly reduce power consumption while achieving high reliability in a cost-efficient way.

Meanwhile, our proposed POTORI’s control plane is based on a centralized rack controller, which is responsible for coordinating the communications among the servers in the rack. It can be reconfigured by software-defined networking (SDN) operation. A cycle-based medium access control (MAC) protocol and a dynamic bandwidth allocation (DBA) algorithm are designed for the POTORI to efficiently manage the exchange of control messages and the data transmission inside the rack.

Simulation results show that under realistic DC traffic scenarios, the POTORI with the proposed DBA algorithm is able to achieve an average packet delay below 10 μs with the use of fast tunable optical transceivers. Moreover, we further quantify the impact of different network configuration parameters on the average packet delay. 

Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2017. 31 p.
Keyword
Optical communications, data center interconnects, MAC protocol, dynamic bandwidth allocation.
National Category
Engineering and Technology Communication Systems
Research subject
Information and Communication Technology
Identifiers
urn:nbn:se:kth:diva-206421 (URN)978-91-7729-387-3 (ISBN)
Presentation
2017-06-12, Ka-Sal C (Sal Sven-Olof Öhrvik), Electrum, Kistagången 16, Kista, Stockholm, 10:00 (English)
Opponent
Supervisors
Note

QC 20170503

Available from: 2017-05-09 Created: 2017-05-03 Last updated: 2017-08-15Bibliographically approved

Open Access in DiVA

fulltext(672 kB)51 downloads
File information
File name FULLTEXT01.pdfFile size 672 kBChecksum SHA-512
7388ee8f4363291e2ff8f2fa62004a59e241f6d4b1ff73ddfa0f9d31fc8a484c1f4a11a998f19c9b72554ba88eb38c0f02414e8a214264cca90eed169e4ed1ba
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopusIEEEXplore

Search in DiVA

By author/editor
Cheng, YuxinFiorani, MatteoWosinska, LenaChen, Jiajia
By organisation
Optical Network Laboratory (ON Lab)
In the same journal
IEEE Communications Letters
Communication Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 51 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 56 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf