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Exploring the benefits of carbon-aware routing

Abstract:
Carbon emissions associated with fixed networks can be significant. However, accounting for these emissions is hard, requires changes to deployed equipment, and has contentious benefits. This work sheds light on the benefits of carbon aware networks, by exploring a set of potential carbon-related metrics and their use to define link-cost in carbon-aware link-state routing algorithms. Using realistic network topologies, traffic patterns and grid carbon intensity, we identify useful metrics and limitations to carbon emissions reduction. Consequently, a new heuristic carbon-aware traffic engineering algorithm, CATE, is proposed. CATE takes advantage of carbon intensity and routers’ dynamic power consumption, combined with ports power down, to minimize carbon emissions. Our results show that there is no silver bullet to significant carbon reductions, yet there are promising directions without changes to existing routers’ hardware.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1145/3629165

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More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
Publisher:
Association for Computing Machinery
Journal:
Proceedings of the ACM on Networking More from this journal
Volume:
1
Issue:
CoNEXT3
Article number:
20
Publication date:
2023-11-28
Acceptance date:
2023-09-09
Event title:
19th International Conference on emerging Networking EXperiments and Technologies (CoNEXT 2023)
Event location:
Paris, France
Event website:
https://conferences.sigcomm.org/co-next/2023/#!/home
Event start date:
2023-12-05
Event end date:
2023-12-08
DOI:
EISSN:
2834-5509
Language:
English
Keywords:
Pubs id:
1552262
Local pid:
pubs:1552262
Deposit date:
2023-10-23

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