Metraipolis › archive › dc_7f8bbde98656

A Wavelength Borrowing Architecture for Optical Data Center Networks - Extended Version — arXiv:2609.04874

Source: arXiv (en)
Original: https://arxiv.org/abs/2609.04874
License (as archived): CC0-1.0
Archived: 2026-10-16T23:02:37.922Z
SHA-256 of the archived text: 304834c685559f9903b3c424fa1a426652142eadab4fbdee7b46911528b4a5c6
Stable URL of this page: https://metraipolis.com/documento/dc_7f8bbde98656

How to cite

A Wavelength Borrowing Architecture for Optical Data Center Networks - Extended Version — arXiv:2609.04874 — arXiv (en), https://arxiv.org/abs/2609.04874 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_7f8bbde98656 (Metraipolis archive dc_7f8bbde98656, sha256 304834c685559f9903b3c424fa1a426652142eadab4fbdee7b46911528b4a5c6)

BibTeX

@misc{dc7f8bbde98656,
  title = {A Wavelength Borrowing Architecture for Optical Data Center Networks - Extended Version — arXiv:2609.04874},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2609.04874},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_7f8bbde98656; sha256 304834c685559f9903b3c424fa1a426652142eadab4fbdee7b46911528b4a5c6},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2609.04874. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

The growth of east-west traffic, along with the cost and power consumption of electronic switching, is motivating the integration of a low-power, high-rate, all-optical layer within the data center network. This paper presents a spine-leaf all-optical architecture in which the default wavelength configuration, one wavelength per source--destination leaf pair, can be reconfigured to accommodate unbalanced traffic demand: wavelengths that are unused or lightly loaded at one leaf are borrowed by another leaf with higher demand. This topology-engineering capability is combined with a traffic-engineering scheme, based on two-hop detouring, enabling the control of wavelength load while limiting the amount of detoured traffic. A key feature of the architecture is that its degree of wavelength reconfigurability is set by a single tunable parameter, the borrowing degree $B$, ranging from none to full; performance evaluation shows that near-optimal performance is achieved well below the maximum $B$, saving the complexity and cost of fully reconfigurable solutions. Furthermore, the optical fabric relies on mature, data-center-grade components, namely AWGs, AWGRs, colorless OXCs, and combiners, whose reconfiguration speed makes the architecture deployable at network tiers where traffic demand persists over seconds or longer, e.g., among groups of racks (pods). The architecture is also TDMA-transparent, a property that future work could exploit to refine the borrowing unit below a whole wavelength without changing the optical fabric.

Tema degli esploratori: calcolo e infrastrutture (retro-catalogo arXiv: annunci del 2026-09-07 in cs.NI).
Categorie arXiv: Networking and Internet Architecture (cs.NI).
Pagina del lavoro: https://arxiv.org/abs/2609.04874 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-16T22:42:33.909Z dalla pagina https://arxiv.org/catchup/cs.NI/2026-09-07?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).