CHISEL: An optical slice of the wide-area network

on YouTube ↗18m

" summary

CHISEL dynamically carves optical slices across a cloud WAN, implemented as a MILP-based allocator that maps slice requests to contiguous spectrum and modulation formats; an empirical study finds 75% of optical spectrum on 75% of fiber spans unused. The system provisions hundreds of terabit-scale slices, provisioning in <30s within 2% of optimal, reduces hardware conversions and uses 3.3X fewer router ports, and programs commercial and ISP gear with no disruption and 10X faster hardware setup.

AI-written summary · about

" chapters (10)

1. 0:00CHISEL introduction
2. 2:325G end-to-end slicing problem
3. 4:39Optical slicing vs traffic engineering
4. 6:25RTT stability results
5. 8:08Free spectrum leveraging
6. 10:16Optical slicing algorithm
7. 12:48Slice allocation evaluation
8. 14:39Fragmentation handling
9. 15:45Hardware implementation
10. 17:11Conclusion and open-source

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