Efficient Multi-WAN Transport for 5G with OTTER
summary
OTTER implements a multi-WAN overlay (VMs, VPN gateways, private VNETs) across an 8-region cloud topology and a controller/orchestrator/measurement-coordinator stack. It models flow placement as an extended multicommodity problem solved via a linear program optimizer with greedy on-arrival placement and periodic global reoptimizaton. Measured on real overlay paths, OTTER increases throughput ~13% on average (up to 136%), cuts RTT ~15% (up to 56%), reduces jitter ~45%, and allocates 25–46% more bytes than greedy baselines while meeting per-flow resource constraints.
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chapters (8)
- 0:00Otter introduction
- 0:375G NR and cloudification
- 3:03Multi-WAN transport challenges
- 5:54Otter architecture
- 7:40Flow placement optimization
- 9:43Multi-WAN overlay design
- 10:47Otter performance results
- 12:11Summary
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