Hummingbird: Fast, Flexible, and Fair Inter-Domain Bandwidth Reservations
CoRR(2023)
摘要
The current Internet lacks quality-of-service guarantees for real-time
applications like video calls and gaming, cloud-based systems, financial
transactions, telesurgery, and other remote applications that benefit from
reliable communication. To address this problem, this paper introduces
Hummingbird: a novel, lightweight bandwidth-reservation system that provides
fine-grained inter-domain reservations for end hosts and introduces several
improvements over previous designs.
Hummingbird enables flexible and composable reservations with end-to-end
guarantees, and addresses an often overlooked, but crucial, aspect of bandwidth
reservation systems: incentivization of network providers. Hummingbird
represents bandwidth reservations as tradeable assets which allows markets to
emerge that ensure fair and efficient resource allocation and encourage
deployment by remunerating providers. This incentivization is facilitated by
decoupling reservations from network identities, which enables novel
control-plane mechanisms and allows us to design a control plane based on smart
contracts.
Hummingbird also provides an efficient reservation data plane which
streamlines the processing on routers and thus simplifies the implementation,
deployment, and traffic policing while maintaining robust security properties.
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