Class Central is learner-supported. When you buy through links on our site, we may earn an affiliate commission.

YouTube

Expanding Across Time to Deliver Bandwidth Efficiency and Low Latency

USENIX via YouTube

Overview

Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only!
Explore a conference talk that delves into Opera, a dynamic network architecture designed to deliver both low-latency and high-bandwidth packet delivery in datacenters. Learn how Opera utilizes multi-hop forwarding for latency-sensitive traffic while providing near-optimal bandwidth for bulk flows through time-varying source-to-destination circuits. Discover the innovative approach of rapid and deterministic network reconfiguration that allows Opera to implement an expander graph at any given moment while offering bandwidth-efficient single-hop paths between all racks over time. Understand how this design supports low-latency traffic with flow completion times comparable to cost-equivalent static topologies, while delivering up to 4x the bandwidth for all-to-all traffic and supporting up to 60% higher load for published datacenter workloads. Gain insights into the challenges, expander properties, highlevel design principles, matching properties, and practical considerations of implementing Opera in real-world datacenter environments.

Syllabus

Introduction
Challenges
Expanders
Inverse properties
Highlevel design properties
Matching properties
Staggering switches
Data center traffic
Packet level simulations
Practical considerations

Taught by

USENIX

Reviews

Start your review of Expanding Across Time to Deliver Bandwidth Efficiency and Low Latency

Never Stop Learning.

Get personalized course recommendations, track subjects and courses with reminders, and more.

Someone learning on their laptop while sitting on the floor.