Stateless datacenter load-balancing with Beamer Olteanu et al., NSDI’18
We’ve spent the last couple of days looking at datacenter network infrastructure, but we didn’t touch on the topic of load balancing. For a single TCP connection, you want all of the packets to end up at the same destination. Logically, a load balancer (a.k.a. ‘mux’) needs to keep some state somewhere to remember the mapping.
Existing load balancer solutions can load balance TCP and UDP traffic at datacenter scale at different price points. However, they all keep per-flow state; after a load balancer decides which server should handle a connection, that decision is “remembered” locally and used to handle future packets of the same connection. Keeping per-flow state should ensure that ongoing connections do not break when servers and muxes come or go…
There are two issues with keeping this state though. Firstly , it can sometimes end up incomplete or out of date (especially under periods of rapid network change, such as during scale out and scale in). Secondly, there’s only a finite amount of resource to back that state, which opens the door to denial of service attacks such as SYN flood attacks.
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The post BiB 40: Anuta To Launch SaaS Version Of Its ATOM Orchestration Software appeared first on Packet Pushers.
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This course will teach you how to use Terraform to provision your AWS infrastructure. It will guide you through setting up Terraform with your AWS account and take you through creating your first resource with Terraform in AWS.
About the Course:
This course is taught by Kevin Holditch and is 4 hours and 28 minutes long.
What You’ll Learn:
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