![]() ![]() It became harder to create VLAN and subnets per rack like we used to do. ![]() Including hypervisors to 元 routing domain raised another issue. So, we are trying to solve these issues by using EBGP between hypervisors and ToRs to expand 元 routing domains to hypervisors. Also, there were other problems such as packet losses in ToR switch maintenance and no support for live migration between racks. The bottleneck issue on ToR was resolved by Clos Network, but because ToR terminates L2, we needed to manage subnets of each ToR. So, to solve the fundamental issue in the new region, we setup a non-blocking network with Clos Network using BGP, a recommendation from RFC7938. Which gave us some homework, including having to deal with the structure where after creating VMs such as watcher-an OpenStack project-VMs were to be loaded on different hypervisors depending on the VM's workload. This left us no option but to place the whole system on the same outage domain, and we were not able to enforce scheduling on the workload only with OpenStack Nova. Our first approach to avoid bottleneck on ToR was to schedule VMs that needed VM communication on the same ToR's hypervisor. We decided that our private cloud needed to support such use cases too. But, you can easily realize that there is an increase of such use case on private clouds, due to having more systems based on microservice architecture and machine learning, which tend to have a high frequency of communication between VMs. This won't be an issue if VMs do not communicate much with each other. The bandwidth of the legacy network architecture of LINE's private cloud was narrower than that of the downlink of ToR (Top of Rack), which caused bottlenecks in ToR communication, decreasing the throughput drastically. You can also find the latest on Karthik’s sessions here.Horizontal expansion of data center network You can learn more about the OpenStack Summit Boston here, or register for the Summit here. In this session we will show how Calico with its pure layer 3 approach to software defined networking offers a simple solution that spans both OpenStack and Kubernetes helping you manage your networking in a consist way. Join this session to discover how you can use a common, fully Open Source networking layer across both OpenStack and Kubernetes to deliver robust and scalable networkng to your containers and VMs.ĭevelopers love the flexibility and speed of development and operations that containers promise.Yet as many discover as they push into production real live implementations require solid and scaleable underlying infrastructure, especially networking. Wednesday, May 10th, 4:30pm – 5:10pm Common Networking Operations Across Kubernetes and OpenStack with Calico ![]() Time permitting, we’ll prove that despite great power, Kubernetes networking can be as easy as pie, with a live walkthrough of deploying a multi-node Kubernetes cluster, with powerful networking, in under 5 minutes (Demo Gods willing, of course). Along the way, we’ll provide insight into why these design choices were made in Kubernetes, and the benefits to developers, users and architects. Followed by a walkthrough of potential routes through that map (nudge, nudge, wink, wink) to ensure simple, yet scalable deployments. We’ll start with a big picture map of where the different Kubernetes network abstractions are, and how they interact with each other. This session demystifies these concepts to those entering the world of Kubernetes networking from the land of OpenStack. can be distinctly different to OpenStack or Neutron artifacts like ML2, 元-agent, security groups, metadata proxy, integration bridges and other OpenStack or Neutron artifacts. External Load Balancing, service proxy’s, namespaces, labels, selectors, policy, etc. Terms like services, pods, CNI, Ingress, Internal vs. Tuesday, May 9th, 4:40pm – 5:20pm Kubernetes Networking for ‘Stackers: Getting Packets from Pod to PodĪnyone joining the wonderful world of Kubernetes networking from OpenStack will confront new terminology and networking/policy concepts that are different from OpenStack’s equivalents. CalicoCon + Cloud-Native Security Summit.Compare Products Open source, Cloud and Enterprise.Calico Enterprise Zero trust security for Kubernetes.Calico Cloud Security for containers and Kubernetes.Calico Open Source eBPF-based networking and security. ![]()
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