The talk covered how Microsoft is building its hyperscale SDN, including its own scalable controllers and hardware-accelerated hosts.
Some highlights:
- Microsoft Azure’s customer facing offering include App Services, Data Services and Infrastructure Services
- Over 500 new features were added to Azure in the past year, including better VMs, virtual networks and storage.
- Microsoft is opening new data centers all over the world
- Azure is running millions of compute instances
- There are now more than 20 ExpressRoute locations for direct connect to Azure.
- Azure connects with 1,600 peered networks through 85 IXPs
- One out of 5 VMs running on Azure is a Linux VM
- A key principle for Microsoft’s Hyperscale SDN is to push as much of the logic processing down to the servers (hosts)
- Hyperscale controllers must be able to handle 500K+ server (hosts) in a region
- The controller must be able to scale down to smaller data centers as well
- Microsoft Azure Service Fabric is a platform for micro-service-based applications
- Microsoft has released a developer SDK for its Service Fabric
- Azure is using a Virtual Filtering Platform (VFP) to act as a virtual switch inside Hyper-V VMSwitch. This provides core SDN functionality for Azure networking services. It uses programmable rule/flow tables to perform per-packet actions. This will also be extended to Windows Server 2016 for private clouds.
- Azure will implement RDMA for very high performance memory transport between servers. It will be enabled at 40GbE for Azure Storage. All the logic is in the server.
- Server interface speeds are increasing: 10G to 40G to 50G and eventually to 100G
- Microsoft is deploying FPGA-based Azure SmartNICs in its servers to offload SDN functions from the CPU. The SmartNICs can also perform crypto, QoS and storage acceleration.
The #ONS2015 keynote can be seen here:
