Symantec deployed an SDN using OpenStack with the following key aspects:
1. They created different "Classes of Service" including a development environment and a production environment to onboard teams and manage workloads.
2. They provided self-service user onboarding through Horizon with automatic network creation to hide complexities.
3. They offered load balancing as a service using HA Proxy with various optimizations to achieve high performance.
4. They attached baremetal servers to the overlay network by launching them in network namespaces.
5. They aimed for over 99.95% control plane availability using a distributed controller and Cassandra setup with automation and monitoring.
VIP Members - 16 CPU, 32GB RAM
Stats - num connections, session active/total/drops, bytes in/out, response times
Two nics on two different networks (swift proxy network and replication network)
Not production yet. Still exploring. Recent issues: Kernel panic on 3.16 kernel with network namespaces.