The VMWare proposition offers some similarities with Silver Peak, they also offer FEC (Forward Error Correction) and TCP optimisation.
VeloCloud offers both hardware and software clients with full Firewall functionality. While researching the VeloCloud proposition, their cloud resident gateways are of benefit to companies requiring a secure overlay that is transport independent, operating across any combination (public or private circuits), with secure connectivity to enterprise data centers, cloud compute and SaaS applications.
Some further key benefits are their application improvement performance over degraded links which also includes delay sensitive apps such as voice and video. The VeloCloud strategy looks very strong over the next 12 months with marketing suggesting intent based WAN features are on the horizon.