WAN Optimization are useful on a high latency links (>200ms?). 60-90% data
Steelhead devices are setup in-path.
WAN Optimization techniques
- Compression at the TCP packet level
- Scalable Data Referencing – Data is stored on the local Steelhead with a pointer. If the remote Riverbed sees a block of data that has already been sent, it send the pointer to that data, not the full package.
- Transaction prediction.