Increased time delays and decreased bandwidth are two remote caching performance issues to consider when you send data over a wide area network (WAN).
The Content Federation Services for Image Services solution is to send only one Remote Procedure Call (RPC) over the WAN per operation. Any RPC bursts are done over the local area network (LAN).
The Content Federation Services for Image Services solution sends large data objects over the WAN on the first read access only and caches them locally on the satellite Content Platform Engine server. For remote entry, if the cache is local, no network delay occurs when the system retrieves an object that was recently committed.