Applications that would like to take advantage of the Low Bandwidth
extension to X (LBX) must make their connections to an lbxproxy.
These applications need to know nothing about LBX, they simply connect
to the lbxproxy as if were a regular server. The lbxproxy accepts
client connections, multiplexes them over a single connection to the X
server, and performs various optimizations on the X protocol to make
it faster over low bandwidth and/or high latency connections.