“Trickle is a lightweight userspace bandwidth shaper for users
with low-speed Internet connections that lets you limit the
bandwidth that a specific protocol is using so that you can
maintain multiple simultaneous connections and not end up in a
traffic jam.“Any user on the system can run Trickle without needing
administrative privileges. The software can handle only TCP stream
connections, so it cannot shape traffic for network services that
uses UDP stream connections, such as DNS (Bind) and TFTP…”
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