-human-readable name of the link/address. Values are @verb{|addr:port|}
-pairs pointing to @ref{nncp-daemon}'s listening instance. May be omitted
-if either no direct connection exists, or @ref{nncp-call} is used with
-forced address specifying.
-
-@anchor{Onlinedeadline}
+human-readable name of the address. For direct TCP connections use
+@verb{|host:port|} format, pointing to @ref{nncp-daemon}'s listening
+instance. Also you can pipe connection through the external command
+using @verb{#|some command#} format. @code{/bin/sh -c "some command"}
+will start and its @code{stdin}/@code{stdout} used as a connection. May
+be omitted if either no direct connection exists, or @ref{nncp-call} is
+used with forced address specifying.
+
+@anchor{CfgXxRate}
+@item rxrate/txrate
+If greater than zero, then at most *rate packets per second will be
+sent/received after the handshake. It could be used as crude bandwidth
+traffic shaper: each packet has at most 64 KiB payload size. Could be
+omitted at all -- no rate limits.
+
+@anchor{CfgOnlineDeadline}