-Online connection deadline of node inactivity in seconds. It is the time
-connection considered dead after not receiving/sending any packets and
-node must disconnect. By default it is set to 10 seconds -- that means
-disconnecting after 10 seconds when no packets received and transmitted.
-This can be set to rather high values to keep connection alive (to
-reduce handshake overhead and delays), wait for appearing packets ready
-to send and notifying remote side about their appearance.
+Online connection deadline of nodes inactivity in seconds. It is the
+time connection considered dead after not receiving/sending any packets
+(except for PINGs) and connection must be terminated. By default it is
+set to 10 seconds. This can be set to rather high values to keep
+connection alive (to reduce handshake overhead and delays), wait for
+appearing packets ready to send and notifying remote side about their
+appearance.