Split sentence

draft-ietf-quic-transport.md

@@ -2715,8 +2715,8 @@ expect to exchange application data for some time.  With this option, an
 endpoint could send a PING frame ({{frame-ping}}) periodically, which will cause
 the peer to restart its idle timeout period.  Sending a packet containing a PING
 frame also restarts the idle timeout for the endpoint if this is the first
-ack-eliciting packet sent since receiving a packet or when an acknowledgment is
-received.
+ack-eliciting packet sent since receiving a packet.  The idle time also restarts
+when an acknowledgment for the packet is received.
 
 Application protocols that use QUIC SHOULD provide guidance on when deferring an
 idle timeout is appropriate.  Unnecessary sending of PING frames could have a