This read-only integer reports the rate at which TCP segments are retransmitted, i.e. segments sent that contain previously transmitted bytes. An admin treats a rising retransmission rate as a sign of network packet loss or congestion affecting the server's connections. For example, an increase in cpqOsTcpRetransmittedSegmentsPerSec coinciding with reports of slow application response would point to network-layer packet loss as the cause.