This counter tracks the cumulative number of High Availability sync packets that had to be resent, indicating the original transmission was not acknowledged or was lost. An administrator uses this to detect instability on the HA sync link, since a rising resend count relative to clvHASyncSentPackets signals packet loss or latency issues between cluster peers. For example, a sudden increase in resent packets during a firmware update window might correlate with the standby unit briefly failing to acknowledge sync data.