This read-only counter tallies the cumulative number of IKE informational exchanges, such as notifications or deletions, successfully completed, a feature the description notes is not available in IKEv1 implementations. Admins on IKEv2 deployments can use it to track ancillary VPN protocol chatter distinct from the main Phase-1/Phase-2 negotiation counters. For example, a steady stream of clvIPsecInfoDone increments on an IKEv2 tunnel might simply reflect routine liveness-check or deletion notifications rather than any problem.