This is a 64-bit counter of connection setup attempts for the specific protocol denoted by cufwConnProtocol that were aborted before reaching completion, whether by the firewall, the initiator, or the responder; like its global counterpart, this value subsumes the per-protocol policy-declined and resource-declined counts. An admin uses this to isolate which specific protocol is experiencing setup failures rather than relying only on the aggregate global figure. For example, seeing this counter climb only for one protocol row while others stay flat tells the admin the problem is specific to that protocol's traffic, not a firewall-wide issue.