This counts Phase-2 exchanges this device itself sent that were subsequently found to be invalid, out of the total in cifIkeGlobalOutP2Exchgs. A nonzero and growing value here is unusual for a healthy, correctly-configured device, since it implies this device itself is originating malformed Phase-2 proposals, which would point at a software issue or a misconfigured local IPsec policy rather than anything on the peer's side. This is a less commonly elevated counter than its inbound counterpart, so seeing it climb is worth treating as a more unusual and higher-priority finding.