Is IKEv2 priority high or low

Cisco ASA and FTD, the IKEv2 priority is determined by a numerical value where the lower the number, the higher the priority

Priority Ranking: A policy with a priority of 1 is the highest priority, while higher numbers (e.g., 65,535) are lower priority.

Negotiation Order: When negotiating security associations (SA), the device starts with the lowest priority number and works its way up until it finds a match.

Best Practice: It is recommended to configure your most secure, desired settings with the highest priority (lowest number).