Specifies the order in which TACACS+ servers are configured within a user defined server group. Priority is assigned starting with 1 and incremental. If not set, it means this server is not part of a user defined group, this will be empty. Servers where priority is not configured will be reached out last Servers with equal priority in a group will be reached out as follows: Those belonging to vrf where vrf_name appears alphabetically earlier than the others are reached out first. If that's a tie, servers with address appearing alphabetically earlier than the others is reached out first. If that too is a tie, servers with smaller tcp port are reached out first