1*99dedb4cSyasuokacarp_1: simplest. becoming master properly. demote. 2*99dedb4cSyasuokacarp_2: carp_1 + without virtual mac. 3*99dedb4cSyasuokacarp_3: carp_1 + carp peer 4*99dedb4cSyasuokacarp_4: carp_1 + without virtual mac + carp peer 5