命令行：
easy-irf member member-ID renumber renumber-ID domain domain-ID //修改端口编号
easy-irf member member-ID domain domain-ID irf-port irf-port-id GigabitEthernet g-id GigabitEthernet g-id
easy-irf member member-ID domain domain-ID priority priority -id（1-32） //修改交换机优先级
