光纤连线方式（建议配置完交换机后再连接）
A:port-49—-B:port-50
B:port-49—-C:port-50
C:port-49—-A:port-50
交换机A配置如下：
interface range ten-gigabitethernet 1/0/49 to ten-gigabitethernet 1/0/50
shutdown
irf-port 1/1
port group interface Ten-GigabitEthernet1/0/49
#
irf-port 1/2
port group interface Ten-GigabitEthernet1/0/50
#
interface range ten-gigabitethernet 1/0/49 to ten-gigabitethernet 1/0/50
undo shutdown
quit
save
irf-port-configuration active
交换机B配置如下：
irf member 1 renumber 2
reboot
interface range ten-gigabitethernet 2/0/49 to ten-gigabitethernet 2/0/50
shutdown
irf-port 2/1
port group interface Ten-GigabitEthernet2/0/49
#
irf-port 2/2
port group interface Ten-GigabitEthernet2/0/50
#
interface range ten-gigabitethernet 2/0/49 to ten-gigabitethernet 2/0/50
undo shutdown
quit
save
irf-port-configuration active
交换机C配置如下：
irf member 1 renumber 3
reboot
interface range ten-gigabitethernet 3/0/49 to ten-gigabitethernet 3/0/50
shutdown
irf-port 3/1
port group interface Ten-GigabitEthernet3/0/49
#
irf-port 3/2
port group interface Ten-GigabitEthernet3/0/50
#
interface range ten-gigabitethernet 3/0/49 to ten-gigabitethernet 3/0/50
undo shutdown
quit
save
irf-port-configuration active