H3C Technologies H3C S12500 Series Switches - Manual (Page 201)

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[DeviceA] interface GigabitEthernet 4/0/1
[DeviceA-GigabitEthernet4/0/1] port link-type trunk
[DeviceA-GigabitEthernet4/0/1] port trunk permit vlan 100
[DeviceA-GigabitEthernet4/0/1] quit
[DeviceA] interface GigabitEthernet 4/0/2
[DeviceA-GigabitEthernet4/0/2] port link-type trunk
[DeviceA-GigabitEthernet4/0/2] port trunk permit vlan 100
[DeviceA-GigabitEthernet4/0/2] quit
# Set the loopback detection action to shutdown.
[DeviceA] loopback-detection action shutdown
# Set the loopback detection interval to 35 seconds.
[DeviceA] loopback-detection interval-time 35
Configuring Device B
# Create VLAN 100.
<DeviceB> system-view
[DeviceB] vlan 100
[DeviceB–vlan100] quit
# Configure GigabitEthernet 4/0/1 and GigabitEthernet 4/0/2 as trunk ports, and assign the ports to
VLAN 100.
[DeviceB] interface GigabitEthernet 4/0/1
[DeviceB-GigabitEthernet4/0/1] port link-type trunk
[DeviceB-GigabitEthernet4/0/1] port trunk permit vlan 100
[DeviceB-GigabitEthernet4/0/1] quit
[DeviceB] interface GigabitEthernet 4/0/2
[DeviceB-GigabitEthernet4/0/2] port link-type trunk
[DeviceB-GigabitEthernet4/0/2] port trunk permit vlan 100
[DeviceB-GigabitEthernet4/0/2] quit
# Shut down GigabitEthernet 4/0/1 to prevent loops.
[DeviceB] interface GigabitEthernet 4/0/1
[DeviceB-GigabitEthernet4/0/1] shutdown
[DeviceB-GigabitEthernet4/0/1] quit
Configuring Device C
# Create VLAN 100.
<DeviceC> system-view
[DeviceC] vlan 100
[DeviceC–vlan100] quit
# Configure GigabitEthernet 4/0/1 and GigabitEthernet 4/0/2 as trunk ports, and assign the ports to
VLAN 100.
[DeviceB] interface GigabitEthernet 4/0/1
[DeviceB-GigabitEthernet4/0/1] port link-type trunk
[DeviceB-GigabitEthernet4/0/1] port trunk permit vlan 100
[DeviceB-GigabitEthernet4/0/1] quit
[DeviceB] interface GigabitEthernet 4/0/2
[DeviceB-GigabitEthernet4/0/2] port link-type trunk
[DeviceB-GigabitEthernet4/0/2] port trunk permit vlan 100