H3C Technologies H3C S12500 Series Switches - Manual (Page 124)

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# Shut down GigabitEthernet 4/0/1 and GigabitEthernet 4/0/2, disable the spanning tree
feature on GigabitEthernet 4/0/1 and GigabitEthernet 4/0/2 separately, and configure them as
trunk ports that permit VLANs 1 through 30.
[SwitchD] interface gigabitethernet 4/0/1
[SwitchD-GigabitEthernet4/0/1] shutdown
[SwitchD-GigabitEthernet4/0/1] undo stp enable
[SwitchD-GigabitEthernet4/0/1] port link-type trunk
[SwitchD-GigabitEthernet4/0/1] port trunk permit vlan 1 to 30
[SwitchD-GigabitEthernet4/0/1] quit
[SwitchD] interface gigabitethernet 4/0/2
[SwitchD-GigabitEthernet4/0/2] shutdown
[SwitchD-GigabitEthernet4/0/2] undo stp enable
[SwitchD-GigabitEthernet4/0/2] port link-type trunk
[SwitchD-GigabitEthernet4/0/2] port trunk permit vlan 1 to 30
[SwitchD-GigabitEthernet4/0/2] quit
# Create smart link group 1, and configure all VLANs mapped to MSTI 1 as the protected VLANs.
[SwitchD] smart-link group 1
[SwitchD-smlk-group1] protected-vlan reference-instance 1
# Configure GigabitEthernet 4/0/1 as the master port and GigabitEthernet 4/0/2 as the slave
port for smart link group 1.
[SwitchD-smlk-group1] port gigabitethernet4/0/1 master
[SwitchD-smlk-group1] port gigabitethernet4/0/2 slave
# Enable flush message sending in smart link group 1, and configure VLAN 20 as the transmit
control VLAN.
[SwitchD-smlk-group1] flush enable control-vlan 20
[SwitchD-smlk-group1] quit
# Bring up GigabitEthernet 4/0/1 and GigabitEthernet 4/0/2 again.
[SwitchD] interface gigabitethernet 4/0/1
[SwitchD-GigabitEthernet4/0/1] undo shutdown
[SwitchD-GigabitEthernet4/0/1] quit
[SwitchD] interface gigabitethernet 4/0/2
[SwitchD-GigabitEthernet4/0/2] undo shutdown
[SwitchD-GigabitEthernet4/0/2] quit
3. Configure Switch B:
# Create VLANs 1 through 30.
<SwitchB> system-view
[SwitchB] vlan 1 to 30
# Configure GigabitEthernet 4/0/1 as a trunk port, and assign it to VLANs 1 through 30. Enable
flush message receiving on it, and configure VLAN 10 and VLAN 20 as the receive control VLANs.
[SwitchB] interface gigabitethernet 4/0/1
[SwitchB-GigabitEthernet4/0/1] port link-type trunk
[SwitchB-GigabitEthernet4/0/1] port trunk permit vlan 1 to 30
[SwitchB-GigabitEthernet4/0/1] smart-link flush enable control-vlan 10 20
[SwitchB-GigabitEthernet4/0/1] quit
# Configure GigabitEthernet 4/0/2 as a trunk port, and assign it to VLANs 1 through 30. Disable
the spanning tree feature and enable flush message receiving on it, and configure VLAN 20 as the
receive control VLAN.