H3C S7500E-X Configuration Manual page 224

[SwitchA] vlan 301 to 302
# Configure the customer-side port GigabitEthernet 1/0/1 as a trunk port.
<SwitchA> system-view
[SwitchA] interface gigabitethernet 1/0/1
[SwitchA-GigabitEthernet1/0/1] port link-type trunk
# Assign GigabitEthernet 1/0/1 to all original VLANs and translated VLANs.
[SwitchA-GigabitEthernet1/0/1] port trunk permit vlan 1 2 3 101 201 301
# Configure one-to-one VLAN mappings on GigabitEthernet 1/0/1 to map VLANs 1, 2, and 3 to
VLANs 101, 201, and 301, respectively.
[SwitchA-GigabitEthernet1/0/1] vlan mapping 1 translated-vlan 101
[SwitchA-GigabitEthernet1/0/1] vlan mapping 2 translated-vlan 201
[SwitchA-GigabitEthernet1/0/1] vlan mapping 3 translated-vlan 301
[SwitchA-GigabitEthernet1/0/1] quit
# Configure the customer-side port GigabitEthernet 1/0/2 as a trunk port.
[SwitchA] interface gigabitethernet 1/0/2
[SwitchA-GigabitEthernet1/0/2] port link-type trunk
# Assign GigabitEthernet 1/0/2 to all original VLANs and translated VLANs.
[SwitchA-GigabitEthernet1/0/2] port trunk permit vlan 1 2 3 102 202 302
# Configure one-to-one VLAN mappings on GigabitEthernet 1/0/2 to map VLANs 1, 2, and 3 to
VLANs 102, 202, and 302, respectively.
[SwitchA-GigabitEthernet1/0/2] vlan mapping 1 translated-vlan 102
[SwitchA-GigabitEthernet1/0/2] vlan mapping 2 translated-vlan 202
[SwitchA-GigabitEthernet1/0/2] vlan mapping 3 translated-vlan 302
[SwitchA-GigabitEthernet1/0/2] quit
# Configure the network-side port GigabitEthernet 1/0/3 as a trunk port.
[SwitchA] interface gigabitethernet 1/0/3
[SwitchA-GigabitEthernet1/0/3] port link-type trunk
# Assign GigabitEthernet 1/0/3 to the translated VLANs.
[SwitchA-GigabitEthernet1/0/3] port trunk permit vlan 101 201 301 102 202 302
[SwitchA-GigabitEthernet1/0/3] quit
Configure Switch B in the same way Switch A is configured. (Details not shown.)
2.
Configure Switch C:
3.
# Enable DHCP snooping.
<SwitchC> system-view
[SwitchC] dhcp snooping enable
# Create the original VLANs and translated VLANs, and enable ARP detection for these
VLANs.
[SwitchC] vlan 101
[SwitchC-vlan101] arp detection enable
[SwitchC-vlan101] vlan 201
[SwitchC-vlan201] arp detection enable
[SwitchC-vlan201] vlan 301
[SwitchC-vlan301] arp detection enable
[SwitchC-vlan301] vlan 102
[SwitchC-vlan102] arp detection enable
[SwitchC-vlan102] vlan 202
[SwitchC-vlan202] arp detection enable
[SwitchC-vlan202] vlan 302
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