H3C Technologies H3C S5560 Series Switches - Manual (Page 181)

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Step Command Remarks
4. (Optional.) Configure
Layer 3 communication
between sub-VLANs.
• Enable local proxy ARP for devices
that run IPv4 protocols:
local-proxy-arp enable
• Enable local proxy ND for devices
that run IPv6 protocols:
local-proxy-nd enable
By default:
• Sub-VLANs cannot communicate
with each other at Layer 3.
• Local proxy ARP or ND is disabled.
For more information about local
proxy ARP and proxy ND, see Layer
3—IP Services Configuration Guide.
For more information about
local-proxy-arp enable and
local-proxy-nd enable commands, see
Layer 3—IP Services Command
Reference.
Displaying and maintaining super VLANs
Execute display commands in any view.
Task Command
Display information about super VLANs and all
sub-VLANs associated with each super VLAN.
display supervlan [ supervlan-id ]
Super VLAN configuration example
Network requirements
As shown in Figure 45 :
• GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 are in VLAN 2.
• GigabitEthernet 1/0/3 and GigabitEthernet 1/0/4 are in VLAN 3.
• GigabitEthernet 1/0/5 and GigabitEthernet 1/0/6 are in VLAN 5.
To save IP addresses and enable sub-VLANs to be isolated at Layer 2 but interoperable at Layer 3,
perform the following tasks:
• Create a super VLAN and assign an IP address to its VLAN interface.
• Associate the super VLAN with VLANs 2, 3, and 5.