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How do different Sub VLANs in the same Super VLAN communication with each other? |
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It is also known as VLAN aggregation and is a specialized IP address optimization technology. According to this technology, IP addresses in a network segment are allocated to different sub VLANs, which belong to the same super VLAN. Each sub VLAN is an independent broadcast domain. Different sub VLANs are isolated on layer 2. When users in the sub VLANs require L3 communication, the IP address of virtual interface of the super VLAN is used as the gateway address. In this manner, multiple VLANs share the same IP address, thereby saving IP resources. In addition, the ARP proxy is used to enable the interworking between sub VLANs on L3 and the interworking between the sub VLAN and other networks. The ARP proxy can forward and process ARP requests and responses, thereby enabling the interworking between ports, isolated on L2, on the L3. In default state, the ARP proxy is enabled for the super VLAN and sub VLAN. |
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