9 Super VLAN Configuration
This chapter describes the Super VLAN configuration of DGS-3610 series.
9.1 Overview
Super VLAN is a method for VLAN division. Super VLAN, also called VLAN aggregate, is a
management technology for optimizing the IP addresses. Its principle is to assign the IP
address of a network segment to different sub VLANs that belong to the same Super VLAN.
Each sub VLAN is an independent broadcast domain, and layers 2 of different sub VLANs
are isolated from each other. To perform layer 3 communication, the user inside the Sub
VLAN uses the IP address of the virtual interface of Super VLAN as the gateway address.
This allows multiple VLANs to share one IP address, saving the IP address resources. At the
same time the ARP agent function should be used in order to realize interoperation between
layers 3 of different sub VLANs, as well as interoperation between the sub VLAN and other
networks. The ARP agent can be used to forward and handle the ARP request and response
packet, so as to realize layers 3 inteconnection between isolated ports of layer 2. By default,
the ARP agent function is enabled for Super VLAN and Sub VLAN.
The Super VLAN technology greatly saves the IP addresses, because it just assigns one IP
addresses to the Super VLAN that includes several Sub VLANs. Not only save the
addresses but also making network management easy.
Figure 9-1
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