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1.7.1 Introduction to Super VLAN
Super VLAN, also called VLAN aggregation, we introduce the notion of super VLAN and sub VLAN. One or more sub VLANs belong to a super VLAN, and sub VLAN does not occupy an absolute subnet segment any more. However, in the same super VLAN, whether host belongs to any sub VLAN, its IP address is within the subnet segment associated with super VLAN.