D-Link DGS-6600-48TS Configuration Guide - Page 170
Super VLAN Configuration Commands, Configuring a super VLAN
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Volume 3-Layer 2 Configurations / Chapter 17-Super VLAN Super VLAN Configuration Commands The above figure illustrates a simple super VLAN environment. The VLAN 3 and VLAN 5 are configured as sub VLANs and are associated to the super VLAN 10. An IP address is assigned to super VLAN 10, and both sub VLAN 3 and sub VLAN 5 are located in this subnet. In this environment, PC2 and PC3 can communicate directly without a forwarding device. If PC3 in sub VLAN 3 wants to communicate with PC5 in the sub VLAN 5, after knowing that the peer is located in the same network segment, PC3 directly sends an ARP request packet with a destination IP address. Upon receiving this ARP request packet, the switch directly broadcasts this packet through Layer 2 within Sub VLAN 3, and sends a copy to the ARP module of the device. This module first checks whether the destination IP address in the ARP request packet is in Sub VLAN 3. If so, it will discard this packet because it and PC5 are located in the same broadcast domain, and the destination host will directly respond to PC3. If not, it will respond PC3 with the MAC address of Super VLAN 10, acting as an ARP agent. Super VLAN Configuration Commands The following table lists the Supervlan commands and an explanation of their functions. Command supervlan subvlan VLAN-ID [, | -] subvlan-address-range show supervlan Explanation Use the supervlan command in the VLAN configuration mode to set the VLAN as a super VLAN. Use the no supervlan command in the VLAN configuration mode to delete the super VLAN. Use subvlan command to specify the sub VLANs of a super VLAN. Use no subvlan command to delete sub VLANs. The Valid VLAN ID range is 1 to 4094. Use subvlan-address-range command to set the IP address range of the sub VLAN. Use the no subvlanaddress-range command to remove the IP address range of the sub VLAN. Use this command to show the configuration of the super VLAN and its sub VLANs. Configuring a super VLAN Firstly configure sub-VLANs. Configure a super VLAN, and associate the super VLAN with the sub-VLANs configured earlier. Configure a VLAN interface for the super VLAN. The VLAN interface enables communication among hosts and sub-VLANs. DGS-6600 Configuration Guide 170