Operation Manual – Extended VLAN ApplicationH3C S7500 Series Ethernet Switches Chapter 3 Super VLAN3-3Caution:The port command is only used to add the Access ports to a sub VLAN. If you want toadd a Trunk port or a Hybrid port to a sub VLAN, you need to execute the port trunkpermit vlan command and the port hybrid vlan command in Ethernet port view. Referto the Port part of the manual.Note that you can add multiple ports (except the uplink port) for a sub VLAN.3.2.4 Configuring the Mapping between a Super VLAN and Sub VLANsFollow these steps to configure the mapping between a super VLAN and sub VLAN(s):To do… Use the command… RemarksEnter system view system-view —Enter VLAN view of the super VLAN vlan vlan-id —Establish the mapping between thesuper VLAN and sub VLAN(s) port interface-list RequiredCaution:z The sub VLANs must exist before you create mapping between the sub VLANs andthe super VLAN.z When you establish mapping between the super VLAN and the sub VLANs, if aVLAN interface is configured for the sub VLAN, the system will prompt you to deletethe interface to establish the mapping successfully.z After establishing the mapping between the sub VLANs and the super VLAN, youcan still add (or remove) ports to (from) the sub VLANs.z The system allows for up to 1024 sub VLANs.3.2.5 Configuring Super VLAN to Support DHCP RelayWith DHCP relay function enabled on the VLAN interface of the super VLAN, the hostsof all sub VLANs that map with the super VLAN can dynamically obtain IP addressesfrom the outside networks.With the DHCP relay function enabled on the VLAN interface of the super VLAN, thehosts of the sub VLANs that map the interface and the DHCP server in another network
