3Com S7906E Command Reference Manual page 228

Parameters
None
Description
Use the supervlan command to configure the current VLAN as a super VLAN.
Use the undo supervlan command to remove the super VLAN configuration for the current VLAN.
Note that:
You cannot configure a super VLAN as the guest VLAN for a port, and vice versa. For more
information about guest VLAN, refer to 802.1X Configuration in the Security Volume.
You can configure Layer 2 multicast for a super VLAN. However, the configuration cannot take
effect.
You can configure DHCP, Layer 3 multicast, dynamic routing, and NAT for the VLAN interface of a
super VLAN. However, only DHCP can take effect.
Configuring VRRP for the VLAN interface of a super VLAN affects network performance. Therefore,
it is not recommended to configure this function.
Related commands: display supervlan.
Examples
# Configure VLAN 2 as a super VLAN.
<Sysname> system-view
[Sysname] vlan 2
[Sysname-vlan2] supervlan
2-4