configure vlan subvlan

configure vlan vlan_name [add | delete] subvlan sub_vlan_name

Description

Adds or deletes a subVLAN to a superVLAN.

`vlan_name`	Specifies a superVLAN name.
add	Adds the subVLAN to the superVLAN.
delete	Deletes the subVLAN from the superVLAN.
`sub_vlan_name`	Specifies a subVLAN name.

N/A.

The following properties apply to VLAN (Virtual LAN) aggregation operation:

All broadcast and unknown traffic remain local to the subVLAN and does not cross the subVLAN boundary. All traffic within the subVLAN are switched by the subVLAN, allowing traffic separation between subVLANs (while using the same default router address among the subVLANs).
Hosts can be located on the superVLAN or on subVLANs. Each host can assume any IP address within the address range of the superVLAN router interface. Hosts on the subVLAN are expected to have the same network mask as the superVLAN and have their default router set to the IP address of the superVLAN.
All IP unicast traffic between subVLANs is routed through the superVLAN. For example, no ICMP (Internet Control Message Protocol) redirects are generated for traffic between subVLANs, because the superVLAN is responsible for subVLAN routing. Unicast IP traffic across the subVLANs is facilitated by the automatic addition of an ARP entry (similar to a proxy ARP entry) when a subVLAN is added to a superVLAN. This feature can be disabled for security purposes.

The following example adds the subVLAN "vsub1" to the superVLAN "vsuper":

configure vlan vsuper add subvlan vsub1

This command was first available in ExtremeXOS 12.1.

This command is available on the Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2, X620, X690, X870 series switches.

Published December 2017prev | next