configure vlan subvlan
configure vlan vlan_name [add | delete] subvlan sub_vlan_name
Description
Adds or deletes a subVLAN to a superVLAN.
Syntax Description
|
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. |
Usage Guidelines
The following properties apply to
VLAN
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 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.
Example
The following example adds the subVLAN "vsub1" to the superVLAN
"vsuper":
configure vlan vsuper add subvlan vsub1
History
This command was
first available in ExtremeXOS 12.1.
Platform Availability
This command is available on ExtremeSwitching 5320, 5420, 5520,
and 5720 series switches.
