Configuring A Super Vlan; Overview; Configuration Procedure - H3C S3600V2 SERIES Layer 2-Lan Switching Configuration Manual

Configuring a super VLAN

Overview

Super VLAN, also called VLAN aggregation, was introduced to save IP address space.
A super VLAN is associated with multiple sub-VLANs. You can create a VLAN interface for a super VLAN
and assign an IP address for the VLAN interface. However, you cannot create a VLAN interface for a
sub-VLAN. You can assign a physical port to a sub-VLAN, but not to a super VLAN. All ports of a
sub-VLAN use the VLAN interface IP address of the associated super VLAN. Packets cannot be
forwarded between sub-VLANs at Layer 2.
To enable Layer 3 communication between sub-VLANs, create a super VLAN and the VLAN interface,
and enable local proxy Address Resolution Protocol (ARP) or local proxy Neighbor Discovery (ND) on
the VLAN interface depending on the VLAN interface IP address type (IPv4 or IPv6) as follows:
In an IPv4 network, enable local proxy ARP on the VLAN interface, so that the super VLAN can
•
forward and process ARP requests and replies.
• In an IPv6 network, enable local proxy ND on the VLAN interface, so that the super VLAN can
forward and process the Neighbor Solicitation (NS) messages and Neighbor Advertisement (NA)
messages.

Configuration procedure

To configure a super VLAN, complete the following tasks:
Configure sub-VLANs.
1.
Configure a super VLAN, and associate the super VLAN with the sub-VLANs configured earlier.
2.
Configure a VLAN interface for the super VLAN. The VLAN interface enables communication
3.
among hosts and sub-VLANs.
Configuration restrictions and guidelines
Do not configure a VLAN as a super VLAN and a sub-VLAN at the same time.
•
• When dynamic MAC-based VLAN assignment is enabled on a port, you cannot configure VLANs
of the MAC address-to-VLAN entries as super VLANs.
When a VLAN is configured as an isolate-user-VLAN or associated with secondary VLANs, you
•
cannot configure the VLAN as a super VLAN.
Configuring sub-VLANs
You can repeat this task to configure multiple sub-VLANs.
To configure a sub-VLAN:
Step
1. Enter system view.
2. Create a sub-VLAN and enter
VLAN view.
Command
system-view
vlan vlan-id
144
Remarks
N/A
If the specified VLAN already exists, this
command enters VLAN view only.