How do I configure VLAN pooling in Aruba Instant?

By Arunkumar posted Jul 02, 2014 07:52 PM

  

This article explains:

1. Need for VLAN Pooling in IAP
2. Configuring VLAN Pool in IAP
4. What we cannot achieve using VLAN pooling

VLAN Pooling is a new feature added in OS version 6.2.0.0_3.2.0. Any version prior to this does not have the VLAN Pooling feature.

 

In a single IAP cluster, there can be a large number of clients in the same VLAN. This leads to a high level of broadcasts in the same subnet. The solution to this is to partition the network into reasonably-sized subnets and use L3-mobility between those subnets, when clients roam. However, there are various situations, like simple network design considerations, where a large number of clients need to be in the same subnet. VLAN pooling provides a solution in such scenarios. Each client is randomly assigned a VLAN from a pool of
VLANs on the same SSID, thereby automatically partitioning a single broadcast domain of clients into multiple VLANs.

VLAN Pooling ensures client gets the same VLAN across all APsin the cluster.

NOTE: VLAN Pooling and L3 Mobility cannot be used together. Also, random VLAN assignment 
algorithm does not ensure even distribution of clients.

 

 

Environment : This article applies to all IAPs running OS version 6.2.0.0_3.2.0.

 

Navigate to New WLAN > VLAN tab > Static > Assign VLAN ID

 

 

rtaImage (36).png

 

Client VLAN assignments can be viewed in CLI and in Support UI by checking the AP association table

 

rtaImage (37).png

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Comments

Jul 22, 2014 05:20 PM

"Named VLAN" is not supported in Instant. As shown in the above screen shot, we can only list the VLAN ID's.

Jul 22, 2014 03:34 AM

We can define a vlan pool with a pool name, and assign the pool name in the VLAN 'box', right?