Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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VLAN Pool vs Large Subnet

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  • 1.  VLAN Pool vs Large Subnet

    Posted Dec 19, 2016 09:09 AM

    Years ago, it was Aruba's best practice to pool multiple VLANs (/24s) in a VAP profile. Recently, I have heard rumblings that it may be better practice now to just use a single, large subnet (/21 instead of a pool of 8 /24s). What do you guys recommend?



  • 2.  RE: VLAN Pool vs Large Subnet

    Posted Dec 19, 2016 09:24 AM

    I'd recommend going large if your switching infrastructure can handle it. The broadcast/multicast opptimisation technology has come a long way since /24 VLAN pools were the recommended best practice. Deployment critera do vary though so /24 VLAN pools are still a valid option. 

     

    Here's an article on best practice to implement a large subnet.

     

    Cheers

    James



  • 3.  RE: VLAN Pool vs Large Subnet

    Posted Dec 19, 2016 10:32 AM

    Also check out the Single VLAN Architecture for Wireless LAN VRD:

     

    http://community.arubanetworks.com/t5/Validated-Reference-Design/Single-VLAN-Architecture-for-WLAN/ta-p/257196