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Access network design for branch, remote, outdoor and campus locations with Aruba access points, and mobility controllers.
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Possible to priortize traffic on SSID for certain IP / domain name?

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  • 1.  Possible to priortize traffic on SSID for certain IP / domain name?

    Posted Sep 30, 2022 02:45 PM
    I've been asked to see if there is a way to prioritize traffic destined for a set of IPs or domain names on our WiFi. We have APs installed on our football field to provide wireless access in the event of a building evacuation. Users use an app on their phones to check in students, but when there is close to 1500 clients out there the performance is not great.

    Is it possible if I find the IPs or domain names that the app uses that I could give that traffic priority so maybe see a performance increase?


  • 2.  RE: Possible to priortize traffic on SSID for certain IP / domain name?

    EMPLOYEE
    Posted Sep 30, 2022 03:29 PM
    Is most of the traffic coming from the client or going to the client?  If the traffic is coming from the internet going to the client, you can write an ACL like this:

    config t
    netdestination zoom
    description "Zoom"
    name *.zoom.us
    !
    ip access-list session zoom
    any alias zoom any permit disable-scanning queue high tos 46 dot1p-priority 6
    alias zoom any any permit disable-scanning queue high tos 46 dot1p-priority 7
    ​
    ...BUT....that prioritization will only apply priority "over the air" from the access point to the client.  The client would have to have a way to prioritize traffic from itself to the access point across the wireless medium which is where the real contention exists.

    The only other option would be to provide enough coverage so that fewer clients are on more access points, so that the traffic is spread out with less contention.

    To be clear, the configuration above will prioritize traffic from the access point to clients, but has no effect on traffic from the clients to the access points.

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    Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.

    HPE Design and Deploy Guides: https://community.arubanetworks.com/support/migrated-knowledge-base?attachments=&communitykey=dcc83c62-1a3a-4dd8-94dc-92968ea6fff1&pageindex=0&pagesize=12&search=&sort=most_recent&viewtype=card
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