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New Wireless Setup - AP515 and AP514

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  • 1.  New Wireless Setup - AP515 and AP514

    Posted 20 days ago
    Hello everyone,
    I am not sure if anyone has run into this before. Our issue with our new Aruba Wireless Setup is that our through put speeds are slow.
    We have good signal strength, but slow speeds. I contacted Aruba support and they said my speeds are good (150mbps)
    We cannot get past 173mbps on any of the new APs. I checked another post that talked about LLDP and i have verified in all switches and it is enabled.
    Our radio power is at 21dbe and firmware running on 8.7.1.6_81786.
    We have a total of 5 SSIDs setup in Aruba Central, does not make a difference which SSID i connect, i still get same speeds.
    On legacy devices, such as Zebra VH10 Mobile Computers, our data rate speeds is about 50mbps causing frustration on users.

    Is there something i should be looking in Aruba Central's setting to increase my network speeds on my APs?

    Thanks,
    Abiel Valdez

    ------------------------------
    Abiel Valdez
    ------------------------------


  • 2.  RE: New Wireless Setup - AP515 and AP514

    EMPLOYEE
    Posted 20 days ago
    The more SSIDs you add, the more your performance will decrease.  Try to reduce the number of SSIDs so see if your performance improves.

    ------------------------------
    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
    ------------------------------



  • 3.  RE: New Wireless Setup - AP515 and AP514

    Posted 20 days ago

    Hi
    Thank you for replying. 

    I have now 4 SSIDs.
    3 of the 4 were setup originally by the company who setup the VC and all the APs. Those 3 SSIDs i can only seem to get 173mbps data transfer rate.
    I then created a new SSID with identical settings to the other 3 and getting 286mbps speeds. I know there is a misconfiguration somewhere, just need to know where exactly.




  • 4.  RE: New Wireless Setup - AP515 and AP514

    MVP EXPERT
    Posted 20 days ago
    Can you install https://www.tethabyte.com/download and send a txt export of the results. When see your SSID rightclick to export as txt.

    Please note that 173Mbps is the max. modulation when using 20MHz width channels by two spatial streams.

    Interesting in a export like this:
    BSSID: xx:xx:xx:xx:xx:xx
    SSID: HomeLAB-Corp
    Annotation: 
    Vendor: Aruba, a Hewlett Packard Enterprise Company
    AP Name: 
    AP Model: 
    RSSI: -38 dBm
    Noise: -95 dBm
    SNR: 57 dB
    Signal: 94 %
    Frequency: 5520 MHz
    Band: 5 GHz
    Channel: 104
    Channel Width: 80 MHz
    Country: NL
    Beacon Period: 102,4 ms
    Min MCS Rate: 36 Mbps
    Max MCS Rate: 1201 Mbps
    Basic Rate Set: 24/36/48/54
    Supported Rates: 24 (B), 36, 48, 54
    BSS Type: Infrastructure
    Type 802.11: ax
    WiFi Generation: 6
    Amendments: d  e h i r v
    Streams: 2
    Stations: 6
    Channel Utilization: 2 %
    Security: WPA2 Personal
    Group Cipher: AES
    Pairwise Cipher: AES
    AKM Suite: PSK
    Min Power: 
    Max Power: 
    Mac Age: 14-5-2019 00:00:00
    First Seen: 14-11-2022 22:01:56
    Last Seen: 14-11-2022 22:04:09
    ​



    ------------------------------
    Marcel Koedijk | MVP Expert 2022 | ACEP | ACMP | ACCP | ACDP | Ekahau ECSE | Not an HPE Employee | Opinions are my own
    ------------------------------



  • 5.  RE: New Wireless Setup - AP515 and AP514

    Posted 20 days ago
    BSSID: 6C:C4:9F:C7:D9:81
    SSID: RWC-CORP
    Annotation:
    Vendor:
    AP Name: AP-62
    AP Model: 515
    RSSI: -44 dBm
    Noise: -101 dBm
    SNR: 57 dB
    Signal: 91 %
    Frequency: 2412 MHz
    Band: 2.4 GHz
    Channel: 1
    Channel Width: 20 MHz
    Country:
    Beacon Period: 102.4 ms
    Min MCS Rate: 7.2 Mbps
    Max MCS Rate: 144.4 Mbps
    Basic Rate Set: 6/9
    Supported Rates: 6 (B), 9
    BSS Type: Infrastructure
    Type 802.11: n
    WiFi Generation: 4
    Amendments: e i r v
    Streams: 2
    Stations: 0
    Channel Utilization: 39 %
    Security: WPA2 Enterprise
    Group Cipher: AES
    Pairwise Cipher: AES
    AKM Suite: 802.1X
    Min Power:
    Max Power:
    Mac Age: 1/1/1900 12:00:00 AM
    First Seen: 11/14/2022 4:36:13 PM
    Last Seen: 11/14/2022 4:37:44 PM

    BSSID: 6C:C4:9F:C7:D9:91
    SSID: RWC-CORP
    Annotation:
    Vendor:
    AP Name:
    AP Model:
    RSSI: -56 dBm
    Noise: -101 dBm
    SNR: 45 dB
    Signal: 85 %
    Frequency: 5180 MHz
    Band: 5 GHz
    Channel: 36
    Channel Width: 20 MHz
    Country:
    Beacon Period: 102.4 ms
    Min MCS Rate: 7.2 Mbps
    Max MCS Rate: 346.8 Mbps
    Basic Rate Set: 12/18
    Supported Rates: 12 (B), 18
    BSS Type: Infrastructure
    Type 802.11: ac
    WiFi Generation: 5
    Amendments: e i r v
    Streams: 4
    Stations: 3
    Channel Utilization: 7 %
    Security: WPA2 Enterprise
    Group Cipher: AES
    Pairwise Cipher: AES
    AKM Suite: 802.1X
    Min Power:
    Max Power:
    Mac Age: 1/1/1900 12:00:00 AM
    First Seen: 11/14/2022 4:36:13 PM
    Last Seen: 11/14/2022 4:39:42 PM


  • 6.  RE: New Wireless Setup - AP515 and AP514

    MVP EXPERT
    Posted 19 days ago
    Hi Abiel,

    At your 2,4GHz channel:
    • Good signal
    • 20Mhz is ok
    • Max MCS Rate: 144.4 Mbps / 50% = max speedtest real troughput around 72Mbps
    • Put basic rate at minimum 11Mbps to optimize roaming and avoid very old clients
    • Amendments, enable 802.11k 802.11.v 802.11r
    • Channel Utilization 39% quite high with no active stations measured, keep it at max. 50%, check for interference.
    • Put tx power at 6dBm to 9 dBm for office deployments
    • Distance between AP max. 10-15meter
    At your 5Ghz channel:
    • Good signal
    • 20Mhz is ok but lower datarate then 40Mhz, if co-channel interfernce is low go for max. 40Mhz at 5Ghz for higer troughput
    • Max Modulation MCS Rate: 346.8 Mbps / 50% = max speedtest real troughput around 173Mbps
    • Put basic rate at minimum 12 or 24 Mbps to optimize roaming
    • Amendments, enable 802.11k 802.11.v 802.11r
    • Channel Utiluzation 7% looks fine to me, keep it at max. 50%
    • Put tx power at 9dBm to 15 dBm for office deployments
    • Distance between AP max. 10-15meter
    Because client-driver see the ssid "RWC-CORP" at 2.4GHz and 5GHz the driver have to make a choice and can pick the wrong radio. Beter to disable 2,4GHz and if you can't seperate eachother to ssid "RWC-Corp-2.4" and "RWC-Corp-5" can be some options to decide.

    Check you legacy Zebra VH10 Mobile Computers if they support 5GHz and what are the device capabilities. Most likely they only support only 2,4Ghz or not all channels at 5GHz. On what radio are they connected? Based on above finding at 2,4Ghz it wil not go faster than around 72Mbps at 2,4Ghz.

    Note that my recommendation are based on basic office deployment, warehouse can have some different values what best can be designed by your wireless lan survey engineer.

    Hope this helps you.


    ------------------------------
    Marcel Koedijk | MVP Expert 2022 | ACEP | ACMP | ACCP | ACDP | Ekahau ECSE | Not an HPE Employee | Opinions are my own
    ------------------------------



  • 7.  RE: New Wireless Setup - AP515 and AP514

    Posted 19 days ago
    Good morning MKK
    Thank you so much for that information, we will look into that ASAP and report back.


  • 8.  RE: New Wireless Setup - AP515 and AP514

    MVP EXPERT
    Posted 20 days ago
    Hi Abiel,

    Did you check the MSC index to see what your max. modulation rate should be?
    https://netbeez.net/blog/what-is-mcs-index/

    Please note that your reall throughput is rougly 50-60% of the modulation rate dua overhead, interfernece and re-transmissions.

    Check your RF settings on channelbandwidth and understand the spatial streams of your AP and client.

    Max. 4 SSIDs is a design recommendation to avoid to many management beacons in the the air that occupied airtime. 5 SSID shouldn't be a big issue many times but keep your SSID count low as possible. Mostly 5 SSID isn't necessary in modern designs.

    Also your at 21dBm tx-power which is 125mW and thats very high. Please lower your tx-power to around 15-17dBM which is 32mW-50mW to avoid interference between APs and get the mobile clients and APs at the same receive and transmit power.

    When your not familiar with WiFi design please contact your local Aruba Partner to assist you for best results.

    ------------------------------
    Marcel Koedijk | MVP Expert 2022 | ACEP | ACMP | ACCP | ACDP | Ekahau ECSE | Not an HPE Employee | Opinions are my own
    ------------------------------



  • 9.  RE: New Wireless Setup - AP515 and AP514

    Posted 20 days ago
    Hi
    Thanks for replying, all those settings were setup by the company who setup the APs. They are an Aruba Partner company, ill forward that site you provided for them to reference on.