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no bss info at Access Point

  • 1.  no bss info at Access Point

    Posted 09-13-2017 08:38
    One on th Ap's has no BSS info after losing
    connection with the controller.

    AP is approved and Wlan’s are connected.

    Whats wrong ?



  • 2.  RE: no bss info at Access Point

    Posted 09-13-2017 08:42
    Hi Johan,

    Is the AP local or foreign to the controller?

    - Sam


  • 3.  RE: no bss info at Access Point

    Posted 09-13-2017 13:25
    Unfortunately you can't trust the green AP in the "AP Availability" report in case the AP is connected via VPN tunnel / tunnel with lower MTU.

    The only thing that shows the correct info in my experience is the controller log.

    If the tunnel MTU is not set correctly the last message (bottom to top) during the AP authentication is missing in that case.

    So if you run into an issue with a remote AP always check whether you'd find the "blacklist success..." message in the log.





  • 4.  RE: no bss info at Access Point

    Posted 09-14-2017 04:54
    Dear Extreme Networks Employees,

    in our setup almost every AP is connected over WAN/VPN.
    when deploying new aps, the get the default settings provided in AP->Global Configuration
    but there is no Global Setting for Tunnel MTU
    so this setting has to be done on every AP manually

    is it possible to make a global configuraton for Tunnel MTU?


  • 5.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    Hi,

    From the screenshot i see no channel and power selected for the AP.
    Is it a new AP?

    Regards,
    Nathiya M


  • 6.  RE: no bss info at Access Point



  • 7.  RE: no bss info at Access Point

    Posted 09-13-2017 08:42
    Local


  • 8.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    No it isn't a new one. It was working fine till it lost the connection.



  • 9.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    is the AP green in the "AP availabilty" report


  • 10.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    Yes it is.


  • 11.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    is the AP on the same location/subnet as the controller or remote via i.e. VPN


  • 12.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    The ap is on a remote site via VPN


  • 13.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    Johan,

    I'd advise getting a case open with GTAC so that the AP config logs etc can be looked at.

    - Sam


  • 14.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    What's the MTU that you've set on the AP.


  • 15.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    The MTU is 1500


  • 16.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    try to set a lower mtu in ap static configuration e.g. 1300
    the wassp tunnel from ap to controller has DF bit set, which makes problems in WAN/VPN environments


  • 17.  RE: no bss info at Access Point

    Posted 09-13-2017 08:47
    That was the solution.


  • 18.  RE: no bss info at Access Point

    Posted 09-13-2017 13:25
    when looking at the report Wireless AP Availability
    have a look at the uptime displayed for the AP
    if there is a uptime displayed, the tunnel from AP to controller should be up


  • 19.  RE: no bss info at Access Point

    Posted 09-14-2017 04:54
    Hi Anton,

    If you go to AP on the top menu in the Gui, then APs from the side menu > select all APs to be configured > actions > multi-edit > scroll down to static configuration. There you will find Tunnel MTU.



    Hope this helps.

    - Sam


  • 20.  RE: no bss info at Access Point

    Posted 09-14-2017 04:54
    Thank you Sam, that helps so I don't need to set it an every ap, but it is an additional step. if the tunnel MTU would be a global setting then there would be no additional step.
    BR Anton