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Critical medical equipment - Draeger Medical

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  • 1.  Critical medical equipment - Draeger Medical

    Posted Feb 22, 2024 06:15 PM

    I work in a cardiac hospital. We use the Draeger Medical Infinity telemetry devices which provides continuous surveillance of telemetry patients using the hospital's existing WiFi .

    These only work at 2.4 and we are having continuous problems with the devices. 

    They randomly drop of the WIFI network and then randomly reconnect.

    All of the  Draeger Medical Infinity telemetry devices  have been given a static IP address.

    So my very first question, is this best practise or not?

    If not, please provide a explanation as to why not.

    Second question. Lets assume the Aruba WIFI network is perfect. Perfect for all devices, except (the Draeger Medical Infinity telemetry devices which drop of the WIFI network) what would you as a qualified Aruba engineer look at in investigating the problems?

    Third question, has any one else has issues with Draeger Medical Infinity telemetry devices ?

    Ironically before going to Aruba, we were running an Alcatel WIFI network and we were having the exact same issues.



  • 2.  RE: Critical medical equipment - Draeger Medical

    Posted Feb 23, 2024 03:25 AM

    Is your Aruba network controller based or controllerless [ Instant based solution ]?

    Use this command to see what the client is doing, this shows the mobility trail and some more information

    https://www.arubanetworks.com/techdocs/CLI-Bank/Content/aos8/sh-ap-clnt-trial.htm

    I would check the logs to see what the flow is too,

    show log all | include <mac of the device> - check to see if you find any discrepancies.

    show user mac <mac of the device> - to get more details on the client.

    If it disconnects, reboot the device [ if you have a spare device to test ] , As it starts connecting, check 

    show station-table | include <mac of the device> - It might not stay up here for long 

    show user-table | include <mac of the device> - it should show up here

    show datapath session table | include <IP address of the device>

    use this command to get more detailed wireless stats, check to see if the frame dropped counters are high

    https://www.arubanetworks.com/techdocs/CLI-Bank/Content/aos8/sh-ap-dbg-clt-st.htm

    This should give you a good start to isolate the issue.



    ------------------------------
    /AJ
    ------------------------------



  • 3.  RE: Critical medical equipment - Draeger Medical

    EMPLOYEE
    Posted Feb 23, 2024 08:37 AM

    Hi,

    i have done the certification of Aruba Gear with Draeger Equipment. I have certified several version of codes and several AP types with Draeger.

    Can you give more insights like:

    •  which version of code are you using?
      what AP types are you using?
    • do you have contact to an technical Aruba representive (SE, CSE)?

    Infinity is using Multicast which is very challenging.
    Is it a controller environment, than this output could be from interest

    show datapath ip-mcast station




  • 4.  RE: Critical medical equipment - Draeger Medical

    Posted Feb 23, 2024 06:38 PM

    Hi here are the details you requested



    Model
    Aruba7210
    Boot partition
    ArubaOS 8.10.0.9 LSR_88493

    AP Model = Aruba 515

    When you say

    Infinity is using Multicast which is very challenging

    Can you please expand and give me a good explanation.

    Surprisingly what no one has answered so far was my first question, that being, is it good practice to give the Draeger units a static IP or not?




  • 5.  RE: Critical medical equipment - Draeger Medical

    Posted Feb 25, 2024 08:45 PM

     Static IPs and wireless do not work well together...




  • 6.  RE: Critical medical equipment - Draeger Medical

    EMPLOYEE
    Posted Feb 26, 2024 07:27 AM

    That is a certified combination.

    Did you enabled IGMP Snooping on the VLAN interface?
    disable wmm-uapsd on the Infinity SSID

    Do you have a dedicated SSID for the Infinities?