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EAS

    Frage

  • We have a user that need to have more than 10 device association for EAS. I found two throttle parameter that restricts EAS connection.

     

    EASMaxConcurrency

    The EASMaxConcurrency parameter specifies how many concurrent connections a Microsoft Exchange ActiveSync user can have against a server running Exchange 2010 at one time. A connection is held from the moment a request is received until a response is sent in its entirety to the requestor. If users attempt to make more concurrent requests than their policy allows, the new connection attempt fails. However, the existing connections remain valid. The EASMaxConcurrency parameter has a valid range from 0 through 2147483647 inclusive. The default value is 10. To indicate that the number of concurrent connections should be unthrottled (no limit), this value should be set to $null.

    EASMaxDevices

    The EASMaxDevices parameter specifies a limit to the number of Exchange ActiveSync partnerships that a user can have at one time. By default, each user can create 10 Exchange ActiveSync partnerships with their Exchange account. After users exceed the limit, they must delete one of their existing partnerships before they can create any more new partnerships. An e-mail error message describing the limitation is sent to the user when the limit is exceeded. Additionally, an event is logged in the Application log when a user exceeds the limit.

     

    Question:

    If EASMAxDevices remains as default (i.e 10 partnerships), what is the purpose of increasing EASMaxConcurrency to 50?



    Kelvin Teang

    Freitag, 1. Juni 2012 09:42

Antworten

Alle Antworten

  • That would not serve any purpose unless each device was making multiple connections at once.  The inverse would make more sense, setting EASMaxDevices to 50 and then setting EASMaxConcurrency to 20 or something like that.  Allowing a user to have more than 10 EAS partnerships, but no more than 20 concurrent connections.
    Freitag, 1. Juni 2012 14:16
  • We want to define a custom throttle policy for all these variations. E.g

    Created: "CustomThrottlePolicy"

    -          OWAMaxconcurrency 30

    -          EASMaxConcurrency 20

    -          EASMaxDevice 20

    -          RCAMaxConcurrency 100

    Is there any equivalent of EASMAxDevice for RCA and OWA? Do we need to reboot the CAS server for the new policy to take effect?


    Kelvin Teang

    Dienstag, 5. Juni 2012 02:39
  • If you haven't seen it, here is the TechNet page on throttling policies... http://technet.microsoft.com/en-us/library/dd297964.aspx

    RCA and OWA dont deal with devices so, no there are not MaxDevice options for RCA and OWA.... And you do not need to reboot, these changes usually take effect fairly quickly.

    the RCA and OWA settings have no bearing on devices that use EAS.  What exactly are you trying to accomplish?

    Dienstag, 5. Juni 2012 13:29
  • Event 2915

    I have created a test policy to overcome event 2915.  However, event 2915 still appear.

    Created: “Testthrottlingpolicy”

    -          OWAMaxconcurrency 30

    -          EASMaxConcurrency 50

    -          RCAMaxConcurrency 100

    Found most of them has delegation or using MAC.


    Kelvin Teang

    Dienstag, 5. Juni 2012 14:56
  • Could you please paste the details of your event ID here?
    Dienstag, 5. Juni 2012 15:08
  • here it goes...

    The following is output from “get-loginstatistic”,

    [PS] C:\Windows\system32>Get-LogonStatistics adeline | fl applicationid

    ApplicationId : Client=WebServices;UserAgent=MacOutlook/14.13.0.110805 (Intel Mac OS X 10.7.3);COW=Delegate

    [PS] C:\Windows\system32>Get-LogonStatistics christineh | fl applicationid

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC;COW=Delegate

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC

    [PS] C:\Windows\system32>Get-LogonStatistics ricchung | fl applicationid

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC;COW=Delegate

    ApplicationId : Client=WebServices;UserAgent=MacOutlook/14.14.0.111121 (Intel Mac OS X 10.7.3)

    ApplicationId : Client=MSExchangeRPC

    [PS] C:\Windows\system32>Get-LogonStatistics luiliting | fl applicationid

    ApplicationId : Client=CI

    ApplicationId : Client=CI

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=CI

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=CI

    ApplicationId : Client=CI

    ApplicationId : Client=CI

    ApplicationId : Client=WebServices;UserAgent=Microsoft Office/14.0 (Windows NT 5.1; Microsoft Outlook 14.0.6112; Pro)

    [PS] C:\Windows\system32>Get-LogonStatistics ngjason | fl applicationid

    ApplicationId : Client=WebServices;UserAgent=Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)

    ApplicationId : Client=CI

    ApplicationId : Client=WebServices;UserAgent=MacOutlook/14.0.0.100825 (Intel Mac OS X 10.7.3)

    ApplicationId : Client=WebServices;UserAgent=MacOutlook/14.0.0.100825 (Intel Mac OS X 10.7.3)

    ApplicationId : Client=CI

    ApplicationId : Client=CI

    [PS] C:\Windows\system32>Get-LogonStatistics haroldchan | fl applicationid

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC;COW=Delegate

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC;COW=Delegate

    [PS] C:\Windows\system32>Get-LogonStatistics punitc | fl applicationid

    ApplicationId : Client=WebServices;UserAgent=MacOutlook/14.13.0.110805 (Intel Mac OS X 10.7.3)

    [PS] C:\Windows\system32>Get-LogonStatistics sicc | fl applicationid

    ApplicationId : Client=WebServices;UserAgent=Microsoft+Office+Communicator/2.0

    ApplicationId : Client=MSExchangeRPC;COW=Delegate

    ApplicationId : Client=MSExchangeRPC;COW=Delegate

    ApplicationId : Client=MSExchangeRPC;COW=Delegate

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=MSExchangeRPC

    ApplicationId : Client=CI

    [PS] C:\Windows\system32> Get-LogonStatistics wbbean  | fl applicationid

    ApplicationId : Client=WebServices;UserAgent=Mac OS X/10.7.3 (11D50d); ExchangeWebServices/2.1 (125); Mail/5.2 (1257)

    ApplicationId : Client=WebServices;UserAgent=Mac OS X/10.7.3 (11D50d); ExchangeWebServices/2.1 (125); iCal/5.0.2 (1571)

    ApplicationId : Client=WebServices;UserAgent=Mac OS X/10.7.3 (11D50d); ExchangeWebServices/2.1 (125); Mail/5.2 (1257)

    ApplicationId : Client=WebServices;UserAgent=Mac OS X/10.7.3 (11D50d); ExchangeWebServices/2.1 (125); Mail/5.2 (1257)


    Kelvin Teang

    Dienstag, 5. Juni 2012 15:11
  • Ok, thats good, but how about the Event 2915 details, please.
    Dienstag, 5. Juni 2012 15:26
  • Here is the details...

    Process w3wp.exe 0 (PID=580).  User `Sid~domain\username~EWS~false`has gone over budget `106`times for component 'EWS' within a one minute period.  Info: `Policy:DefaultThrottlingPolicy_0b8924be-9d75-4c68-9565-62c339d8b91d, Parts:CAS:105;`.  Threshod vaue:`100`.


    Kelvin Teang

    Mittwoch, 6. Juni 2012 02:49
  • Hi Kelvin,

    Firstly, this article would help us to understand the knowledge about the throttling:
    http://technet.microsoft.com/en-us/library/dd297964.aspx 
    When using the mobile devices , such as iphone, ipad and other third party devices to sync with exchange, the devices always create many connection with exchange server, and always go over the budget.
    We could set the budget as large value, but it is not suggested.
    Or, you could set it for special user account.

    Regards!

    Gavin

    TechNet Community Support

    • Als Antwort markiert Gavin-Zhang Sonntag, 8. Juli 2012 13:54
    Mittwoch, 6. Juni 2012 10:19
  • Hi Kelvin,

    Rerfer to below:
    http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/261910b0-4b72-405b-b83b-5d583a27cb4b

     Reagrds!


    Gavin

    TechNet Community Support

    Donnerstag, 14. Juni 2012 03:43
  • Hi Gavin,

    Page not found for the link that you are provided.


    Kelvin Teang

    Donnerstag, 14. Juni 2012 04:11
    • Als Antwort markiert Gavin-Zhang Sonntag, 8. Juli 2012 13:52
    Donnerstag, 14. Juni 2012 05:23