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Thread: Need clarifications on SVC's initiated from media gateway..
Need clarifications on SVC's initiated from media gateway..
user name
 2007-04-02 04:49:29 

  


  

    





Hi All:




 



  I need some clarifications on issues which are described

below:



 



Issue 1:




1)       Media
gateway initiates service change request, and waiting for a response.



2)       When Notify
events occur in this period how should we handle them?



      Should we send out the notify
requests to the MGC to which we have initiated the SVC? Or queue them until the
control association is established?



 



Issue 2:




 



  If we decide to transmit notify requests while waiting for
service change response, then how do we handle Notify response timeouts?



  Moreover, when we fail to establish Control association to
the Primary MGC and failover to the secondary, what should be done to the



  Notify requests that were being transmitted to the
primary? Should we abort all those transactions or should the same be retried
on the secondary?



 



 



Thanks and Regards,



Arvind  



 






  

  
  
   
     
    

  

    RE:  Need clarifications on SVC's
initiated from media gateway..
  


  

     country flaguser name
Sweden		
     2007-04-04 04:32:21
  


  

    

  


  

    

Issue 
(1)


 


You can't ;send commands from the MG such as 
notify without having a Control Association in 
place.


 


An example of a time that you may find yourself wanting 
to do this is when you have a non-empty default events 
descriptor


provisioned on a termination, and this events 
descriptor is applied when the Terminations restart at a Cold 
Boot.


 


In this case I think that you should only apply 
the termination descriptors and property defaults at the time when Control 
Association


Establishment completes, so that the termination is 
discarding events whilst the ServiceChange is in progress. 



 


If the Control Association stalls, or is explicitly 
taken away by Management Action then the MG should wait until it is 
fully re-established


or a new one established  (Service Change is 
Completed) before issuing any other commands.


 


 


Issue (2) 


 


You should not to transmit Notify Requests whilst 
the Control Association is incomplete, as this is 
illegal


 


Steve 








From: Arvind Charanyan 
[mailto:arvind.charanyanccpu.com] 
Sent: Monday, April 02, 2007 
10:49
To: megacoietf.org
Subject: [Megaco] Need 
clarifications on SVC's initiated from media gateway..







Hi All:



 


  I need some clarifications on 
issues which are described below:


 


Issue 
1:



1)       
Media gateway initiates service 
change request, and waiting for a response.


2)       
When Notify events occur in this 
period how should we handle them?


      
Should we send out the notify requests to the MGC to which we have initiated the 
SVC? Or queue them until the control association is 
established?


 


Issue 
2:



 


  If we decide to transmit 
notify requests while waiting for service change response, then how do we handle 
Notify response timeouts?


  Moreover, when we fail to 
establish Control association to the Primary MGC and failover to the secondary, 
what should be done to the


  Notify requests that were 
being transmitted to the primary? Should we abort all those transactions or 
should the same be retried on the secondary?


 


 


Thanks and 
Regards,


Arvind  



 

  

  
  
   
     
    






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