MGC Takeover; RE: Handoff initiated by new MGC

Raphael,

we've studied that potential MGC changeover scenario, too.
We've called it "MGC Takeover".

See 

H.248.1 Version 4 - MGC Takeover
http://ftp3.itu.ch/av-arch/avc-site/2005-2008/0801_Seo/AVD-3213.zip

or
http://www.ietf.org/mail-archive/web/megaco/current/msg07739.html


There might be good reasons for such a scenario, like a deadlock
situation on MGC level.
Or: the optimization of service/network availability performance.

-Albrecht

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Raphael Tryster
> Sent: Mittwoch, 6. August 2008 07:43
> To: [email protected]
> Subject: [Megaco] Handoff initiated by new MGC
> 
> 
>  
> Suppose that an MG has two MGCs configured as primary and 
> secondary, and currently it has a control association with 
> the primary MGC.  The two MGCs communicate with each other in 
> a way that allows each to detect the failure of the other 
> quickly, much more quickly than the MG could detect it by 
> retransmission timeout.  It would be efficient if the 
> secondary MGC, on detecting failure of the primary, could 
> send SC Handoff to the MG, instructing it "talk to me now".  
> But I believe Megaco requires the MG to reject such a message 
> as unauthorized.  This is really a failover scenario, but 
> Megaco doesn't allow it on the MGC side.
> 
> Am I overlooking something in Megaco that would allow a fast 
> handoff / failover?
> 
> Raphael Tryster
> **************************************************************
> ********************************
> IMPORTANT: The contents of this email and any attachments are 
> confidential. They are intended for the named recipient(s) only.
> If you have received this email in error, please notify the 
> system manager or the sender immediately and do not disclose 
> the contents to anyone or make copies thereof.
> *** eSafe scanned this email for viruses, vandals, and 
> malicious content. ***
> **************************************************************
> ********************************
> 
> _______________________________________________
> Megaco mailing list
> [email protected]
> https://www.ietf.org/mailman/listinfo/megaco
>