Re: SG M2UA handling of ASP switchover
Sunita Bhagwat <bhagwat <at> ascend.com>
2005-04-06 14:42:57 GMT
Thanks for the quick response. My reply inline..
On Wed, 2005-04-06 at 19:35, Brian F. G. Bidulock wrote:
> Sunita Bhagwat wrote: (Wed, 06 Apr 2005 19:04:08)
> > Hi,
> > In case of an ASP switchover scenario in an M2UA redundant-ASP setup, I
> > am facing the below issue -
> > -(Continue reading)
1- SG is configured for redundant ASPs (ASP1 and ASP2), ASP1 is the
> > Active ASP.
> > - 2- ASP1 goes Down, ASP2 takes over; it sends a Data Retrieval request
> > to SG to retrieve the buffers.
> I suppose you mean that the SG sends alternate ASP active and starts
> routing traffic to ASP2.
No, AS is configured in an override mode, so SG would receive the
ASP-Active msg from ASP2.
> Why does ASP2 send a Data Retrieval request?
I presume since both the ASPs would correspond to different MTP3 layers
at the MGC, this is a case of MTP3 changeover? The dying MTP3 sends a
Release Request, and the new one is sending the Data Retrieval request.