[asterisk-ss7] Asterisk like a SS7 STP

Michael Mueller ss7box at gmail.com
Sat Mar 17 07:03:29 CDT 2012

On Fri, Mar 16, 2012 at 11:52 PM, Mehdi Shirazi <mahdi_shirazi at yahoo.com>wrote:

> **
> >Are you describing the combined linkset?  When I've seen things like this
> >in ITU networks, A was primary and B was alternate (used when A was not
> >available), instead of the ANSI model where A and B are peers and normally
> >used equally using a 5 bit SLS.
> Hi
> you can use one of SLS 4Bits for loadsharing between 2 Linksets to 2 STPs(you still can have 2x8 signaling links)
> if a ITU network needs 4 STPs they can use 2 bits for Linkset loadsharing or in every LX divide trunkgroups to two parts and for one part set STP1,2=>priority=1 STP3,4=priority=2
> and other part vice versa.

I stand corrected.  My experience got in the way of fact.  Q.704 Section
2.3 certainly allows combined linksets.  In ss7box the same code is used
for ITU and ANSI, so combined linksets should work, but in over ten years
it's never been required to run an ITU combined linkset.
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