High Availability:Software:Signaling Stack:SS7
From TBwiki
SS7 has intrinsic high availability features. TelcoBridges MTP3 stack is responsible for most of the redundancy and Load Sharing feature of SS7.
TelcoBridges SS7 stack has a multitude of redundancy mechanism that can fortify a TMG7800 system against failure.
The MTP3 stack is distributed through all the Tdev hardware of the system and will load share the traffic through the MTP3 linksets and MTP2 links.To improve reliability of the system, TelcoBridges recommend to add MTP2 links from different Tdev devices to a MTP3 linksets. If a unit is lost, the MTP3 linksets will still be available to use.
Here is an example:
