View source for ISUP:General guidelines for designing highly redundant application (blade failure)

#The [[SS7]] protocol protects the overall network from link (trunk) failure by automatically re-routing traffic to other links.  This is done automatically by the [[MTP3 Layer|MTP3 layer]] of the stack providing the proper physical setup (multiple links and optionally links toward multiple STPs.
#In case of a TB640 blade failure (software, hardware or chassis), the Tmedia SS7 architecture provides a redundant stack on another blade providing the proper setup and configuration. In this way, the call control application only has to access the stand-by board and continue processing as if nothing had happened. [This option is not available to the end-user yet].