Optimization of SCTP parameters of SIGTRAN protocol

SIGTRAN (Signaling Transport) is the name for a family of protocols used to transfer SS7 (Signaling System 7) signaling messages over the Internet. This family consists of: standard IP, common signaling transport protocol SCTP (Stream Control Transport Protocol) and adaptive protocol that allows work with other protocols. Signalling messages are susceptible to losses and delay, so one of the most important requests that has to be respected is the transmission paths downtime convergence speed. The work is focused on the failover time in the SIGTRAN network and under which conditions the failover time is compliant to the SS7 standards for signaling messages. It has been also analysed how the failover time can be changed by tweaking certain SCTP parameters (RTO.MIN, RTO.MAX, PMR).