Investigation of Signalling Flow Transfer Processes based on SCTP Protocol

摘要

Real-time information exchange services need to establish communication session. By this reason in PSTN networks used in alarm systems, the main of which is the SS7 (Signalling System Number 7). In the creation of NGN (Next Generation Network) it is necessary to transfer of SS7 information over Internet Protocol (IP) network. This is why SIGTRAN (Signalling Transport Protocol Stack for PSTN signalling over IP) protocol [1] was created, to realize the stream control transmission protocols (SCTP) [2] and adaptation protocols functions. SCTP is responsible for the reliable transfer of signalling information over an IP network and to manage signalling by traffic governance, ensure signalling information. Functions of protocol integration include signalling information from the signalling protocols, using the SCTP services. These protocols are responsible for data segmentation and pocketing, protection of consumers' simulation, transferring information sense changing and other functions.