SCTP协议栈，SCTP是一种IP层的应用协议，实际上是与TCP,UDP并列的协议，SCTP传输比TCP更可靠，目前主要用于SIP类通讯协议。-SCTP, SCTP is a layer of IP Application Protocol is actually TCP, UDP tied to the agreement, SCTP transmission more reliable than TCP, the key category for SIP communication prot