Jashim Uddin ATM
IMS based NGN uses TCP or UDP as transport layer protocol to carry multimedia data across different networks and even to carry signal among core components such as Call/Session Control Functions (CSCF). Due to using of TCP or UDP, IMS based NGN is facing TCP’s SYN Denial of Service (DoS) attack, Head of Line (HOL) blocking crisis. To overcome these troubles the SCTP with its features can be used in IMS based NGN.
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