WHY MME USES UDP AS TRANSPORT PROTOCOL OVER SCTP TOWARDS SGW
Not sure if it is true that UDP is over SCTP, as far as I know it is GTPC-v2 over UDP over IP.
(Assuming you are correct then reason may be because SCTP is already connection oriented and another connection oriented (TCP) is not required)
I just want to add one more point that GTP protocol has "echo request/response messages" to check the health of link. I meant to say that both the nodes having GTP based communication they periodically checks link connectivity since transport is not connection oriented which immediately notify to application if connection is not available.
Out of three prominent advance transport protocols (TCP, UDP and SCTP) which is the best to use and why should i use that protocol ?
I recently come across advantages of SCTP over TCP and In telecommunication most of the real time interfaces require SCTP connection example eNB to MME.
But MME to SGW and SGW to PGW GTP-C is used as signaling protocol. Why SCTP not being used? What is the advantage of using GTP-C?
What reasoning could be behind not using the TCP/SCTP for GTPv2 protocol ?
