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LTE: What is the advantage of using kernel level gtp encapsulation and de-capsulation for user plane at SGW and PGW ?

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Implementation of user plane processing at the user space of node is time consuming and cpu intensive. Is there any library/solution available through which GTP encapsulation/de-capsulation can be done at kernel level to reduce delay ?

posted Dec 21, 2017 by Ganesh

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I heard a new term CUPS and did some googling and came to know about this term. CUPS stands for control and user plane segregation. In LTE network, control and user planes both are used as a single node. In LTE network, SGW does buffering of any incoming data for and SGW node was doing buffering when UE in RRC-IDLE mode. I can understand control part would be same as GTP-C but how user plane of 5G network would be implemented ? Does the 3GGP standard talk about implementation of user plane ? Would it be GTP based or something else ?

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