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Is GTPU ECHO Mechanism mandatory to be enabled between 2 Peer Entities to transfer User Data in LTE?

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Is GTPU ECHO Mechanism mandatory to be enabled between 2 Peer Entities to transfer User Data in LTE and without GTPU ECHO Mechanism, will user data can be transferred to & fro after Attach is Success?

posted Nov 7, 2017 by anonymous

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1 Answer

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GTP runs over the UDP. Since UDP is a connection less protocol that's why to make sure peer is alive and receiving GTP-U packets being sent from source, a mechanism at the application level is implemented. That mechanism is nothing but exchange of GTP echo request/response messages between two GTP peers.

answer Nov 9, 2017 by Harshita
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