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How often the IP address and the TEID are repeated in LTE network?

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We will identify each tunnel using combination of source-TEID , dest-TEID and source IP address, dest IP address. How often the IP address and the TEID are repeated? is this just unique for each tunnel of UE or unique within the cell?

posted Sep 16, 2016 by Sneha Maganahalli

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1 Answer

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Tunnel Identity will be unique between two peers of having GTP-U based interface. If eNodeB supports multiple IP addresses for data plane then TEID will be unique with the combination of one IP address. As such there is no relation of TEID uniqueness with the cell or UE.

There are number of things which considered by designing. So it depends where you are running the eNodeB software. If you are running eNodeB software in data center environment (cloud RAN), things will be different when eNodeB software runs in stand alone system.

answer Sep 17, 2016 by Harshita
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