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What is direct tunneling in LTE and when it is used?

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What is direct tunneling in LTE and when it is used?
posted Dec 17, 2014 by anonymous

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1 Answer

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Direct tunnel is established between source eNB and target eNB using X2 interface for data forwarding during Handover.

answer Dec 17, 2014 by Veer Pal Singh Yadav
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GTP tunnel id is a 32-bit long value over one IP address combination. Suppose there are two nodes A and B which has IP addresses X and Y respectively. Is it possible when first GTP tunnel id range gets exhausted then both the nodes starts using different IP address combination and again GTP tunnel id range can be re-used ? If it is impossible then what could be the reason ?

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