NSA 3x/3a gtp-teid changes after moving

5G NR
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1

Hi Experts,
Do you know someone, in Nsa 3x/3a gtp-teid after moving to nsa should remained the same like for default bearer on LTE or it should be changed?

2

Your EPS bearer and DRB ID changed after SCG addition.

3

In case of SN terminated split bearer (Which is most of the time NSA 3X case) GTP-TEID will change toward gNB.
But it can be different per EPS-bearer.
Like for EPS-Bearer 7(QCI-1) old GTP-TEID toward eNB can be used.
For EPS-Bearer 5(QCI-9 default bearer) new TEID toward gNB can be used.
This is my theoretical understanding. Someone can correct it.

4

Are you sure regarding changing of DRB identity? When is this change happening, during 5G rrcConnReconf?

5

Core log I checked in message modify eps bearer message.

6

Ok, so it should be changed.