你可以在GTPV2的规范TS29.274中找到答案,TEID的全称实际上就是F-TEID(Fully Qualified
TEID),这里的F-TEID不光是可用于控制面,也可用于用户面的接口。具体来说,可以用到以下34个EPC相关的接口。 0: S1-U eNodeB GTP-U interface 1: S1-U SGW GTP-U interface 2: S12 RNCGTP-U interface 3: S12 SGWGTP-U interface 4: S5/S8SGW GTP-U interface 5: S5/S8PGW GTP-U interface 6: S5/S8SGW GTP-C interface 7: S5/S8PGW GTP-C interface 8: S5/S8SGW PMIPv6 interface (the 32 bit GRE key is encoded in 32 bit TEID field andsince alternate CoA is not used the control plane and user plane addresses arethe same for PMIPv6) 9: S5/S8PGW PMIPv6 interface (the 32 bit GRE key is encoded in 32 bit TEID field andthe control plane and user plane addresses are the same for PMIPv6) 10: S11MME GTP-C interface 11: S11/S4SGW GTP-C interface 12: S10MME GTP-C interface 13: S3MME GTP-C interface 14: S3SGSN GTP-C interface 15: S4SGSN GTP-U interface 16: S4SGW GTP-U interface 17: S4SGSN GTP-C interface 18: S16SGSN GTP-C interface 19: eNodeB GTP-U interface for DL dataforwarding 20: eNodeB GTP-U interface for UL dataforwarding 21: RNC GTP-U interface for dataforwarding 22: SGSN GTP-U interface for dataforwarding 23: SGW GTP-U interface for DL dataforwarding 24: Sm MBMS GW GTP-C interface 25: Sn MBMS GW GTP-C interface 26: Sm MME GTP-C interface 27: Sn SGSN GTP-C interface 28: SGW GTP-Uinterface for UL data forwarding 29: Sn SGSNGTP-U interface 30: S2b ePDGGTP-C interface 31: S2b-U ePDG GTP-U interface 32: S2b PGWGTP-C interface 33: S2b-U PGWGTP-U interface
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