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标题: 什么是F-TEID？和TEID的关系是什么？ [打印本页]

作者: amr 时间: 2013-10-13 08:49:56 标题: 什么是F-TEID？和TEID的关系是什么？

看协议有提到F-TEID，只是知道F-TEID用于控制面。一开始以为这就是代表TEID的控制面，但实际协议原文是用TEID-Cs来代表控制面的TEID。我往后翻了翻，没看到F-TEID的定义和TEID的关系。

请问F-TEID该怎么理解，以及和TEID的关系，多谢！

作者: 爱卫生 时间: 2013-10-13 20:55:52

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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