MME与MME之间的接口是S10控制面接口，采用了GTPv2协议，负责

The interface between MME and MME is the S10 control plane interface, which uses the GTPv2 protocol and is responsible for information transmission between MMEs; the interface with the SGW is the S11 interface, and the S11 interface also uses the GTPv2 control plane GTPv2-C. The CTP-C is responsible for the tunneling encapsulation of signaling messages between MME and SGW; the interface with HSS is the S6A interface, using Diameter protocol, responsible for user access authentication, inserting user subscription data; the interface with ENB is S1- C interface,

The interface between MME and MME is the S10 control surface interface, which adopts the GTPv2 protocol, which is responsible for the transmission of information between MME, the interface with SGW is the S11 interface, and the S11 interface also uses GTPv2's control surface GTPv2-C, wherein CTP-CmmME is responsible for signaling message tunneling encapsulation, and the interface between HSS is S6A interface, which is responsible for user access authentication and insertion of user contract data The interface with ENB is the S1-C interface,

The interface between Mme and Mme is S10 control plane interface, which adopts gtpv2 protocol and is responsible for information transmission between Mme; the interface between Mme and SGW is S11 interface, which also adopts gtpv2-c control plane of gtpv2, in which ctp-c is responsible for signaling message tunneling encapsulation of MME and SGW; the interface between Mme and HSS is S6a interface, which adopts diameter protocol and is responsible for user access authentication and user insertion The interface with ENB is s1-c interface,<br>