Mobility Management Entity Overview
Network Deployment and Interfaces â–€
Cisco ASR 5000 Series Product Overview â–„
Gr Interface: This is the interface used by the MME to communicate with the Home Location Register (HLR)
via a eGTP-to-MAP (Mobile Application Part) protocol convertor. This interface is used for network initiated
UE contexts.
For network initiated UE contexts, the MME will communicate with the protocol convertor using eGTP. The
convertor, in turn, will communicate with the HLR using MAP over Signalling System 7 (SS7).
One or more Gr interfaces can be configured per system context.
Note: This interface will be supported in furture release.
Important: MME Software also supports additional interfaces. For more information on additional interfaces,
refer Features and Functionality - Licensed Enhanced Feature Software section.