Nokia Mobile Gateways
Question No. 1
The eNodeBs maybe interconnect TEID with each other via anX2 interface.
The eNodeB is an element of the EPC core.
The eNodeBs are connected to the EPC core via the S1 interface.
During an IMSI attach, the eNodeB selects an MME to service the UE.
The eNodeB performs the compression and encryption of the user data stream.