TelecomStudy18

           Based on the Juniper M320 or M120 router, the EPG supports Physical Interface Cards (PICs) of the following types: ·          EPG services PIC : All EPG application software entities run on the EPG services PIC. These entities consist of Globe Session Controller (GSC), SGW Session Controller (SSC) and PGW Session Controller (PSC) for Control Plane, and Packet Processor (PP) and L2TP Packet Processor (TPP) for User Plane. The EPG services PIC is PB-GGSN3 Services PIC. ·          Network interface PIC: The network interface PIC provides 1GE or 10GE Ethernet connectivity for the EPG. ·          Standard services PIC : the standard services PIC runs platform-generic services, such as encapsulation and decapsulation of user payload into Generic Routing Encapsulation (GRE) or IPsec tunnels. For EPG on Juniper, the followin...

The EPG combines the GGSN, SGW and PGW functions in one physical node. In addition, the evolved platform adaptation layer supports the EPG application running on both operating systems: Junos OS (the OS of Juniper M series routers) and IPOS (the OS of Smart Services Router),  The EPG is available on different hardware platforms: ·          Juniper (M320, M120) ·          Smart Services Router (SSR 8020) The EPG based on Juniper hardware is simply called EPG on Juniper and the EPG based on SSR hardware is respectively called EPG on SSR. In the EIN documents, these terms are used to distinguish between these hardware platforms. If the hardware platform does not matter, the EPG term covers all possible EPG configurations. The EPG on SSR has an increased capacity, up to 10 times greater than the EPG on Juniper. Therefore, the EPG on SSR has a big impact on the PS core network, and thi...

The PS core network consists of two parts, the traditional General Packet Radio Service (GPRS) core network and the new Evolved Packet System (EPS) core network. The PS core network connects mobile subscribers to Packet Data Networks (PDNs) such as the Internet, corporate networks or operator services networks.  a functional overview of the PS core network. Logical entities and interfaces are shown in black and form a 2G/3G network, while the blue boxes and lines in Figure  show the LTE/EPC related parts. The LTE/EPC network can be regarded as an extension and evolution of existing 2G/3G networks. From a node implementation perspective, there is no strict border between the two networks. The corresponding logical entities of GPRS and EPS networks can be deployed concurrently in Ericsson PS core nodes, such as the SGSN-MME and EPG; these are marked in red. In addition, Ericsson GPRS nodes can be upgraded with EPC functionality by software only. Network evolution i...