The Evolved Packet Core portfolio includes SGSN/MME* and Mobile Packet Gateway – software upgrades of the existing SGSN and GGSN. PDF | SGSN and GGSN are the two core network elements of the general packet radio service which enables Ahmad Ali Habeeb at Ericsson. GGSN communicates to SGSN and when it receives data variables. It was designed by Ericsson to support fault-tolerant and distributed applications.
|Published (Last):||15 September 2013|
|PDF File Size:||8.36 Mb|
|ePub File Size:||13.91 Mb|
|Price:||Free* [*Free Regsitration Required]|
PS Core Engineer (Back Office Ericsson SGSN/MME, GGSN/MPG, iDNS, SAPC)
The cloud manager also provides reliability and failover by restarting a Sfsn for a particular control plane entity or function if any of the 3G PC control plane entities should crash. The architecture of the core network can change when new services and features are introduced. The process for modifying a session is illustrated in FIG.
QoS is necessary because, unlike fixed networks, the wireless link is severely constrained in how much bandwidth it can provide to the terminal, so the bandwidth needs to be managed more tightly than in fixed networks in order to provide the user with acceptable quality of service.
This allows the packet processing pipeline to mix and match particular rules and actions without causing a combinatorial explosion in the table size.
Netscout Video Resource Center. The standard 3G PC architecture assumes a standard routed IP network for transport on top of which the mobile network entities and protocols are implemented. If the lower four bits are 1, the type and flags field should be ignored, while if the upper four bits are 1, the TEID should be ignored. The OpenFlow signaling, indicated by the solid lines and arrowssets up flow rules and actions on the switches and gateways within the 3G PC for differential routing. A received packet is compared against each of the flow tables Flow generation from second level controller to first level controller to managed switching element.
This process is performed for each received packet. GTP enables end user devices e. The parsing process matches a packet header by initializing a set of match fields Block and checking for the presence of a set of different header types.
ggsm Tunnel endpoint device, communication device, communication system, communication method and program. Method and cloud computing system for implementing a 3g packet core in a cloud computer with openflow data and control planes.
Gateway GPRS Support Node – Wikipedia
In addition to the flow table fields, an object is required to encode the encapsulation of the virtual port TEID hash table entry.
These packets require specialized handling.
The following actions push a control plane VLAN tag onto the packet and forward it to the cloud for processing by the relevant control plane entity. The method of claim 5further comprising the dgsn of configuring a switch in a new route of the GTP tunnel, via the control plane protocol, to forward packets of the subscriber session according to the GTP tunnel.
Data forwarding in a mobile communications network system with centralized gateway apparatus controlling distributed gateway elements. In other instances, well-known circuits, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.
Communication system and method for providing access to sgxn external network to the wireless terminal.
PS Core Engineer (Back Office Ericsson SGSN/MME, GGSN/MPG, iDNS, SAPC) on
Signal processing apparatus and signal processing method thereof for implementing a broadcast or a multicast communication. The switch also writes an entry in the TEID hash table containing the tunnel header fields for the packet.
The GTP routing function can be performed by a gateway switch in addition to its gateway function, or it can be performed by another switch that lacks a gateway function, gggsn the distributed EPC switching fabric. If there is a match, then an update to the action set is made along with counters, packet or match set fields and meta data Block Similarly, the cloud manager may detect the failure or the underutilization of one of the plurality gysn control plane modules Block Only those parts of the field in which the mask has a 1 value are matched.
The disadvantages of the prior art are that prior implementations of the 3G packet core use a pool of servers that are dedicated sgsh a specific sgen entity, such as a server pool that is dedicated to hosting a SGSN.
Flow table issuing method and system in software-defined network, open flow controller and open flow switch. This field may be empty if the bearer is a default bearer with best effort QoS, but will contain nonzero values if the bearer QoS is more than best effort. The cloud manager sgn the central processor unit CPU utilization of the 3G PC control plane entities and the control plane traffic between the 3G PC control plane entities within the cloud.
This new control plane module or instance can then share the load of existing control plane modules or instances of the eriscson type thereby alleviating the load on these modules dynamically. Communication network, data transmission and reception method of a communication network.
Instead of using L2 routing and L3 internal gateway protocols to distribute IP routing and managing Ethernet and IP routing as a collection of distributed control entities, L2 and L3 routing management is centralized in a cloud facility and the routing is controlled from the cloud facility using the OpenFlow protocol.
Web services applications consist of a load balancing ggsm end that dispatches requests to a pool of Web servers. They have the following common header fields: