NDLI: Moving the mobile Evolved Packet Core to the cloud

Content Provider	IEEE Xplore Digital Library
Author	Kempf, J. Johansson, B. Pettersson, S. Luning, H. Nilsson, T.
Copyright Year	2012
Description	Author affiliation: Ericsson PDU/PC, Goteborg, Sweden (Johansson, B.; Pettersson, S.; Luning, H.; Nilsson, T.) \|\| Packet Technologies Research, Ericsson Research Silicon Valley, San Jose, CA, USA (Kempf, J.)
Abstract	In this paper, we describe an evolution of the mobile Evolved Packet Core (EPC) utilizing Software Defined Networking (SDN) that allows the EPC control plane to be moved into a data center. The EPC is a mobile aggregation network standardized by 3GPP for deployment of fixed and 4G mobile broadband services, having interoperability features for 3G and 2G mobile services. While mobile networks already deploy a considerable amount of software control, the ability of OpenFlow to decouple the control and data planes for IP routing provides the opportunity to simplify the configuration and maintenance of mobile aggregation networks by eliminating the distributed IP routing control plane. We extend OpenFlow 1.2 with two vendor extensions, one defining virtual ports to allow encapsulation and decapsulation and another to allow flow routing using the GTP Tunnel Endpoint Identifier (TEID). The result enables an architecture where the GTP control plane can be lifted up out of network elements such as the Serving Gateway and the Packet Data Network Gateway (PDN Gateway) and moved into a controller running in a virtual machine in a data center. The EPC network elements then run a simplified OpenFlow control plane, enhanced with GTP TEID routing extensions. We discuss a few new features that are enabled with GTP TEID routing and the status of a prototype.
Starting Page	784
Ending Page	791
File Size	1352741
Page Count	8
File Format	PDF
ISBN	9781467314299
ISSN	21604886
e-ISBN	9781467314305
DOI	10.1109/WiMOB.2012.6379165
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-08
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	GTP Evolved Packet Core OpenFlow Logic gates Routing Mobile communication Control systems Software Defined Networking IP networks Mobile computing
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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