Fraunhofer FOKUS Competence Center NGNI Julius Müller, Thomas Magedanz [email protected]www.av.tu-berlin.de [email protected]www.fokus.fraunhofer.de/go/ngni May 22nd – LTE World Summit Focus Day / Master Classes, LTE World Summit Focus Day – Handling the surge in signaling traffic, Barcelona, Spain, May 22-24, 2012 The Evolution of Service Control Mechanisms in Next generation Networks towards Future Internet www.ngn2fi.org supported by www.g-lab-deep.de
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LTE World Summit 2012 Julius mueller fraunhofer-fokus-tues_focus-day
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In future mobile broadband communications multi access network support (incl. fixed & cable) and multi application domain support (OTT, IMS, P2P, M2M, Cloud etc.) will become key for multimedia service delivery
Based on the success of the Open IMS Core, Fraunhofer FOKUS is developing a NON-OPEN SOURCE EPC platform, enabling academia and industry to
integrate various network technologies and
integrate various application platforms
into a single local testbed, thus lowering own development costs
This platform can be used to perform R&D in the fields of
OpenEPC includes the main functionalities of 3GPP's Evolved Packet Core (Release 10)
The principles of standard alignment, configurability and extensibility have been respected in the overall architecture and in the specific components implemented
In Rel. 3, all the 3GPP EPC components are available supporting features which include:
Seamless Mobility Support (GTP, PMIP)
Core network support for LTE and 3GPP accesses
Subscription based procedures for:
AAA procedures for 3GPP and non-3GPP accesses
Always Best Connected
Policy and Charging Control
Mobile Equipment support for EPC
PLEASE NOTE: OpenEPC does not claim 100%
standard compliance, but allows for early prototyping
OpenEPC Rel. 3
Fraunhofer FOKUS Competence Center NGNI
Functionality:
Subscription based auth. and authoriz.
Receiving requirements from services
Policy based resource reservation
Online and offline charging
Components:
PCRF – Policy and Charging Rules F.
SPR – Subscription Profile Repository
AF – Application F.
PCEF – Policy and Charging Enforcement F.
BBERF – Bearer Binding and Event Rules F.
OCS/OFCS – Online/Offline Charging System
TDF – Traffic Detection Function
EPC with Policy and Charging Control for non-3GPP Accesses
HSS (SPR)
Application Function Rx
Gx
Gxx
Sp
IP Connectivity
Data Path
Auth. & Authoriz.
3GPP Access Mgmt
Policy and Charging
OCS
OFCS
Gy
Gz
TDF
Sd
Untrusted Non-3GPP
Trusted Non-3GPP
ANGw (BBERF)
PDN GW (PCEF)
Gxx
AAA Server
ePDG (BBERF)
PCRF
IP Connectivity
Fraunhofer FOKUS Competence Center NGNI
Extending 3GPP PCC Architecture (ROAMING)
UE pushes QoS-request via Rx# at the GARC
New reference point: Rx#
New functional entity: GARC
Mueller J., Magedanz T., Corici M., Vingarzan D., 'UE & Network Initiated QoS Reservation in NGN and Beyond', Network of the Future (NOF), 2011 International Conference on the Future Internet, Issue Date : 28-30 Nov. 2011, On page(s): 62 - 67, Print ISBN: 978-1-4577-1605-8, DOI: 10.1109/NOF.2011.6126684Paris, France, 28-30 Nov. 2011, www.network-of-the-future.org, http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6126684
Fraunhofer FOKUS Competence Center NGNI
Introduction
Extending the 3GPP Policy Control and Charging Architecture
Use case 1: Evolved Packet Core (EPC) Use case 2: Open Networks - OpenFlow
Evaluation
Summary
Q&A
Agenda
Fraunhofer FOKUS Competence Center NGNI
OpenFlow Network Architecture
OpenFlow – An Overview
Definition of OpenFlow
“OpenFlow: a way for researchers to run experimental protocols in the networks they use every day.
OpenFlow is based on an Ethernet switch, with an internal flow-table, and a standardized interface to add and remove flow entries.” [OFKe08]
Open Flow virtualizes networks through separating control and switching functionality by extracting the routing decision point from the switch into the controller.
OpenFlow consists mainly of five elements
OpenFlow Switches: Separation between Switch and Routing/Forwarding functionality.
Generic Adaptive Resource Control (GARC) for OpenFlow
GARC: 3GPP Policy Charging Control extension for heterogeneous access and core networks
[Rx#] Generic QoS demands of
Network aware applications
Network operator policies
Service provider rules
[Gx#] NOX – GARC Interface
NOX specific messages: JSON via TCP
Request network monitoring data and statistics
[Gxx#] GARC – Switch Interface
Flow-to-Queue mapping over switch specific DPCTL messages
[OFP] Controller – Switch Interface
OpenFlow Protocol providing standard OpenFlow Controller Interface
OpenFlow Network Architecture
OpenFlow Controller
OpenFlow Switch
Host
OFP
Host
Data
Generic Adaptive Resource Control
(GARC) Gx(x)#
Gx# Gxx#
Rx#
Rx#
Network aware apps / Network Operator Policies /
Service Provider Rules
OFP
Fraunhofer FOKUS Competence Center NGNI
Introduction
Extending the 3GPP Policy Control and Charging Architecture
Use case 1: Evolved Packet Core (EPC) Use case 2: Open Networks - OpenFlow
Evaluation
Summary
Q&A
Agenda
Fraunhofer FOKUS Competence Center NGNI
Validating the QoS Support within OpenFlow
[t0] Start experiment with four independent TCP flows without any QoS class label.
[20] Assign each flow to one of four QoS classes supporting minimal bandwidth guarantees.
[t80] Change QoS class mapping of flows.
[140] Remove QoS classes from flows. TCP flows swing into a stable bandwidth level.
[t180] End of experiment.
Fraunhofer FOKUS Competence Center NGNI
Introduction
Extending the 3GPP Policy Control and Charging Architecture
Use case 1: Evolved Packet Core (EPC) Use case 2: Open Networks - OpenFlow
Evaluation
Summary
Q&A
Agenda
Fraunhofer FOKUS Competence Center NGNI
Summary
Video streaming dominates the overall data traffic.
Revenue gap between expenses and income is already there.
Network operators are loosing network and service control, customers and revenues to Over-The-Tops.
Manage user plane traffic when RAN congestion occurs using converged and adaptive QoS control functionality in All-IP networks.
Generic Adaptive Resource Control (GARC) extends the 3GPP PCC Architecture.
GARC enables converged, adaptive and generic network resource control in NGN and beyond.
Fraunhofer FOKUS and its related TU Berlin department are working in the field of NGNs since many years and have developed adequate tools and technology playgrounds which are used in major academic and industry projects.
Fraunhofer FOKUS Competence Center NGNI
Questions ???
3nd FOKUS Future Seamless Communication Forum (FFF)
GI/KUVS Next Generation Service Delivery Platform Expert Talk series
www.KUVS-NGSDP.org
IEEE Open NGN and IMS Testbed (ONIT) Workshop series
www.onit-ws.org
ICST Tridentcom Testbed conference series
www.tridentcom.org
DAAD University Future Internet (UNIFI) Workshops
www.daad-unifi.org
Fraunhofer FOKUS Competence Center NGNI
3nd FOKUS Future Seamless Communication Forum (FFF) Berlin, Germany, November 15-16, 2012
Theme: “Convergence of Human-to-Human and Machine-to-Machine Communications within Emerging Open Smart City ICT Infrastructures – Using Open APIs, RCS, IMS, MTC, EPC, and LTE as Enablers for Emerging Future Internet Application Domains”
FUSECO FORUM is the successor of the famous FOKUS IMS Workshop series
FFF 2010 attracted 150 experts from 21 nations
FFF 2011 was attended by around 200 experts from 30 nations