Internet DRAFT - draft-xuan-dmm-multicast-mobility-slicing
draft-xuan-dmm-multicast-mobility-slicing
<DMM WG> Truong-Xuan Do
Internet Draft Younghan Kim
Intended status: Informational Soongsil University, Korea
Expires: April 2017 Oct 30, 2016
Architecture for delivering multicast mobility services
using network slicing
draft-xuan-dmm-multicast-mobility-slicing-00
Abstract
This document describes the architecture of delivering the mobility
and multicast over 5G core network using network slicing. The
mobility and multicast are delivered to customers on demand basis,
depending on operator's use cases and traffic type of customer.
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Copyright Notice
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Table of Contents
1. Introduction...................................................3
2. Conventions used in this document..............................3
3. Architecture for delivering multicast and mobility.............4
4. Security Considerations........................................6
5. IANA Considerations............................................6
6. References.....................................................6
6.1. Normative References......................................6
6.2. Informative References....................................6
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1. Introduction
In the 5G era, the mobile network functions and mobile services
could be provided on demand basis using network function
virtualizaton (NFV) and network slicing. This document describes the
architecture of delivering the mobility and multicast services
over 5G core network using NFV and network slicing. The mobility and
multicast are delivered to customers depending on their type of
traffic that they are going to request or mobile operator's specific
use cases. This architecture makes use of advanced features of
current distributed mobility management deployment and management
and orchestration framework (MANO) of network function virtualizaton
This architecture provides a real view of deployment of mobility
and mulicast functions in 5G core network.
2. Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC-2119 [RFC2119].
The terms about distributed mobility managements, MANO, NFV are
defined in [ETSI-NFV-MANO] and [IETF-DMM-deployment-model] and
[IETF-DMM-multicast-deployment-model]
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3. Architecture for delivering multicast and mobility services using
network slicing
+---+-----------------------------------+-----+
| | Orchestration services | |
| | | |
| +-----------------------------------+ |
| Mobility Multicast Service Orchestration |
| |
+---------------------------------------------+
+--+-------------------+----+ +-+----------------------------------+-+
| | VNF Manager | | | | Virtual Network Controler | |
| +-------------------+ | | +----------------------------------+ |
| | | +------------------+ +-------------+ |
| +------------+ +---------+| | |Mobility Controler| | MB controler| |
| | Mobility | |MB VNF || | +------------------+ +-------------+ |
| | VNF Manager| |Manager || | +-----------------------+ |
+-+-------------+----------++ | |Network Virtualization | |
| +--------+-------+---------------+-----+
| |
| Rest APIs | Openflow/Netconf
v v
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
X (CMA) X
X (CMN) (DMA) X Multicast Slice
X (DMN) X
X X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
X (H-CPA) X
X (A-CPN) (H-DPA) X Mobility Slice
X (A-DPN) X
X X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
X (H-CPA + CMA) X
X (A-CPN) (H-DPA + DMA) X Mobility +
X (A-DPN) X multicast
X X slice
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Fig 1. Multicast and mobility using slicing
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Fig 1. shows the architecture for delivering multicast and mobility
services over core network using network slicing. In this document, we
assume that mobility and multicast services could be provided using
DMM functions, such as CMA, DMA. Those DMM functions are covered in
[IETF-DMM-deployment-model] and [IETF-DMM-multicast-deployment-model].
In 5G network, the concepts of MANO and slicing are introduced to
increase the network resource efficiency, elasticity, and flexibility.
The mobile network services should be provided on the demand basis and
optimized for a specific use case using network slicing. We observe
that there are several use cases that have different requirements
for mobility and multicast services as below.
+ Only multicast: public safety, video broadcast over sport area
+ Only mobility: user with non-video traffic (web surfing)
+ Multicast and mobility: user with video traffic
We introduce the architecture to provide network slice on demand and
suitable for each use case. Here, we have three network slices: the
only mulicast slice providing video streaming services for public
safety or sport event use cases; the only mobility slice providing
services for non-video traffic users; and the mobility and mulicast
slice providing services for video traffic users. Here, user traffic
could be classified as video and non-video traffic beforing entering
to the specific slice.
Main components of our architecture includes: specific VNF managers
(mobility VNF manager, multicast broadcast VNF managers), specific
network controlers (mobility controler, multicast broadcast controlers)
and a combined orchestration service. The specific VNF managers are
used to instantiate, configure, and manage DMM functions. These
DMM functions are described by VNF descriptors. The specific network
controlers are used to configure virtual networks corresponding to
functions supported by each slice. A flowvisor is used to create
different network slices over common network infrastructure. A combined
orchestration service based on operator's requirements to compose
different DMM functions to provide appropriate network services.
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4. Security Considerations
TBD.
5. IANA Considerations
TBD.
6. References
6.1. Normative References
[ETSI-NFV-MANO]
ETSI, "Network Function Virtualization (NFV) Management
and Orchestration V1.1.1", Dec 2014.
6.2. Informative References
[IETF-DMM-deployment-model]
S. Gundavelli, S. Jeon, DMM Deployment Models and
Architectural Considerations,
draft-ietf-dmm-deployment-models-00.txt, Aug 2016
[IETF-DMM-multicast-deployment-model]
Kyoungjae Sun, Truong-Xuan Do, and Younghan Kim,
Multicast mobility deployment scenarios over distributed
mobility management,
draft-kjsun-dmm-deployment-scenarios-multicast-dmm-03.txt
July 2016
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Authors' Addresses
Truong-Xuan Do
Soongsil University
Changui Bldg. 403,
(156-743) 511 Sangdo-Dong, Dongjak-Gu, Seoul, Korea
Phone: +82 10 4473 6869
Email: thespring1989@gmail.com
Younghan Kim
Soongsil University
11F Hyungnam Engineering Bldg. 1107,
(156-743) 511 Sangdo-Dong, Dongjak-Gu, Seoul, Korea
Phone: +82-2-820-0904
Email: younghak@ssu.ac.kr
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