ITU Workshop on
“Bridging the Standardization Gap”
(Vientiane, Lao People’s Democratic Republic, 30-31 July 2012)
Standardization of Future Networks
-- networks of 2015-20 and beyond -Takashi Egawa,
Rapporteur of Q.21, SG13
NEC Corporation
t-egawa@ct.jp.nec.com
Vientiane, Lao People’s Democratic Republic, 30-31 July 2012
Again new network architecture?
Really?
ISDN was said to change the world…
B-ISDN and ATM was investigated…
I’m an old guy, I still remember IN…
Then came the Internet from outside…
Recently ITU promoted NGN…
Now they sell us Future Networks…
What’ this new buzzword?
Is there something new?
What’s the benefit for us? Is it true or hype?
Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
2
New architecture != new services
Water industry’s product is always the same
New architecture becomes necessary
when balance among important issue varies
Line cost versus Node cost: Optical fiber reduced
line cost: we can simplify node by sending more
complicated (text-based) control messages
Hard-disk cost is still decreasing
New service emerges
when new end-user device emerges
Personal Computer  internet
Mobile phone  made everything personal
Bigger computer (Data center)  cloud
Cheap
sensors
 July
M2M
Vientiane, Lao
People’s Democratic
Republic, 30-31
2012
3
Environment of 2015-20 (1)
New end-devices/services
Bigger computer behind the network (cloud):
The long-time dream of computer science. No
alternative in the near future. Cloud provider
will become influential on networks.
Sensors (M2M): maybe if good business model
emerges. # of terminals explodes
Devices
Improvement speed of various devices (optical
transmission, processors, memories, etc.) may
decrease. Traffic explosion (data, bandwidth, #
of terminals, etc.) cannot be handled solely
with device improvement.
 network will be more complicated
Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
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Environment of 2015-20 (2)
Speed of improvement
May not be so drastic as these 20 years
 Social requirements will become influential
again
 traditional requirements such as reliability
will become influential again
Environmental issue
Peak oil, Climate Change, … some of them may
become life and death problem in 20 years
Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
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Vision of Future Networks (Y.3001)
Definition of FN:
A network able to provide services,
capabilities, and facilities difficult to
provide using existing network
technologies.
Service
A Future Network is either:
awareness
a) A new component network
Service Diversity
or an enhanced version of
Functional Flexibility
an existing one, or
Virtualization of Resources
b) A heterogeneous collection
Network Management
of new component
Mobility
networks or of new and
existing component
Reliability and Security
networks that is operated
as a single network.
Target Date: roughly
2015-2020
Data
awareness
Data Access
Identification
Energy Consumption
Service Universalization
Optimization
Economic Incentives
4 objectives and
12 design goals
6 Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
Environmental
awareness
Social and
economic
awareness
Aims of standardization
Prune options (future possibilities)
Restrict the freedom of innovation
Non-IP packet format is almost extinct
Optimal for particular purpose, but non-standardized (ie,
customized) product cannot become majority if
standardization works well
Define the area of competition, making it severer
(=benefit for consumers)
Simplify our life
Makes some part of our life ‘decided’
We concentrate on remaining part
Expand the market
By making average users easier to understand/use
7 Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
Questions for FN standardization
Do we have enough options?
Are they mature enough to prune, or to freeze
innovation?
Which part is mature, which is not?
Is the emerging market clear enough?
Can we expect enough participation from industries?
ITU-T is contribution driven (no progress without
contribution).
Do industries ready to compromise to expand the
market?
If we specify standards, do market respect our
specifications?
FNs was in their early stage, so it was not
appropriate to define overall architecture
It is now changing.
8 Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
Backup slides
Vientiane, Lao People’s Democratic Republic, 3031 July 2012
9
Future Networks in ITU-T
SG13 (Future Networks including NGN and
mobile) leads this activity
Approved/agreed on three specifications
Future Networks (FNs) study is now
expanding in SG13
Started in Focus Group on Future Networks
(FG-FN) and Q.21/13
FG-FN: temporary, Q.21: standing
Smart Ubiquitous Network (SUN), a short-term
solution is currently studied in several Qs in
SG13
10Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
ITU-T FN activity timeline
Future Networks
(long-term future)
2009
Q.21 start
2010
2011
2012
FG-FN
5.2011
Vision (Y.3001)
10.2011
Net. virtualization (Y.3011)
energy saving (Y.3021)
identifier (Y.3031)
socio-economic
autonomic-mngt
SDN
Data-aware net
SUN
(shortterm)
Concept
SUN overview
Proposal Concept
Other SUN docs
discussion
11Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
Network Virtualization for FNs
(Y.3011)
 Definition of “network virtualization":
 A technology that enables the creation of logically isolated network
partitions over shared physical networks so that heterogeneous collection
of multiple virtual networks can simultaneously coexist over the shared
networks. This includes the aggregation of multiple resources in a
provider and appearing as a single resource.
 Motivation
Various Services
LINP3
Virtual
Networks LINP1
LINP2
Physical NW 4 Manager
Physical NW 4
Physical NW 2 Manager
2012
Physical NW 2
Physical NW 3
Physical NW 3 Manager
 Isolation, network abstraction,
topology awareness and quick
reconfigurability, performance,
Lao People’s Democratic
Republic, 30-31 July
12Vientiane,
programmability,
management,
Physical NW 1
Physical NW 1 Manager
 Coexistence of multiple
Virtual
networks
Resources
 Simplified access to resources
 Flexibility in provisioning
 Evolvability
 Design goals
Virtual Resources
Manager
design goals
LINP3 Manager
 Problem spaces &
LINP1 Manager
 Diverse services
 Heterogeneous network
architectures
LINP2 Manager
 Key technology for Service
Awareness of FNs
Energy saving for FNs (Y.3021)
 Definition of "Energy saving of networks":
 Network capabilities and their operations where the total energy for
network equipment is systematically used in an efficient manner
 Approaches
 Reduction of required network
capacity
 Improvement of efficiency
 Possible functions
 Energy Control & Measurement
Function
 Three levels of technologies
 Energy Management Function
 Function to calculate the
optimum case of operation
 Status Information Base
 Database of energy-related
information
Energy Management Function
Operating
Sub-function
Operation
DataCollecting
Sub-function
Access
Data
Energy Control &
Measurement Function
Network level
[e.g., routing path]
Equipment level
[e.g., node sleep]
Device level
[e.g., device clock]
13Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
Optimisation
Sub-function
Data
Status Information
Base
[e.g., power consumption,
traffic]
Identification Framework for FNs
(Y.3031)
Motivation
Essential to recognize potential
identifiers pertinent to networks
envisioned in ITU-T
Recommendation Y.3001
So, specify an identification
framework that includes node
IDs, data IDs, user IDs, service
IDs and location IDs in its scope
Future Networks Communication Objects
Devices
User
Data
Identification Framework
ID Discovery Service
ID Spaces
…
Location ID
User ID
Identification Framework
Service ID Node ID
Data ID
IDs Mapping
Registries
ID Mapping Service
Logically connects
communication objects to
physical networks
Includes four components:
ID
ID
ID
ID
Services
…
Location-based
forwarding
Networks
Discovery Service
Spaces
Mapping Registries and
Mapping Service
Detail specifications of these
components would be provided
Vientiane,
People’sRecommendations.
Democratic Republic, 30-31 July
byLaofuture
2012
Various
Networks
(IP, non-IP)
ID-based
forwarding
Networks
Y.FNsocioeconomic
Is this technology good for society?
Economically reasonable?
Some interfaces/mechanisms are too integrated,
and difficult to improve because too many parties are involved
When a technology is given, Y.FNsocioeconomic
Lists and describes methods to assess socioeconomic effect of the technology
Analyze potential tussles among parties
Helps design/select appropriate technology for
Future Networks
15Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
FN related documents
Status
Short title
Y.3001
Approved(05.11) Future networks: Objectives
and design goals
Y.3011
Approved(10.11) Network virtualization
Y.3021
Approved(10.11) Energy saving
Y.3031
Approved(05.12) Identifiers
Y.FNid-config
Target:12.2012
ID configuration
Y.FNsocioeconomic
Target: 2013
Tech evaluation method
Y.amnsa
Target:12.2012
Autonomic network
management
Y.FNDAN
Target: 2013
Data-aware networking
Y.FNsdn
Target: 2013
Telecom SDN framework
Y.FNsdn-fm
Target: 2013
SDN Formal Lang. Rqrts
Y.Fnvirtreq
Target: 2013
Vientiane, Lao People’s Democratic Republic, 30-31 July
2012
NW virtualization Rqrts
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