JGN2 Utilization Guidance(4th Edition)

September, 2007

National Institute of Information andCommunications Technology(NICT)

If you have any inquiries regarding this utilization guidance or you want to apply for the
JGN II network, please contact the following JGN II Center.
JGN II Center
National Institute of Information and Communications Technology
4-2-1, Nukui-Kitamachi, Koganei,
Tokyo 184-8795, Japan
TEL：+81-42-327-6024
E-Mail：jgn2center@jgn2.jp

Revision History:In April, 2004, a tentative version was prepared according to the commencement of JGN II
Operations.
In May, 2004, the formats of research plans were improved and other modifications were madeas 1st edition.
In July, 2004, the formats of research plans were improved and other modifications were madeas 2nd edition.
In October, 2006, the formats of research plans were improved and other modifications weremade as 3rd edition.
In September, 2007, the descriptions as for PAP were included and other medications were madeas 4th edition.

Table of Contents
Preface----------------------------------------------------------------------------------------------------1
Chapter 1: Basic Operating Policy--------------------------------------------------------------------2
Chapter 2: Available Services--------------------------------------------------------------------------3
2.1 Services Available at All Access Points-----------------------------------------------------3
2.2 Services Available at Specific Access Points-----------------------------------------------4
2.3 Other Research Support-----------------------------------------------------------------------5
Chapter 3: Procedures Required for Utilization of the JGN2 Network---------------------------6
3.1 Basic Concept on Utilization------------------------------------------------------------------6
3.2 Flowchart of Utilization-----------------------------------------------------------------------7
3.3 Documents (Research Plans) to Be Submitted When Utilizing JGN2 Network-------8
3.4 Concluding Joint Research Contracts------------------------------------------------------13
3.5 Specific Application Method----------------------------------------------------------------15
3.6 Temporary Utilization------------------------------------------------------------------------16
Chapter 4: Before Utilizing the JGN2 Network----------------------------------------------------18
4.1 Conditions of Network Provision ----------------------------------------------------------18
4.2 Rules to Be Observed------------------------------------------------------------------------18
4.3 Caution-----------------------------------------------------------------------------------------19
4.4 Cooperation------------------------------------------------------------------------------------19
4.5 Others-------------------------------------------------------------------------------------------19
Reference 1: Operation System-----------------------------------------------------------------------20
Reference 2: Glossary----------------------------------------------------------------------------------22

Appendix-1:
Appendix-2:
Appendix-3:
Appendix-4:
Appendix-5:
Appendix-6:
Appendix-7:
Appendix-8:
Appendix-9:

Regulations for the JGN2 Network Utilization-----------------------------------23
JGN2 Research Plan (Research Project Overview, Research Organization
Information)---------------------------------------------------------------------------25
Joint Research Contract (Example)------------------------------------------------34
List of JGN2 Access Points and Services Available-----------------------------40
Outline or JGN2 Network ----------------------------------------------------------41
Main Specifications of JGN2 Connecting Equipment--------------------------42
JGN2 Event Utilization Application-----------------------------------------------45
Operation Policy of the JGN2 International Circuits----------------------------49
Instruction for Utilizing PAP--------------------------------------------------------51

Preface
An open testbed network for research and development allows you to perform pioneering works forresearch and development of various technologies. As a result, you can implement an IT society 5 or 10
years in advance, giving society and people an early glimpse of IT society.

In addition, the feedback fromsociety and people on your research and development can accelerate the progress of your research anddevelopment, leading to an early application of the results in society, which will significantly contribute to
the early realization of an IT society. The testbed network is clearly an important part of the IT strategy inJapan as it is clear from “e-Japan IT strategy II (developed by the IT strategy headquarters in July 2004),”
which states the importance of enhancing the testbed network for research and development.
The Telecommunications Advancement Organization of Japan (TAO) established the Japan Gigabit
Network (JGN), a network for researching and developing advanced technologies, including
super-high-speed networks and advanced application technologies, in order to implement a next generation
super-high-speed network in the 21st century.

The JGN was in service for five years from 1999 to 2003,

and left significant results in the promotion of broadband utilization, the promotion of IPv6 shifted from
IPv4 in the Internet, the regional activation and the cultivation of human resources.
Under this background, the National Institute of Information and Communications Technology (“NICT”),
an incorporated administrative agency, has been managing a new R&D testbed network “JGN2” since 2004
as the successor of JGN.

The JNG II is a nationwide network and has access points in all the prefectures(64 in total). Besides, the Japan-U.S.A. circuit and the Japan-Asia circuits (Thailand and Singapore) havebeen operated since August, 2004 and November, 2005 respectively as the JGN2 network.

As well as the

JGN, the JGN2 network is not only to provide a means to implement high-speed communication but also to
become a global core for technical research and development of advanced networks towards thenext-generation. The JGN2 network which aims to further develop the JGN, will play an important role onsocial field experiments and international collaboration. Though the JGN2 network is mainly operated byresearchers in the fields of networks and advanced applications, participation of ordinary people is taking
place as well as collaboration and connection with overseas organizations. In anticipation of the network
technology of the future, the JGN2 network aims to promote that the ubiquitous society will be realized.
With this goal in mind, the JGN2 network which is opened for everyone like the JGN will promote theestablishment of a research system for utilizing advanced networks through cooperation among the industry,
the academia, the government and regional organizations to be both domestic and overseas, as well as it will
improve networks as a social infrastructure. This guidance explains procedures for the JGN2 network
utilization.

1

Chapter 1: Basic Operating Policy
Based on JGN2 Utilization Regulations, the basic operating policy is as follows:(1) Users
In principle, anyone can utilize the JGN2 network for research and development. However, the user must
be the person who is specified in a joint research contract with the National Institute of Information andCommunications Technology (hereinafter referred to as NICT) or the person who is appointed by NICT forthe research and development performed by NICT itself.
(2) Utilization Method
The JGN2 network can be utilized not only through connection to a JGN2 Access Point (hereinafter referred
to as AP) established by NICT but also through connection to JGN2 Partnership Access Point (hereinafterreferred to as PAP [*1]) and should be utilized by the user who is specified in the Item (1) above. As foreach AP or PAP, please refer to Appendix-4.

The JGN2 network can only be utilized to the extent

specified by the joint research contract.
*1: PAP (Partnership Access Point)
PAP means some organizations not only connecting with JGN2 network but also providing incollaboration with NICT certain environment respectively to connect the other organizations
with the JGN2 network as JGN2 users.
PAP can be connected with the JGN2 network as well as the existing AP, but as the operation
policy of respective PAPs is to be established independently, their respective services andutilization procedures are different from each other among them as for the following items.
For further information, please refer to Appendix-9.

(3) Costs
The JGN2 network can be utilized free of charge. However, the user’s equipment must be connected to theequipment at AP or PAP. The cost of a line required for the connection (hereinafter referred to as the“access line”) must be borne by the user.

2

Chapter 2: Available Services
JGN2 provides not only Ethernet Connection Service (L2 Service) and IP Connection Service (L3 Service) that areavailable at all the access points but also OXC (Optical Cross Connect) Service, 10Gbps Connection Service andOptical Testbed Service which are available between specific access points [*2].
The user can be connected to the JGN2 network physically through the line to a JGN2 access point, which isprepared by the user as an access line. Besides, a regional data highway provided by a municipality may be used
as an access line.
Though 10/100/1000BASE-TX ports are provided at all the access points, the maximum transmission capacity
available is specified for each access point as shown in Appendix-4.

In addition, the JGN2 network does notguarantee the band, or the expected line speed may depend on the line configuration and the utilization status.
There may be cases where the JGN2 network collects communication data for research activities.

In addition,

there may be cases where the JGN2 network operation is suspended because of the influence of experimental traffic.
In these cases, NICT will notify users of that effect via the NICT homepage, except for cases of emergency.
The configuration of the communication line is shown in Appendix-5 as “Outline of JGN2 Network”, while theinterface conditions are shown in Appendix-6 as “Main Specifications of JGN2 Connecting Equipment” [*2].
*2: Available Services, etc. to Be Provided through PAP
In case of connecting with PAP, usable services, maximum transmitting capacity and interface
conditions are different from each other among PAPs.
For further information, please refer to Appendix-9 or ask respective PAPs.

The services available in the JGN2 network are explained in the following.
2.1 Services Available in All the Access Points
In the JGN2 network, connection ports for 10/100/1000BASE-TX (RJ45) are provided at all the access points.

In

addition, an optical connection such as 1000BASE-SX/LX is also available though there are limits to the number ofports. In case the optical connection is utilized, it is required for users to contact the JGN2 contact point for eachexperiment.

3

(1) Ethernet Connection Service (L2 Service)a. Point to Point Connection Service
This service provides L2 point to point connection based on a VLAN.
b. Multi-points Connection Service
This service provides L2 multiple point connection based on the same VLAN.
If multiple paths are needed for the same access point in these services, VLAN-ID can be given for each path to use
the same port.
(The VLAN-ID will be designated by NICT.)(2) IP Connection Service (L3 Service)
This service provides connections for JGN2 users with each other, or with other research networks and other users,
at the IP level as a service with an IPv6/IPv4 dual stack.

The information on available interconnected research

networks will be released on the homepage as some new information is obtained. An IPv6 address can be
assigned from this network, and an application can be submitted for the address to NICT as required.

In thisservice, some networks cannot be utilized for communication and in addition, transit is not provided.
2.2 Services Available in Specific Access Points
For utilizing the following services, NICT can accept consultation on each experiment. As for the serviceable accesspoints, see Appendix-4.
(1) OXC (Optical Cross Connect) Connection Service
This service provides connections for places where the OXC system is installed at the optical wavelength level.
1Gbps and 10Gbps will be used as connection interface.
(2) 10Gbps Connection Service
This service provides connections for certain access points by a 10Gbps-Ethernet. It is also possible to connect
access points which do not provide this service.
(3) Optical Testbed Service
This service provides optical transmission with dark fiber to conduct experiments between certain access points.

4

2.3 Other Research Support
To support research utilizing the JGN2 network, NICT is planning to provide the following information on its
homepage and its mailing list.
- Maintenance and trouble information- Traffic information- Introduction of research in progress- Information on symposiums, events, research result presentations- Mailing list for promoting communications among participants- Introduction of regional activities such as regional conferences

5Chapter 3: Procedures Required for Utilization of the JGN2 Network
3.1 Basic Concept on Utilization
The following procedures are required for utilizing the JGN2 network.
(1) Joint research contract
Before utilizing the JGN2 network, the user must conclude a joint research contract with NICT.

A

separate joint research contract is necessary for each research organization. In addition, overseas researchers
can utilize the JGN2 network by concluding MOU (Memorandum of Understanding) based on thecomprehensive joint research contract (See Appendix-8).
Once a joint research contract is concluded, each research organization does not have to conclude a new
joint research contract each time when a new research project is organized.

Otherwise, it is also possible

for each new project to enter into a research contract. (In detail, see Section 3.4 “Concluding Joint ResearchContracts”.)(2) Submitting required documents
It is required to submit research plans to NICT, describing the contents of the research to be performed on
the JGN2 network.

Research plans must be submitted for each research project when a new research

project is established or each time when the research project is modified.
A joint research contract must be concluded for each research organization, and required documents must be
submitted for each research project. (In detail, see Section 3.3 “Documents (Research Plans) to Be
Submitted When Using the JGN2 network”.
When the user stipulated in Article 3 of JGN2 Utilization Regulations wants to utilize the JGN2 network fora short term (in principle, about one month at the longest) due to an event and the like, it is required tosubmit an event utilization application to NICT (In detail, see Section 3.6 “Temporary Utilization”.)(3) Submitting applicationTO:
JGN2 Center
National Institute of Information and Communications Technology
4-2-1, Nukui-Kitamachi, Koganei,
Tokyo 184-8795, Japan
TEL: 042-327-6024

FAX: 042-327-5689

E-Mail: jgn2center@jgn2.jp
6

3.2 Flowchart of Use
The basic procedures required to utilize the JGN2 network are shown below.

Submit research plans

Receive unofficial approvalNo
Did you conclude a joint research contract?

Yes

Conclude joint researchcontractNo
Did you install an access line?

Yes

Install an access line

Establish the circuit and notice

Start the JGN2 network
operations

At first, it is required to submit research plans for the research to be implemented on the JGN2 network to
NICT (See Section 3.3 “Documents (Research Plans) to Be Submitted When Using the JGN2 Network” andAppendix-2).
NICT examines the contents of the research plans. If NICT deems the plan appropriate, NICT will give
unofficial approval to the applicant after confirming that there is no problem in the connection to the JGN2
network.
If the research organization has not concluded a joint research contract, NICT asks the organization toconclude a joint research contract in accordance with the research plans (In detail, see Section 3.4“Concluding Joint Research Contracts”.)
If the research organization does not have an access line, the organization should begin to prepare the access7

line required to connect to the access point, as well as the equipment and facilities prepared at the user side.
The user should prepare them in close coordination with the person in charge of the access point [*3].
When the date is fixed for actually connecting the equipment to the access point, it is required for the user
to notify NICT of its connection date.
After being notified of the connection date, NICT establishes the JGN2 circuit concerned.

NICT will

notify the user of the opening date when the circuit will come into service and the necessary information for
its establishment.
The user can utilize the JGN2 network after all the procedures are completed.
*3: Procedures for Utilizing PAP
In case of utilizing the JGN2 network through PAP, at first, the application for utilizing the
JGN2 network through PAP should be submitted to NICT. After that, NICT is to confirm if itis acceptable or non-acceptable. In the meantime, the PAP contact person may occasionally getin touch with the user.
With regard to preparation of the access line necessary for connecting with PAP and theequipment at the user, please sufficiently consult with the PAP contact person.

3.3 Documents (Research Plans) to Be Submitted When Using the JGN2 Network(1) Submitting research plans
It is required to appoint a project leader who controls the entire research project and a chief researcher foreach research organization.

In principle, the project leader is responsible to compile research plans,

including [Research Project Overview] and [Research Organization Information], and submit them to NICT.
Table 3-1

Work Assignment as for the Preparation of Research Plans

Research Project Overview
Research Organization Information

Preparation

Submission

Project leader

Project leader

Chief of each researchorganization

8

Project leader

University A

University B
Researchplans

Chief Researcher
researcher

Company C
Research
plans

Project leader
Researcher
cum chief
researcher

Chief
R esearcher
researcher

Compiling research plansfor each research project

Submitting research plans of
all research organizations

NICT

Figure 3-1

Image of Research Plan Submission

As for the research plan [Research Project Overview], the project leader should describe the entire research
project information and submit it to NICT.
As for the research plan [Research Organization Information], the chief researcher in each joint researchorganization should describe each research organization information and submit the it to the project leader.
The project leader should collect the information and submit it to NICT.
(2) Configuration of research plans
The configuration of the research plans is summarized in Table 3-2. The details of these research plans are
explained below the table. In addition, the submission of other documents may be required.
Table 3-2

Configuration of Research Plans

Name
Research Project Overview

PurposeClarify the purpose of the research and the contents of
the research.
Clarify the network configuration of the entire research
project.

Research Organization Information

Clarify the contents of each research organization.
Set up and change the network and equipment in eachresearch organization.
Clarify the contact persons for each researchorganization.
9

- Research Project Overview (Description related to the entire research project)
In the research project overview, it is required to describe the topics related to the entire research project asshown below.
1. Research Project Information(1) Research project theme(2) Project leader(3) Joint research organizations(4) Contact points for the research project(5) Research purpose(6) Contents of the research
2. Utilization Service Information(1) Topology (Network overview of the entire research project)(2) Information on connected sections(3) Schedule of the entire research project- Research Organization Information (Information related to each research organization)
In the research organization information, it is required to describe the details of each researchorganization that participates in the research project as shown below.

This information must be

prepared for each research organization.
1.Researcher Information(1) Research project theme(2) Chief researcher(3) Researchers(4) Utilized Access point
2. Utilization Service Information(1) Topology (Details of network and equipment configuration in the research organization)(2) Connection information(3) Utilization schedule
3. Paperwork Procedure Information(1) Contact points for the research organization(2) Contact points of the person in charge of the contract paperwork(3) Information on the existing joint research contracts

Examples of topology diagram of the research project overview and the research organization information
are shown below.

10[Synopsis of Research Project]
2. Information of Service Utilization(1) Topology (Synoptic Network of the Entire Research Project)
Connection1
Research
Organization A

L2 VLAN

Research
Organization B(Access Point -2)(Access Point-1)

Connection 2

Connection 4

L2 VLANL2 VLAN
Connection 3

Research
Organization C(Access Point -3)

L2 VLAN

Research
Organization D(Access Point -4)(It is required to write the configuration schematic diagram of the entire research project.)(2) Detailed information on connected sections
Connection 1(new/continue/abolish)

AP

Port

Name

NumberDate of Work (d/m/y)

Physical IF

VLAN-ID

Nego

Service TypeAccess
Line

1A

AP-1

1000BASE-T

SA

LA

1B

AP-2

1000BASE-T

SA

LA

Connection 2(new/continue/abolish)

AP

Port

Name

NumberDate of Work (d/m/y)

Physical IF

VLAN-ID

Nego

Service type

Access
line

2A

AP-1

1000BASE-T

SA

LA

2B

AP-3

1000BASE-T

SA

LA

Connection 3(new/continue/abolish)

AP

Port

Name

NumberDate of Work (d/m/y)

Physical IF

VLAN-ID

Nego

Service type

Access
line

3A

AP-2

1000BASE-T

SA

LB

3B

AP-3

1000BASE-T

SA

LA

Connection 4(new/continue/abolish)

AP

Port

Name

NumberDate of Work (d/m/y)

Physical IF

VLAN-ID

Nego

Service type

Access
line

4A

AP-2

1000BASE-T

SA

LB

4B

AP-4

1000BASE-T

SA

LA

11

[Research Organization Information]
2. Information of Service Utilization(1) Topology (Details of Network and Equipment Configuration in the Research Organization)(Ethernet Connection)

JGN2
AccessPoint-1

PC

RouterAccess Line
(Wide-area Ethernet Service)(It is required to write the equipment configuration diagram to each research organization fromits access point connected.)

1

AP

Port

Name

NumberAP-1

Physical IF

VLAN-ID

Service TypeAccessLine

1000BASE-T

Figure 3-2

Nego

SA

LA

Image of Topology Diagram and an Example for Description

For the form required for applications, see “Appendix-2”.
following URL.
http://www.jgn.nict.go.jp/

12

The form can also be downloaded from the3.4 Concluding Joint Research Contracts
To utilize the JGN2 network, a joint research contract must be concluded with NICT. The basic flow ofprocedures for concluding a joint research contract is shown below. (See Appendix-3 “Joint ResearchContract (Example)”.)- Submit research plans for each project.
- Conclude a joint research contract for each research organization.
- “The Research Plan [Research Organization Information] (1.Researcher Information)” should be a part of
the joint research contract.
- “The Research Plan [Research Organization Information] (1. Researcher Information)” should be attachedas numerously as belonging research projects to the joint research contract of each research organization.
Research Organization A

Joint Research Contract(Text)

Research Plan [Research Organization

Research Plan [Research Organization

Information] (1. Researcher Information)

Information] (1. Researcher Information)(Research Project X)(Research Project Y)

Attach as numerously as belonging research projects.

Figure 3-3

Formation of the Joint Research Contract

A research organization utilizing the JGN2 network for the first time should conclude a joint researchcontract.

In principle, Joint research contracts terminate at the end of the fiscal year.

If a new research project is added or there is a modification to the contents of the research plan, the researchorganization ordinarily does not have to conclude a joint research contract again. After notifying NICT ofthe addition or modification, replace “the Research Plan [Research Organization Information] (1.
Researcher Information)” in the joint research contract with a new one in accordance with the reply from
NICT. (But it is also possible to conclude a contract again, if necessary.)
If a research organization that has already concluded a joint research contract wants to add a new research
project, it is required to add the information on “the Research Plan [Research Organization Information] (1.
Researcher Information)” to the contract.
If the research organization wants to modify the contents of the research project, it is required to replace theresearch plan with a new one (For details, see Section 3.5

13“Specific Application Method”.

Diagrams on adding a research plan to the joint research contract, replacing the research plan and deleting
the research plan are shown below.
- In Case of Adding a Research Project
Research Organization A
Addition
Joint Research Contract(Text)

Research Plan [Research Organization

Research Plan [Research Organization

Research Plan [Research Organization

Information] (1. Researcher Information)

Information] (1. Researcher Information)

Information] (1. Researcher Information)(Research Project X)(Research Project Y)(Research Project Z)- The research plan [Research Organization Information] (1. Researcher Information) of Research
Project Z is added to the joint research contract.

- In Case of Modifying the Contents of the Research Project
Research Organization A

Joint Research Contract(Text)

Research Plan [Research Organization

Old Research Plan [Research Organization

Information] (1. Researcher Information)

Information] (1. Researcher Information)(Research project X)(Research Project Y)

Replacement
New Research Plan [Research
Organization Information] (1. Researcher
Information) (Research Project X)- The old research plan [Research Organization Information] (1. Researcher Information) of Research Project Y in
the joint research contract is replaced with a new research plan containing modified data.

- In Case of Deleting the Research Project
Research Organization A
Deletion
Joint Research Contract(text)

Research Plan [Research Organization

Research Plan [Research Organization

Information] (1. Researcher Information)

Information] (1. Researcher Information)(Research Project X)(Research Project Y)- The research plan [Research Organization Information] (1. Researcher Information) of Research Project Y tobe abolished is deleted from the joint research contract.

14

3.5 Specific Application Method
There are various cases in utilizing the JGN2 network: a case which new research projects may be launched,a case which a research organization may participate in the existing research project or leave the existing
research project and a cast which the contents of the utilization service may be changed.

The specificapplication method is explained for each case in this section. (For cases which are not explained in thisdocument, it is required to consult with NICT individually.)(1) In Case of launching a new research projectIn case of launching a new research project, it is required to compile research plans one by one for eachresearch project and submit them to NICT.
For utilizing the JGN2 network, a research organization which has not yet concluded a joint researchcontract with NICT should conclude a joint research contract with NICT.

Research Project X (applied for new research projects)

Research Plan

Research Plan

Research Plan

(Research Organization A)(Research Organization B)(Research Organization C)

New

New

New

- If all the research organizations submit applications for the first time, NICT will conclude joint research contracts
with all the research organizations.

Research Project Y (applied for a new research project)
Research Plan

Research Plan

Research Plan

(Research Organization A)(Research Organization B)(Research Organization D)

Existing

Existing

New- Research organizations A and B do not have to conclude joint research contracts with NICT this time because
they have already concluded joint research contracts for another research project. Only research organization D
has to conclude a joint research contract because it has not yet concluded it with NICT.

(2) In Case of participating in the existing research project or leaving the existing research projectIn case a research organization newly participates in the existing research project, it should submit a“Research Plan [Research Organization Information]” to NICT.

If the research organization has not yet

concluded a joint research contract with NICT, it should conclude a joint research contract with NICT.
15

It

is also required to modify the “Research Plan [Research Project Overview]” and submit it to NICT.

The

project leader should compile research plans of the entire research project and submit them to NICT.

The

modification procedure is completed when a notice from NICT is received.

Research Project X (applied for the existing research project)
Additional Participation
Research Plan

Research Plan

Research Plan

Research Plan

(Research Organization A)(Research Organization B)(Research Organization C)(Research Organization E)

Existing

Existing

Existing

New-

In case Research Organization E newly participates in the existing research project, NICT
concludes a new joint research contract with Research Organization E.

The leaving procedure is also in accordance with the additional participation procedure mentioned above.
In case the research project is discontinued due to leaving research organizations, it is required to notify
NICT of it in writing one month prior to its leaving in accordance with the joint research contract.
(3) In Case of modifying (adding or deleting) the chief researcher or the researcher
In case of modifying (adding or deleting) the chief researcher or the researcher, it is required to submit a“Research Plan [Research Organization Information]” in which the information of the modified researchorganization is described. The information on research organizations for which no modification are madedoes not have to be submitted.

A “Research Plan [Research Project Overview]” should be submitted only

when there is a certain modification.

The modification procedure is completed when a notice from NICT

is received.
(4) Other modifications
In case there is a certain modification to, for example, the utilization service, the research contents orothers, it is required to submit the modified “Research Plan [Research Project Overview] and [Research
Organization Information].” The modification procedure is completed when a notice from NICT is
received.
3.6 Temporary Utilization(1) Temporary utilization
Temporary utilization, in principle, refers to the JGN2 network utilization in an event and the like by a16

research organization which has already concluded a joint research contract.

The event and the like refers

to the JGN2 network utilization for a short period (in principle, no longer than one month) when the
research organization meets the following conditions:- Perform a demonstration by using the JGN2 network.
- Comply with the research contents described in the research plan.
In this case, the research organization is permitted to change the network setting defined in the research planin order to perform the demonstration.
In case of performing a demonstration by using the JGN2 network, it is required to submit an event
utilization application regardless of whether or not the network setting is changed.
See “Appendix-7” for the format required for submitting an application.

The form can also be

downloaded from the following URL:
http://www.jgn.nict.go.jp/(2) Utilization conditions
Before utilizing the JGN2 network, it is required to understand the following conditions:- Take responsibility for any problems to the JGN2 network utilization through the person responsible forthe event.
- Take care not to cause any physical damage to the JGN2 network during the event and before and after it.
- Accept no guaranteeing for the communication quality with the JGN2 network.
- Submit a research report related to the event (with any quantity and form) to NICT.
- Publicize the JGN2 network actively.
- Use the following logo during the event.

17

(3) Caution
In case of submitting an application, it is required to take note of the following points:- In principle, submitting an application one month or more in advance. (in case of establishing a line andthe like, taking into account how many days required for its work.)- There are cases where a request is not accepted because of the network setting.
- In principle, the period of the JGN2 network utilization is one month at the longest.

Chapter 4: Before Utilizing the JGN2 Network
4.1 Conditions for Network Provision(1) NICT does not guarantee the quality of communication on the JGN2 network.
(2) NICT is not liable for any damage resulting from users’ utilization of the JGN2 network or inability toutilize the JGN2 network.
(3) NICT may collect communication data for the purpose of research and management.
4.2 Rules to Be Observed
In utilizing the JGN2 network, the user should observe the following rules:
If the user violates any of the following rules, NICT may revoke permission to utilize the network.
(1) In utilizing the JGN2 network, NICT prohibits the following acts:
The user should take appropriate measures to prevent the following acts.
-

Utilize the JGN2 network without concluding a joint research contract.

-

Utilize the JGN2 network for a purpose unrelated to the research performed by the user, which is
specified in Article 3 of Utilization Regulations.

-Utilize the JGN2 network directly for profit-

Let a person other than the user specified in Article 3 of Utilization Regulations utilize the JGN2
network.

-

Interfere with the network management.

-

Violate the regulations or offend the public order and morals.

-

Perform other acts which NICT (the JGN2 administrator) considers inappropriate.

(2) In utilizing another network via the JGN2 network, it is also required to observe the utilization
regulations of the network concerned.

18

4.3 Caution
In utilizing the JGN2 network, it is required to keep the following items in mind.
(1) All matters regarding the user’s facilities in the section to the user’s site from the connection equipment
installed by NICT and the access line are in the user’s responsibility.
(2) Depending on the access point, it may be required to have separate coordination with the organization
which has installed the equipment before using the equipment.
(3) The ownership of the intellectual property obtained by the user in the course of research utilizing the
JGN2 network is stipulated in the joint research contract or other document.
(4) NICT is not liable for any damage resulting from user’s utilization of the JGN2 network.
(5) If the user causes damage to NICT either intentionally or through gross negligence in utilizing the JGN2
network, the user is liable for NICT as for the damage.
4.4 Cooperation(1) To let people know about the usability of the JGN2 network and to urge onward a certain active researchand development, it is required for users to cooperate with NICT by reporting the progress and resultsof the research through research presentation conferences and symposiums sponsored by NICT.
(2) If users will contact the press or write a paper concerning the research utilizing the JGN2 network, it isrequired to state that the JGN2 network would have been utilized for the research and give the research
project number that would have been assigned by NICT when the joint research contract is concluded.
At the same time, it is required to submit a copy of the presented material or paper to NICT. Whencontacting the press, NICT will be informed in advance.
4.5 Others(1) Besides the JGN2 network, the user should establish an environment in which the Internet can be usedbecause NICT notifies users of the JGN2 network troubles and the like.
(2) Information on maintenance, troubles, traffic and events such as research presentation conferences andthe like can be submitted on the JGN2 home page.

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Reference 1: Operation System
The JGN2 network is operated by NICT.

To operate the JGN2 network smoothly, NICT has establishedthe following organizations.
(1) Next Generation Advanced Network Promotion Conference

Next Generation Advanced Network
Promotion Conference

Secretarial Board

Promotion Sectional Committee

Research Promotion
Committee

Figure Reference 1-1

International Collaborative Research
Promotion Committee

JGN2 Operation System

The roles of the organization and each committee in Figure Reference 1-1 are as follows:
1. Next Generation Advanced Network Promotion Conference
Examine methods to promote the research and development utilizing the JGN2 network and the directionof the JGN2 project management.
2. Secretarial Board
Examine the issues regarding the smooth management for the next generation advanced network
promotion conference and the management policy of the JGN2 project.
3. Promotion Sectional Committee
Examine the utilization promotion of the JGN2 network, communicating with regional conferences, andcarrying out public relations.
4. Research Promotion Committee
Serve a forum to exchange opinions between researchers directly controlled by NICT and external
researchers and examine the direction of research themes utilizing the JGN2 network.
5. International Collaborative Research Committee
Examine the research and development utilizing the JGN2 international circuits.
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(2) JGN2 Center and JGN2 Network Operation Center (NOC)
To operate the JGN2 network smoothly, NICT has established the JGN2 center and the Network Operation
Center (NOC).
JGN2 Center
The JGN2 center plays a role to deal with users’ applications for connecting to the JGN2 network, accept
and examine research plans, conclude joint research contracts, determine network settings, respond toinquiries regarding network settings and provide research and development support information such as
network reservation status, trouble information and the like.
JGN2 Network Operation Center (NOC)NOC implements network settings determined by the JGN2 center and operates and monitors networks.

JGN2 Communication Circuit

JGN2 NOC (NICT)・Communication circuit setting・Operation and monitoring

Utilization

Inquiry, submitting
applications forutilization of the
JGN II network

JGN2 Center (NICT)s・ Universities

TEL: +81-42-327-6024
・Coordinating the utilization ofcommunication circuits
・Concluding joint research contracts
・Providing information

User

・ Research
Concluding joint
research contracts

organizations
・ Administrative bodies
・ Local governments
・ Others

Figure Reference 1-2

Network Operation System

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Reference 2: Glossary［Ubiquitous］ The term ubiquitous means being everywhere in Latin.
By way of example, Ubiquitous Network: A network that can be accessed fromanywhere at any time not only by computers but also by various apparatuses including
cellular phones.
［ADSL］

Abbreviation of Asymmetrical Digital Subscriber Line.

It is a type of high-speed

communication technology using subscriber lines of telephones (metal cables).
Transmission speeds are different between upstream and downstream directions.
［Ethernet］

The most widely used LAN method.

It has become a synonym for LAN. Transmission

speeds of 10Mbps, 100Mbps, 1Gbps and 10Gbps are standard.
［FTTH］

Abbreviation of Fiber To The Home.

This is a plan to replace all cables such as

telephone lines with optical fibers and to disseminate optical fibers into generalhouseholds.
［IP］

Abbreviation of Internet Protocol.

A protocol which is widely used by LANs and theInternet.
［IPv4］

Abbreviation of Internet Protocol version 4.
Internet Protocol at present.

［IPv6］The most widely used version of the

IPv4 addresses will be exhausted soon.

Abbreviation of Internet Protocol version 6.

An IP protocol for the next generation.

To solve the IP address exhaustion problem, IP addresses have been extended to 128
bits, which are four times larger than IPv4 addresses.
［L2］

Abbreviation of Layer 2. In this method, packets are forwarded to the destination
determined by MAC (Media Access Control) addresses.

［L3］

Abbreviation of Layer 3. In this method, packets are forwarded to the destination
determined by IP addresses.

［OXC］

Abbreviation of Optical Cross Connect.

This is a device which relays signals without

returning optical signals to electric signals.

It assigns wavelength multiplexed opticalsignals based on the wavelength.
［QoS］

Abbreviation of Quality of Service.

［VLAN］

Abbreviation of Virtual LAN.

This is a technique of constructing a logical LAN apartfrom a physical LAN by grouping computers connected to the LAN.
［VLAN-ID］ Abbreviation of Virtual LAN-Identification. Additional information assigned to eachgroup to distinguish groups when computers are grouped for a VLAN.

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