StarBED Equipment

1. Overview

As illustrated in the figure on the right, StarBED mainly consists of the following three groups.

  • Experiment node group :
    It consists of about 1,000 servers.  For details, please refer to the tables below.
  • Network switch group for management :
    Used to control the experiment nodes.
  • Network switch group for experiment :
    Provides a bidirectional communication between experiment nodes through a network backbone of up to 200 Gbps.

The experiment network connects the experiment nodes via experiment switches, creating an environment which is independent from other networks and that makes possible highly-dependable network experiments and verification.

When using the StarBED equipment for experiment and verification, testbed users can access it not only from inside our center, but also externally through the Internet and VPN. Moreover, the StarBED experiment environment can also be connected to JGN-X*, WIDE** and other research networks.

*: New Generation Network Testbed JGN-X

**: WIDE (Widely Integrated Distributed Environment) Project Testbed Network

Image of StarBED Equipment

Image of StarBED Equipment


2. Experiment Nodes Groups

The experiment nodes are divided into some groups, as shown in the table below.

Experiment node groups in operation (As of April 2017):

        Total : 984 nodes (10.2K cores, 53.5TB memory)


Model Total Number Year of installation
Group - H

HP ProLiant DL320 G5p

240 2009
Group - I

Cisco UCS C200 M2

192 2011
Group - K 144
Group - L 120
Group - N

DELL PowerEdge C6220

224 2013
Group - O

SeaMicro SM15000-XE

64 2013

Obsolete experiment node groups:


Model Total Number Term
Group - A

NEC Express5800 110Rc-1

208 2002 - 2011
Group - B 64
Group - C

NEC Express5800 120Ra-1

Group - D

NEC Express5800 110Rc-1

Group - E 64
Group - F

NEC Express5800 110Rg-1

168 2006 - 2016
Group - G

Proside Amazelast neo920

150 2007 - 2016
Group - M

Cisco UCS C200 M2

14 2011 - 2017
Group - J 82

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Experiment Nodes (1) Experiment Nodes (2)

Experiment Nodes in the Simulator Research Room