Our Center
StarBED Equipment


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

  • Experiment node group :
    It consists of hundreds 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 ResponsiveImg

Image of StarBED Equipment

Experiment Nodes (2)

Experiment Nodes in the Simulator Research Room

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 2023):

Group Model Spec Year of installation
Group W, X


CPU: Intel Xeon Gold 6330N 2.2G, 28C/56T, 11.2GT/s,
     42M cache, turbo, HT (165W) DDR4-2666 x 2
Memory: 32GB RDIMM, 3200MT/s,
     dual rank 16Gb base x 16 = 512GB
Storage: SSD 480GB SSD SATA Read Intensive 6Gbps 512
     2.5inch HotPlug x 2 (RAID1)
Network Interface: 25GigE×4

Obsolete experiment node groups:

Group Model Term
Group A NEC Express5800 110Rc-1 2002 - 2011
Group B
Group C

NEC Express5800 120Ra-1

Group D

NEC Express5800 110Rc-1

Group E
Group F NEC Express5800 110Rg-1 2006 - 2016
Group G Proside Amazelast neo920 2007 - 2016
Group H HP ProLiant DL320 G5p 2009 - 2019
Group I Cisco UCS C200 M2 2011 - 2019
Group J 2011 - 2019
Group K 2011 - 2020
Group L 2011 - 2020
Group M 2011 - 2017
Group O SeaMicro SM15000-XE 2013 - 2018
Group N DELL PowerEdge C6220 2013 - 2021
Group P DELL PowerEdge R430 2017 - 2023