Multi-Layer, Multi-Domain Network Virtualization

Technological fields
Telecommunications Network Technologies
Keyword
  • Network virtualization
  • Intercloud
Laboratory organization
NTT Network Service Systems Laboratories

Download PDF (655KB)

Overview

“Virtual network (VN)” technology enables path provisioning and route switchover on a single physical infrastructure simply by using GUI. A VN consists of commercial IP routers and switches connected by VLAN, LSP*, and wavelength-path technologies. By sharing the network resource and granting access to the path and route on the VN, we can help prevent competition between traffic and enable independent simultaneous operations.

Features

  • A VN is provided as an IP network or Ethernet in response to the use of the service or application.
  • The VN can increase its bandwidth and change its topology in response to changing traffic demands by dynamically setting up, deleting, and switching “paths”.
  • The VN operator can set up and change the paths and routes that constitute the VN through intuitive operations on the GUI.
  • A “Global VN” can be constructed by sending path provision requests to other networks by using a standard protocol.

Application scenarios

  • Our technology provides not only communications service quickly but can dynamically respond to changes in the path architecture between data centers that correspond to the movement of virtual machines, and it can make Intercloud networks that can easily increase and decrease bandwidth.
  • * LSP: Label Switched Path
figure