By Topic

Vertical and horizontal circuit/packet integration techniques for the future optical internet

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)

Hybrid circuit/packet networks where circuit and packet networks coexist are becoming attractive to support future Internet applications. They support both packet/ IP services and circuit/wavelength services. Packet services include traditional data services such as VPN, VoIP, and email, while dynamic circuit services include end-to-end bandwidth-intensive applications such as terascale science experiments. In present hybrid networks, such as ESnet, the bandwidth boundary between the circuit and packet sections of the network is fixed. However, a flexible boundary between the circuit and packet sections will enable cost-efficient bandwidth management in the network. Our study investigates two methods to dynamically migrate capacity between the circuit and packet sections, called vertical stacking and horizontal partitioning, and serves as a tutorial. In vertical stacking, the backup capacity of wavelength circuits can be dynamically exchanged between packet and wavelength services while ensuring survivability. The backup capacity can be used to protect wavelength services in the event of a failure and route packet traffic otherwise. In horizontal partitioning, the excess capacity on links in the packet section can be loaned to circuit services. We have conducted experiments using a snapshot of real traffic on ESnet with horizontal partitioning. Control mechanisms for our approaches that can be operational in ESnet are presented.

Published in:

IEEE Network  (Volume:27 ,  Issue: 1 )