Scheduled System Maintenance on May 29th, 2015:
IEEE Xplore will be upgraded between 11:00 AM and 10:00 PM EDT. During this time there may be intermittent impact on performance. For technical support, please contact us at We apologize for any inconvenience.
By Topic

Supporting multiple classes of services in IP over WDM networks

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
$31 $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

2 Author(s)
Myungsik Yoo ; Dept. of Electr. Eng., State Univ. of New York, Buffalo, NY, USA ; Chunming Qiao

We consider the next generation optical Internet, where direct communication channels between IP entities are provided through an all-optical WDM layer. Since current IP provides only best effort service, supporting quality of service (QoS) has become a crucial issue. We propose a simple, yet efficient priority scheme to support basic QoS at the WDM layer of the optical Internet. Unlike existing approaches that depend on buffers (queues) and scheduling algorithms (e.g., fair queuing), our scheme does not mandate any buffer in the WDM layer in order to differentiate the services. The proposed scheme is based on the concept of using an offset time between a control (set-up) packet and the corresponding data burst as in optical burst switching (OBS). More specifically, by assigning different offset times to different classes, it is possible for a higher priority class to be isolated from lower priority classes. We quantify the offset time required for class isolation, and analyze the blocking probability of each class

Published in:

Global Telecommunications Conference, 1999. GLOBECOM '99  (Volume:1B )

Date of Conference: