Effect of the traffic shaping function of the EF class in a DiffServ queue architecture

Akio Kawabata; Takeshi Sakaguchi; Susumu Yamamoto; Shigeki Shimizu; Jun Nishikido; Hisashi Komura

doi:10.1117/12.482261

3 September 2002 Effect of the traffic shaping function of the EF class in a DiffServ queue architecture

Akio Kawabata, Takeshi Sakaguchi, Susumu Yamamoto, Shigeki Shimizu, Jun Nishikido, Hisashi Komura

Proceedings Volume 4907, Optical Switching and Optical Interconnection II; (2002) https://doi.org/10.1117/12.482261
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

Abstract

An integrated IP (Internet Protocol) network that can handle leased-line, voice, and data traffic, offers great advantages in simplifying the networks of communication carriers and reducing network costs compared with separate servicespecific networks. A key issue of such integrated IP networks will be to design a router that can efficiently handle each type of traffic strictly according to its QoS (Quality of Service). Diffserv (Differentiated Services) is a popular solution to handling multiple QoSs, so most routers tend to support it. In this paper, we propose a new DiffServ queue architecture featuring multiple EF (Expedited Forwarding) queues with traffic shaping functions. Because each EF queue has a traffic shaper, its QoS can be controlled without affecting other EF traffic. For example, when the leased line traffic is assigned to the first EF class and VoIP (Voice over IP) traffic to the second EF class, the VoIP traffic is transferred with high QoS even if the leased line traffic has bursty characteristics. This queue architecture can provide a low-latency, assured bandwidth for both leased-line and VoIP traffic. We evaluated the traffic characteristics of VoIP traffic by simulating this queue architecture using various bandwidths and voice codec types. The results indicate that this queuing mechanism can achieve lower latency and better QoS control than the usual DiffServ queue architecture without traffic shaping. The benefits of traffic shaping are more noticeable with low-bandwidth traffic.

Citation Download Citation

Akio Kawabata, Takeshi Sakaguchi, Susumu Yamamoto, Shigeki Shimizu, Jun Nishikido, and Hisashi Komura "Effect of the traffic shaping function of the EF class in a DiffServ queue architecture", Proc. SPIE 4907, Optical Switching and Optical Interconnection II, (3 September 2002); https://doi.org/10.1117/12.482261

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Surface plasmons

Network architectures

Computer architecture

Data modeling

Internet

Performance modeling

Telecommunications

Show All Keywords

Keywords/Phrases

Search In:

Publication Years