TITLE:
Buffer Management in the Sliding-Window (SW) Packet Switch for Priority Switching
AUTHORS:
Alvaro Munoz, Sanjeev Kumar
KEYWORDS:
Sliding Windows Switch, Priority Switching, Buffer Management
JOURNAL NAME:
International Journal of Communications, Network and System Sciences,
Vol.7 No.7,
July
25,
2014
ABSTRACT: Switch and router
architectures employing a shared buffer are known to provide high throughput,
low delay, and high memory utilization. Superior performance of a shared-memory
switch compared to switches employing other buffer strategies can be achieved
by carefully implementing a buffer-management scheme. A buffer-sharing policy
should allow all of the output interfaces to have fair and robust access to
buffer resources. The sliding-window (SW) packet switch is a novel architecture
that uses an array of parallel memory modules that are logically shared by all
input and output lines to store and process data packets. The innovative
aspects of the SW architecture are the approach to accomplishing parallel
operation and the simplicity of the control functions. The implementation of a
buffer-management scheme in a SW packet switch is dependent on how the buffer
space is organized into output queues. This paper presents an efficient SW
buffer-management scheme that regulates the sharing of the buffer space. We
compare the proposed scheme with previous work under bursty traffic conditions.
Also, we explain how the proposed buffer-management scheme can provide
quality-of-service (QoS) to different traffic classes.