COPSS: An Efficient Content Oriented Publish/Subscribe System

Abstract

Content-Centric Networks (CCN) provide substantial flexibility for users to obtain information without regard to the source of the information or its current location. Publish/ subscribe (pub/sub) systems have gained popularity in society to provide the convenience of removing the temporal dependency of the user having to indicate an interest each time he or she wants to receive a particular piece of related information. Currently, on the Internet, such pub/sub systems have been built on top of an IP-based network with the additional responsibility placed on the end-systems and servers to do the work of getting a piece of information to interested recipients. We propose Content-Oriented Pub/Sub System (COPSS) to achieve an efficient pub/sub capability for CCN. COPSS enhances the heretofore inherently pullbased CCN architectures proposed by integrating a push based multicast capability at the content-centric layer.We emulate an application that is particularly emblematic of a pub/sub environment-Twitter-but one where subscribers are interested in content (e.g., identified by keywords), rather than tweets from a particular individual. Using trace-driven simulation, we demonstrate that our architecture can achieve a scalable and efficient content centric pub/sub network. The simulator is parameterized using the results of careful microbenchmarking of the open source CCN implementation and of standard IP based forwarding. Our evaluations show that COPSS provides considerable performance improvements in terms of aggregate network load, publisher load and subscriber experience compared to that of a traditional IP infrastructure.

Consumer / Producer Communication with Application Level Framing in Named Data Networking

“…COPSS [CAJ11] introduces a push-based delivery mechanism using multicast in a content centric framework. At the content centric forwarding layer, COPSS uses a multiple-sender, multiple-receiver multicast capability with the use of Rendezvous Points (RP).…”

“…produce(h p , unique request name, service reply) as COPSS [CAJ11] and DDS-over-CDN-over-NDN [PWG12].…”

Reliable publish/subscribe in content-centric networks

“…Timely delivery of published information to subscribers is often an important consideration. It has been shown in [7][8][9] that the COPSS is able to efficiently handle the requirements of applications such as a content-focused Twitter-like pub/sub system [7] and applications with tight timeliness requirements such as online multiplayer gaming and content streaming [8].…”

“…Named Data Networking (NDN) [4] is one of the more popular examples of CCN and is based on a query response model. Our proposal for a publish/subscribe model, called the ContentOriented Publish/Subscribe System (COPSS) [7][8][9], is built on top of NDN with a new CCN-oriented multicast capability to meet the efficiency and scalability needs of large scale pub/sub systems. We believe the temporal separation of information generation and prior indication of interest is a highly desirable content centric feature.…”

“…Content Centric Networking (CCN) [1][2][3][4][5][6][7] seeks to transform content as a first-class entity. Rather than the current location-centric network architecture, CCN presents a networking paradigm that enables content based interaction.…”