Bandwidth Broker Implementation Circa-Complete and Integrable.pdfVIP

Bandwidth Broker Implementation: Circa-Complete and Integrable Shaleeza Sohail, Khoi Ba Pham, Richmond Nguyen and Sanjay Jha School of Computer Science and Engineering University of New South Wales, Sydney, Australia Correspondence Author: sohails@.au July 10, 2003 Abstract aggregate. SLAs are complex business related contracts that cover a wide range of issues, including network Keeping in mind the present network management re- availability guarantees, payment models and other le- search trends, it can be safely stated that in the near fu- gal and business necessities. SLA contains a Service ture enterprise networks and Internet Service Providers Level Specification (SLS) that characterizes aggregate (ISPs) will need a network management entity to dy- traffic profile and Per Hop Behavior (PHB) to be ap- namically manage QoS networks. DiffServ is one of the plied to each aggregate. To automate the process of SLS emerging QoS networks that introduces bandwidth bro- negotiation, admission control and configuration of net- ker as its logical network and policy management mod- work devices correctly to support the provisioned QoS, ule. Due to the complex and huge functionality pro- each DiffServ network may be added with a component vided by bandwidth broker, it has unfathomable num- called a Bandwidth Broker (BB) [4]. ber of semi explored research areas and numerous re- search groups are working on its implementation. The On the inter-domain level BB is responsible of nego- paper explains a bandwidth broker imple