Dynamic DiffServ Configuration Using COPS-PR

This paper presents a framework for managing dynamic Service Level Specification (SLS) in Differentiated Services (diffserv) networks. In the considered scenario, the configuration of edge routers must be updated according to a time-schedule or at the occurrence of an external event. The framework is based on the IETF standards concerning diffserv management. According to these standards, the device configuration is represented in terms of a diffserv PIB which is distributed among the managed devices using the COPS-PR protocol. By exploring the COPS-PR facilities, it is possible to define alternative strategies for updating the PIB information in the managed devices. This work describes, compares and evaluates three possible strategies. In our evaluation scenario, the bandwidth available for the COPS-PR traffic is constrained, permitting to establish a realistic evaluation of the proposed strategies in a commercial diffserv environment.

• Type: Conference
• Year: 2005
• Where: LCN
• Authors: André Beller, Edgard Jamhour, Manoel Camillo Penna
• Keywords: DiffServ, Diffserv Pib, LCN 2005, Standards Concerning Diffserv