Service Overlay Networks: SLAs, QoS and Bandwidth Provisioning

We advocate the notion of service overlay network (SON) as an effective means to address some of the issues, in particular, end-to-end QoS, plaguing the current Internet, and to facilitate the creation and deployment of value-added Internet services such as VoIP, Video-on-Demand, and other emerging QoS-sensitive services. A SON purchases bandwidth with certain QoS guarantees from individual network domains via bilateral service level agreement (SLA) to build a logical end-to-end service delivery infrastructure on top of existing data transport networks. Via a service contract, users directly pay the SON provider for using the valueadded services provided by the SON. In this paper we study the bandwidth provisioning problem for a service overlay network which is critical to the cost recovery in deploying and operating value-added services over the SON. We mathematically formulate the bandwidth provisioning problem, taking into account various factors such as SLA, service QoS, traffic ...

• Type: Conference
• Year: 2002
• Where: ICNP
• Authors: Zhenhai Duan, Zhi-Li Zhang, Yiwei Thomas Hou
• Keywords: Bandwidth Provisioning Problem, Computer Networks, ICNP 2002, Service Overlay Network, SON Purchases Bandwidth