Anjali Tricha, Scoglio Caterina, de Oliveira Jaudelice Cavalcante
Broad-band and Wireless Networking Laboratory, Georgia Institute of Technology, Atlanta, USA.
IEEE Trans Neural Netw. 2005 Sep;16(5):1242-55. doi: 10.1109/TNN.2005.853428.
The combined use of the differentiated services (DiffServ) and multiprotocol label switching (MPLS) technologies is envisioned to provide guaranteed quality of service (QoS) for multimedia traffic in IP networks, while effectively using network resources. These networks need to be managed adaptively to cope with the changing network conditions and provide satisfactory QoS. An efficient strategy is to map the traffic from different DiffServ classes of service on separate label switched paths (LSPs), which leads to distinct layers of MPLS networks corresponding to each DiffServ class. In this paper, three aspects of the management of such a layered MPLS network are discussed. In particular, an optimal technique for the setup of LSPs, capacity allocation of the LSPs and LSP routing are presented. The presented techniques are based on measurement of the network state to adapt the network configuration to changing traffic conditions.
差异化服务(DiffServ)和多协议标签交换(MPLS)技术的联合使用旨在为IP网络中的多媒体流量提供有保证的服务质量(QoS),同时有效利用网络资源。这些网络需要进行自适应管理,以应对不断变化的网络状况并提供令人满意的QoS。一种有效的策略是将来自不同DiffServ服务类别的流量映射到单独的标签交换路径(LSP)上,这会导致MPLS网络的不同层对应于每个DiffServ类别。本文讨论了这种分层MPLS网络管理的三个方面。特别地,提出了一种用于LSP建立、LSP容量分配和LSP路由的优化技术。所提出的技术基于对网络状态的测量,以使网络配置适应不断变化的流量状况。