A New Fast Backup Method for Bidirectional Multicast Traffic in MPLS Networks: Control Plane Procedures and Evaluation by Simulations

详细信息    查看全文

• 作者：Mohamad Chaitou
• 关键词：Simulation ; Fast recovery ; MPLS ; Multipoint to multipoint ; Scalability ; Traffic engineering
• 刊名：Journal of Network and Systems Management
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：25
• 期：1
• 页码：210-228
• 全文大小：
• 刊物类别：Computer Science
• 刊物主题：Computer Communication Networks; Computer Systems Organization and Communication Networks; Communications Engineering, Networks; Information Systems and Communication Service; Operation Research/Decis
• 出版者：Springer US
• ISSN：1573-7705
• 卷排序：25

文摘

Bidirectional multicast mechanisms are used to support multi-point to multi-point (MP2MP) traffic such as video-conferencing. These mechanisms are deployed today in multi-protocol label switching (MPLS) networks using the connectionless mode in which traffic engineering (TE) features such as bandwidth reservation and fast reroute in case of link and/or node failure are not defined. Indeed, TE procedures are defined in MPLS for unicast and multicast point-to-multipoint (P2MP) traffic only. Hence, MP2MP traffic that requires TE procedures is carried out using a full mesh of P2P or P2MP paths. Similarly, a full mesh of P2P and P2MP backup paths should be predefined in order to fast reroute traffic in case of a node failure. This leads to a major scalability problem since MPLS TE paths incur heavy overhead burden on MPLS nodes (CPU and memory). In this paper, we emphasize on fast reroute procedures using MP2MP TE paths. In particular, we define the control plane procedures that should be established. In addition, we present a simulation study that demonstrates the scalability amelioration when using MP2MP TE paths for fast rerouting instead of full mesh P2P and/or P2MP paths.