Efficient algorithms for shared backup allocation in networks with partial information

Abstract. We study efficient algorithms for establishing reliable connections with bandwidth guarantees in communication networks. In the normal mode of operation, each connection uses a primary path to deliver packets from the source to the destination. To ensure continuous operation in the event of an edge failure, each connection uses a set of backup bridges, each bridge protecting a portion of the primary path. To meet the bandwidth requirement of the connection, a certain amount of bandwidth must be allocated on the edges of primary path, as well as on the backup edges. In this paper, we focus on minimizing the amount of required backup allocation by sharing backup bandwidth among different connections. We consider efficient sharing schemes that require only partial information about the current state of the network. In particular, the only information available for each edge is the total amount of primary allocation and the cost of allocating backup bandwidth on this edge. We con...

• Type: Journal
• Year: 2006
• Where: JCO
• Authors: Yigal Bejerano, Joseph Naor, Alexander Sprintson
• Keywords: Backup, Bandwidth Guarantees, JCO 2006, Primary Path