Matchmaker: Signaling for Dynamic Publish/Subscribe Applications

The publish/subscribe (pub/sub) paradigm provides content-oriented data dissemination in which communication channels are established between content publishers and content subscribers based on a matching of subscribers interest in the published content provided – a process we refer to as “matchmaking”. Once an interest match has been made, content forwarding state can be installed at intermediate nodes (e.g., active routers, application-level relay nodes) on the path between a content provider and an interested subscriber. In dynamic pub/sub applications, where published content and subscriber interest change frequently, the signaling overhead needed to perform matchmaking can be a significant overhead. We first formalize the matchmaking process as an optimization problem, with the goal of minimizing the amount of matchmaking signaling messages. We consider this problem for both shared and per-source multicast data (content) distribution topologies. We characterize the fundam...

• Type: Conference
• Year: 2003
• Where: ICNP
• Authors: Zihui Ge, Ping Ji, James F. Kurose, Donald F. Towsley
• Keywords: Content Forwarding State, Content Subscribers, ICNP 2003, Matchmaking, Network Protocols