Notification service on network management is an essential tool that helps to save network resources, such as bandwidth. A management notification is basically an event message that reports a resource?s internal state to an interested manager. A complete notification support is not accomplished via simple tasks anymore, for example, restricted to notifying managers from the same administrative domain of the managed devices. Due to huge changes on current network usage, this management topic needs to be reviewed in the light of modern technologies and requirements. In this paper we present a notification service integrated in a P2P-based network management solution called ManP2P. We also present an experimental evaluation regarding propagation delay and processing costs. We believe that with our solution it is possible to enhance P2P-based network management advantages without paying a great performance cost.