Optimized Link-State Routing (OSLR) is a routing protocol for mesh networks
. With the OSLR protocol, each WLAN node stores an image of the entire mesh network in routing tables and updates them by periodically sending Hello messages. The OLSR protocol optimizes routing by eliminating unstable radio links and reducing protocol-related network loads by bypassing multipoint relays, which corresponds to a minimization of hops. Each OSLR node is identified by its IP address
. The OSLR protocol is described in RFC 3626.