Relp provides reliable event logging over the network.

relp (and hence) librelp assures that no message is lost, not even when connections break and a peer becomes unavailable. the current version of relp has a minimal window of opportunity for message duplication after a session has been broken due to network problems. in this case, a few messages may be duplicated (a problem that also exists with plain tcp syslog). future versions of relp will address this shortcoming.

please note that relp is a general-purpose, extensible logging protocol. even though it was designed to solve the urgent need of rsyslog-to-rsyslog communication, relp supports many more applications. extensible command verbs provide ample opportunity to extend the protocol without affecting existing applications.