Abstract

This XEP provides a common framework for sending events over an XMPP network. These events can then be logged in event logs or analyzed by network monitors to analyze the status or operation of the network and its participants. The basic principle behind interoperable event logging over XMPP is the definition of a common XML element defining the event. This payload is then sent in a normal message stanza (i.e. with type='normal') to the recipient. The recipient in turn, if it understands the payload, can choose to store it in an event log, forward it or analyze it accordingly. There are various event log packages available, but none yet defined for XMPP or using a well-defined and known XML format. Therefore, this document defines such an XML format. This format is able to store Syslog [1] compliant event information, even though the Syslog event model has been somewhat extended. Also, in the use of the facility attribute, this XEP does not have the same restrictions compared to the Syslog specification. This document does not restrict the use of event messages to directed message stanzas alone. It may be envisioned that some would like to publish event information through Publish-Subscribe (XEP-0060) [2] or other mechanisms. It is not in the scope of this document to specify such transports however, as it only deals with direct messages, but a brief list is provided in the Security Considerations section.