Method and device for data exchange

A network element for interchanging data using a quasi-real-time protocol, the network element comprising:

• a data connection module configured for setting up a persistent data connection;
• an interchanging module configured for interchanging a plurality of stanzas via the persistent data connection, a structure of each stanza of the plurality of stanzas comprising an attribute region and a payload, the attribute region containing a type characterization of the stanza, data for addressing a transmitter and a receiver of the stanza, and at least one quality of service attribute, the interchanging module further configured for evaluating the at least one quality of service attribute on an application layer of at least one network element involved in interchanging the data;
• and
• a handling module configured to handle, without performing an inspection of the payload of a respective stanza of the plurality of stanzas, the respective stanza with respect to other stanzas of the plurality of stanzas using the quality of service attribute, wherein handling the respective stanza comprises prioritizing interchanging the respective stanza over interchanging at least one other stanza of the plurality of stanzas.

A non-transitory computer-readable storage medium storing instructions executable by a controller for interchanging data using a quasi-real-time protocol, the instructions comprising:

• setting up a persistent data connection via at least one network element, wherein data is interchanged over the persistent data connection by a plurality of stanzas;
• interchanging, over the persistent data connection, the data by at least one stanza, a structure of the at least one stanza comprising an attribute region and a payload, the attribute region containing a type characterization of the stanza, data for addressing a transmitter and a receiver of the stanza, and at least one quality of service attribute;
• evaluating the at least one quality of service attribute on an application layer of the at least one network element involved in interchanging the data;
• and
• delaying interchanging of the at least one stanza over at least one other different stanza based on the at least one quality of service without performing an inspection of the payload of the at least one stanza.