GENA stands for General Event Notification Architecture.

GENA Base defines an HTTP notification architecture that transmits notifications between HTTP resources. An HTTP resource could be any object which might need to send or receive a notification, for example a distribution list, buddy list, print job, etc. It was defined in Internet-Draft "draft-cohen-gena-p-base-01.txt" (now expired).

GENA Base Client to Arbiter provides for the ability to send and receive notifications using HTTP over TCP/IP and administratively scoped unreliable multicast UDP. Provisions are made for the use of intermediary arbiters, called subscription arbiters, which handle routing notifications to their intended destination. It was defined in "draft-cohen-gena-client-00.txt" (now expired).


During July 13-14 1998 the University of California Irvine convened WISEN: the Workshop on Internet-Scale Event Notification. This event brought together a number of experts of various fields and included a presentation on GENA by Josh Cohen of Microsoft. Delegates showcased their event notification architectures and haggled over requirements of the same. Josh's final slide includes the bullet points "GENA is being implemented by Microsoft Products" and "Our wish is to collaborate to agree on a standard. GENA or other, we will comply."

Interest in event notification appears to have waned after 1998 as participants were unable to come to common definitions of what is required for the definition of notification services and protocols. GENA was briefly considered for use in the Internet Printing Protocol but found a niche as part of the Universal Plug and Play (UPnP) architecture.

Internet Drafts

* [ July 9, 1998]

Client to Arbiter
* [ June 24, 1999]
* [ September 6, 2000]

ee also

*Notification system for details on generic message relaying systems
*Virtual synchrony to learn about how event notification systems can offer stronger ordering and fault-tolerance properties.

External links

* [ WISEN]
* [ GENA page at]


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См. также в других словарях:

  • gêna — gêna …   Dictionnaire des rimes

  • Gena — bezeichnet: allgemein die Wange bei Insekten der Wangenbereich der Kopfkapsel unterhalb der Augen, siehe Gena (Insekt) Alem Gena, Stadt und Bezirk in der Region Oromia in Äthiopien Krokodil Gena, eine Figur aus den russischen Kinderbüchern um… …   Deutsch Wikipedia

  • genă — GÉNĂ, gene, s.f. (biol.) Element al cromozomilor care determină transmiterea şi manifestarea unor caractere ereditare. – Din fr. gène. Trimis de gall, 13.09.2007. Sursa: DEX 98  génă s. f., g. d. art. génei; pl. géne Trimis de siveco, 10.08.2004 …   Dicționar Român

  • GENA — pars illa vultus est, in qua nobilis ruboris purpura efflorescit, C. Paschal. Cor. l. 5. c. 4 De illis Plin. l. XI. c. 37. Infra oculos malae homini tantum quas prisci genas vocabant, XII. tabularum interdicto radi a feminis eas vetantes, Pudoris …   Hofmann J. Lexicon universale

  • Gena — Ge na, [L., the cheek.] (Zo[ o]l.) (a) The cheek; the feathered side of the under mandible of a bird. (b) The part of the head to which the jaws of an insect are attached. [1913 Webster] …   The Collaborative International Dictionary of English

  • gena — mejilla, carrillo Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010 …   Diccionario médico

  • gena- — obs. form of genea …   Useful english dictionary

  • gena — n.; pl. genae [L. gena, cheek] (ARTHROPODA: Insecta) 1. That part of an insect head on each side below the eyes, bordered by the frontal suture, and behind the eyes, by the occipital suture. 2. In Diptera, the region lying between the face and… …   Dictionary of invertebrate zoology

  • gena — 1gè·na s.f. 1. OB LE guancia: diffuso era per gli occhi e per le gene | di benigna letizia, in atto pio (Dante) 2. TS entom. ciascuno dei due scleriti che delimitano lateralmente la capsula cefalica degli insetti e in cui si trova l occhio… …   Dizionario italiano

  • Gena — Ge̱na [aus lat. gena, Gen.: genae = Wange, Backe] w; , Ge̱nae: = Bucca …   Das Wörterbuch medizinischer Fachausdrücke

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