XP I-ETS 300353

Broadband integrated services digital network (B-ISDN). Asynchronus transfer mode (ATM). Adaptation layer (aal) specification. Type 1.

Le présent document décrit les interactions entre la couche d'adaptation (AAL) de la technique temporelle asynchrone (ATM) et la couche immédiatement supérieure, ainsi que le fonctionnement AAL d'homologue à homologue. Il est fondé sur la classification et l'organisation fonctionnelle de l'AAL décrites dans la Recommandation UIT-T 1.362. Le présent document réduit les options ouvertes dans cette Recommandation et décrit un sous-ensemble de la couche d'adaptation (AAL) de la technique temporelle asynchrone (ATM) de type 1 utilisé en Europe. Il donne en outre un modèle fonctionnel pour le transfert en mode circuit des données asynchrones, par la technique d'horodatage résiduel synchrone (SRTS) en combinaison avec le transfert de données structurées (SDT).

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