ÖNORM EN 301814 V 1.2.2

The present document specifies the stage three (see CCITT Recommendation I.130 [1]) of the ATM Inter-Network Interface (AINI) for use to interconnect between PNNI and B-ISUP based ATM networks. The capabilities of the present document are limited to providing for dynamically establishing, maintaining, and clearing ATM connections between ATM networks. The AINI protocol is based on ATM Forum PNNI [2], [3] and [4] signalling specifications. The AINI signalling protocol defined in the present document facilitates the interworking of one network running PNNI internally with another network running B-ISUP (see references [12] to [1]) internally, as well as interworking of two networks running PNNI internally. In addition to defining the AINI signalling protocol, the present document also defines protocol interworking between AINI and PNNI, and between AINI and B-ISUP. Protocol interworking between AINI and any other protocol is not considered in the present document.