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initial domain identifier (IDI)

The Initial Domain Identifier (IDI) is contained in the header of the OSI address and is part of the NSAP-formatted ATM address.

In the OSI address, the Initial Domain Identifier is a data field in the Network Service Access Points (NSAP); in ATM, it specifies the address assignment and the management affiliation. The IDI data field corresponds in the ATM addresses to the data fields of the Data Country Code (DCC), the International Code Designator (ICD) and the address information according to E.164.

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Englisch: initial domain identifier - IDI
Updated at: 20.11.2013
#Words: 120
Translations: DE