Internet Inter Orb Protocol

Usually known as IIOP.

In the CORBA protocol interoperability architecture, the standard GeneralInterOrbProtocol? (GIOP) is defined by the CommonObjectRequestBrokerArchitecture (CORBA) specification. The GIOP specification consists of the following elements:

A CommonDataRepresentation? (CDR) definition: CDR is a transfer syntax that maps InterfaceDefinitionLanguage (IDL) types from their native host format into a low-level bi-canonical representation, which supports both little-endian and big-endian formats. CDR-encoded messages are used to transmit CORBA requests and server responses across a network. All IDL data types are marshaled using the CDR syntax into an encapsulation, which is an octet stream that holds marshaled data.

GIOP message formats: The GIOP specification defines seven types of messages that send requests, receive replies, locate objects, and manage communication channels.

GIOP transport adapter: The GIOP specification describes the features of an ORB transport protocol that can carry GIOP messages. Such protocols must be reliable and connection-oriented. In addition, GIOP defines a connection management protocol and a set of constraints for GIOP message ordering. CORBA defines a TCP/IP mapping of GIOP, which is called the Internet Inter-ORB Protocol (IIOP).

More information on GIOP and IIOP are available at http://www.omg.org.

CategoryCorba