This document contains generic and specific requirements for the IOS interfaces. The document contains the generic protocol descriptions that are used through all of the IOS interfaces. In addition, protocol stack and transport network requirements for each IOS interface are contained in this document. Details of the IOS application and signaling layer messages are contained in the respective interface documents [14], [15], [16], and [17].

Purpose

The purpose of this document is to describe the transport protocols and protocol stacks used on the interfaces, which make up the logical network model, and to indicate any unique aspects of these protocols that are relevant to the Interoperability Specification (IOS).