| The technique background of this dissertation is router testing, which has drawn worldwide attention since IPv6 came into view. To enable a smooth transition from IPv4 to IPv6, routers supporting IPv4 only, IPv6, and IPv6 encapsulated in IPv4 will co-exist for some time, and this complicates router testing. Moreover, existing testing methods such as Loop-back Test Method (LTM) and Transverse Test Method (TTM) are not catered for testing modern routers with multi-ports. All these considerations have stimulated the research activity on multi-port testing at Sichuan Network Communication Key Laboratory (SC-Netcom Lab).With the new MDSP-TTM (Multi-port Distributed Synchronized Parnell Transverse Test Method) introduced at SC-Netcom Lab, a Multi-Port Router - Distributed Concurrent Test System (MPR-DCTS) is under development. An MPR-DCTS takes two-layer architecture: at the top layer, a PC acts as the Multi-Port Test Manager (MPTM) and at the bottom layer, multiple TPTs (Two-Port Testers) to test a pair of ports with either LTM or TTM.Testing is governed by a test system through execution of test control data; therefore definition of test control data represents an important aspect in router testing. The work presented in this dissertation focuses on planning and specification of test suites, test groups, and test cases for an important routing protocol - BGP-4 (Border Gateway Protocol v.4). Author's contribution in this dissertation can be summarized as:A. A framework for BGP-4 test suite planning is provided with an emphasis on conformance testing.B. Test case definition techniques are discussed in some detail with an example test case specified with a standard test definition language - TTCN-3 for TPT.C. To demonstrate the feasibility of the newly defined Concurrent Multi-Port Test Definition Language (CMP-TDL), a multi-port test case is presented in this dissertation. Some experience gained in this practice has resulted in suggestions to improve CMP-TDL.
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