scope:

Purpose and Scope

The purpose of this memo is to describe an additional OPTIONAL function and feature for TWAMP [RFC5357].

The scope of the memo is limited to specifications of the following features:

1. extension of the modes of operation through assignment of a new value in the Modes field to communicate feature capability and use,

2. the definitions of augmented start session and stop session commands (with corresponding acknowledgements), and

3. the definition of related procedures for TWAMP entities.

The motivation for this feature is the ability to start and stop individual test sessions at will, using a single TWAMP-Control connection.

When the Server and Control-Client have agreed to use the Individual Session Control mode during control connection setup, then the Control-Client, the Server, the Session-Sender, and the Session- Reflector MUST all conform to the requirements of that mode, as identified below. The original TWAMP-Control Start and Stop commands MUST NOT be used.