3.1 Initiator Details

The following figures represent the state machines for the initiator role.

Figure 1: State machine for initiator role when performing Route Check experiment

Figure 2: State machine for initiator role when performing Packet Pair experiment

Figure 3: State machine for initiator role when performing Probegap experiment

Applicable message request/response pairs for this role are defined as follows.

Sent by initiator	Sent by sink
Packet Pair Connection Handshake message	Connection Handshake Success message
Packet Pair Probe message	Packet Pair Summary message
Route Check Connection Handshake message	Connection Handshake Success message
Route Check Probe message	Route Check Summary message
Probegap Probe message	Probegap Probe message
Discard message	N/A

The remainder of this section will discuss the state machine in depth.