Communications are the basis for the collaborative
activities in the TeamChaos 4-legged team. In this paper we
present the communications architecture developed both to let
teammates communicate, and to easy the debugging of robot
behaviors from external computers. Details of its implementation
on the aiBo robots are also given. Using this infrastructure we
describe a protocol for role exchange named Switch! that we have
created. We also describe the use of both the communication
architecture, and the Switch! protocol in the passing challenge
of the 2006 edition of the RoboCu
