'Internal parser function for L{_parseServer} to convert the string
arguments into structured arguments for the L{TCP6ServerEndpoint}
@param reactor: An L{IReactorTCP} provider.
@param port: The port number used for listening
@type port: int
@param backlog: Size of the listen queue
@type backlog: int
@param interface: The hostname to bind to
@type interface: str'

def _parseServer(self, reactor, port, backlog=50, interface='::'):

    port = int(port)
    backlog = int(backlog)
    return TCP6ServerEndpoint(reactor, port, backlog, interface)
