def open_x11_channel(self, src_addr=None):
return self.open_channel('<STR_LIT>', src_addr=src_addr)<EOL>
Request a new channel to the client, of type C{"x11"}.  This
is just an alias for C{open_channel('x11', src_addr=src_addr)}.

@param src_addr: the source address of the x11 server (port is the
    x11 port, ie. 6010)
@type src_addr: (str, int)
@return: a new L{Channel}
@rtype: L{Channel}

@raise SSHException: if the request is rejected or the session ends
    prematurely