ip link

def teardown_link(self, interface):
        """ip link
        """
        cmd = ['ip', 'link', 'delete', interface]
        stdcode, stdout = agent_utils.execute(cmd, root=True)
        if stdcode == 0:
            return agent_utils.make_response(code=stdcode)
        # execute failed.
        message = stdout.pop(0)
        return agent_utils.make_response(code=stdcode, message=message)