Method clear_buffer

netmiko/base_connection.py:1456–1481

Read any data available in the channel.

(
        self,
        backoff: bool = True,
        backoff_max: float = 3.0,
        delay_factor: Optional[float] = None,
    )

        return prompt

    def clear_buffer(
        self,
        backoff: bool = True,
        backoff_max: float = 3.0,
        delay_factor: Optional[float] = None,
    ) -> str:
        """Read any data available in the channel."""

        if delay_factor is None:
            delay_factor = self.global_delay_factor
        sleep_time = 0.1 * delay_factor

        output = ""
        for _ in range(10):
            time.sleep(sleep_time)
            data = self.read_channel()
            data = self.strip_ansi_escape_codes(data)
            output += data
            if not data:
                break
            # Double sleep time each time we detect data
            log.debug("Clear buffer detects data in the channel")
            if backoff:
                sleep_time *= 2
                sleep_time = backoff_max if sleep_time >= backoff_max else sleep_time
        return output

    def command_echo_read(self, cmd: str, read_timeout: float) -> str:
        # Make sure you read until you detect the command echo (avoid getting out of sync)