async def _establish_connection(self):
"""Establishing SSH connection to the network device"""
logger.info(
"Host {}: Establishing connection to port {}".format(self._host, self._port)
)
output = ""
# initiate SSH connection
fut = asyncssh.connect(**self._connect_params_dict)
try:
self._conn = await asyncio.wait_for(fut, self._timeout)
except asyncssh.DisconnectError as e:
raise DisconnectError(self._host, e.code, e.reason)
except asyncio.TimeoutError:
raise TimeoutError(self._host)
self._stdin, self._stdout, self._stderr = await self._conn.open_session(
term_type="Dumb", term_size=(200, 24)
)
logger.info("Host {}: Connection is established".format(self._host))
# Flush unnecessary data
delimiters = map(re.escape, type(self)._delimiter_list)
delimiters = r"|".join(delimiters)
output = await self._read_until_pattern(delimiters)
logger.debug(
"Host {}: Establish Connection Output: {}".format(self._host, repr(output))
)
return output
async def _establish_connection(self):
"""Establish SSH connection to the network device"""
logger.info('Host {}: Establishing connection to port {}'.format(self._host, self._port))
output = ""
# initiate SSH connection
try:
self._conn = await asyncssh.connect(**self._connect_params_dict)
except asyncssh.DisconnectError as e:
raise DisconnectError(self._host, e.code, e.reason)
self._stdin, self._stdout, self._stderr = await self._conn.open_session(term_type='dumb')
logger.info("Host {}: Connection is established".format(self._host))
# Flush unnecessary data
output = await self._read_until_prompt()
logger.debug("Host {}: Establish Connection Output: {}".format(self._host, repr(output)))
return output