netmiko.ssh_exception.NetMikoTimeoutException #1151
Comments
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Are you changing the hostname by any chance? Also can you enable logging and post that here, see this link: https://github.com/ktbyers/netmiko/blob/develop/COMMON_ISSUES.md#enable-netmiko-logging-of-all-reads-and-writes-of-the-communications-channel |
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Im running python on a network automation machine inside GNS3. debug = True def read_until_pattern(self, *args, **kwargs): I run again de script to configure equipment and : Preparing to config During handling of the above exception, another exception occurred: Traceback (most recent call last): During handling of the above exception, another exception occurred: Traceback (most recent call last): Run the script on a second try and it goes fine! |
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@nonioAtoz Try setting iosv_l2 = {
'device_type': 'cisco_ios',
'ip' : '192.168.134.81',
'username' : 'nuno',
'password' : 'cisco',
'global_delay_factor': 4,
}Does that help? |
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It did nt work , but i ithink i have found the problem ( im also new to network devices and protocols and make a lot of mistakes):
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@nonioAtoz Okay, so I am assuming that means that your change was disconnecting the Linux automation server where Netmiko was running--thus causing the connection to break? |
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i was perfoming this commands on switch and this ports were configured and the the connection breaks . I also run the same problem when reseting switch configuration to defaults . |
I HAVE A SIMPLE SCRIPT USING NETMIKO MODULE, THAT FROM A FILE WITH CONFIGS, TRY TO CONFIGURE A CISCO SWITCH. THE PROBLEM IS THAT IT ONLY WORKS SOMETIMES IN A RANDOM WAY, LIKE I RUN THE SCRIPT ONE TIME , IT RAISES THIS ERROR, THEN I RUN AGAIN AND IT WILL CONFIGURE THE SWITCH. i ALSO DID A GOOGLE SEARCH AND THE BEST I COULD FIND WAS THIS : #212
the ERROR : File "/usr/local/lib/python3.5/dist-packages/paramiko/channel.py", line 699, in recv
out = self.in_buffer.read(nbytes, self.timeout)
File "/usr/local/lib/python3.5/dist-packages/paramiko/buffered_pipe.py", line 164, in read
raise PipeTimeout()
paramiko.buffered_pipe.PipeTimeout
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.5/dist-packages/netmiko/base_connection.py", line 519, in _read_channel_expect
new_data = self.remote_conn.recv(MAX_BUFFER)
File "/usr/local/lib/python3.5/dist-packages/paramiko/channel.py", line 701, in recv
raise socket.timeout()
socket.timeout
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "compara_Configura.py", line 73, in
output = net_connect.send_config_from_file(ficheiro)
File "/usr/local/lib/python3.5/dist-packages/netmiko/base_connection.py", line 1502, in send_config_from_file
return self.send_config_set(cfg_file, **kwargs)
File "/usr/local/lib/python3.5/dist-packages/netmiko/base_connection.py", line 1567, in send_config_set
output += self.exit_config_mode()
File "/usr/local/lib/python3.5/dist-packages/netmiko/cisco_base_connection.py", line 56, in exit_config_mode
exit_config=exit_config, pattern=pattern
File "/usr/local/lib/python3.5/dist-packages/netmiko/base_connection.py", line 1478, in exit_config_mode
if self.check_config_mode():
File "/usr/local/lib/python3.5/dist-packages/netmiko/cisco/cisco_ios.py", line 32, in check_config_mode
check_string=check_string, pattern=pattern
File "/usr/local/lib/python3.5/dist-packages/netmiko/cisco_base_connection.py", line 38, in check_config_mode
check_string=check_string, pattern=pattern
File "/usr/local/lib/python3.5/dist-packages/netmiko/base_connection.py", line 1448, in check_config_mode
output = self.read_until_pattern(pattern=pattern)
File "/usr/local/lib/python3.5/dist-packages/netmiko/base_connection.py", line 594, in read_until_pattern
return self._read_channel_expect(*args, **kwargs)
File "/usr/local/lib/python3.5/dist-packages/netmiko/base_connection.py", line 528, in _read_channel_expect
"Timed-out reading channel, data not available."
netmiko.ssh_exception.NetMikoTimeoutException: Timed-out reading channel, data not available.
the sCRIPT :
!/usr/bin/env python3
-- encoding: utf-8 --
"""
This script read the running config from a network device , and read previous known running config
from a file , and it compares it . if both are equal it does not do nothing .
if they are diferents try to configure the switch
"""
from netmiko import ConnectHandler
from netmiko.ssh_exception import NetMikoTimeoutException
from paramiko.ssh_exception import SSHException
from netmiko.ssh_exception import AuthenticationException
from show_run import show_run
iosv_l2 = {
'device_type': 'cisco_ios',
'ip' : '192.168.134.81',
'username' : 'nuno',
'password' : 'cisco'
'blocking_timeout':16,
'timeout': 60,
'session_timeout':60
}
Call fucntion to get running config of cisco network device and store in
a list " device_running_config"
device_running_config = show_run(iosv_l2)
for line in device_running_config:
line.splitlines()
print( device_running_config)
open a configuration file from the equipment that we know that is correct
ficheiro = open("backup_s1","r")
linhas = ficheiro.read().splitlines()
ficheiro.close()
print("################################################################")
print(linhas)
print("################################################################")
Compare 2 running configs - if they are equal do nothing . if they are
diferent config the network device from a file
file with the configuration commands of the network device
ficheiro = 's1_config'
if linhas == device_running_config:
else:
print( "###########################################################")
print ("they are diferent \n Preparing to config")
print ("############################################################")
try:
net_connect = ConnectHandler(**iosv_l2)
except (AuthenticationException):
print ('Authentication failure: ' + ip_address_of_device)
output = net_connect.send_config_from_file(ficheiro)
print (output)
Thanks you all !
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