netmiko初窥

paramiko 和 pexpect在笔记里被跳过

因为，他们都可以被netmiko所取代，不想在他们身上浪费太多时间

netmiko

总体来讲还是很简单的，因为比较人性化

• 创建conn

  1 #!/usr/bin/env python
  2
  3 from netmiko import ConnectHandler
  4
  5 pynet1 = {
  6 ‘device_type‘: ‘cisco_ios‘,
  7 ‘ip‘: ‘184.105.xx.xx‘,
  8 ‘username‘: ‘pyclass‘,
  9 ‘password‘: ‘******‘,
 10 }
 11
 12 conn1 = ConnectHandler(**pynet1)
 13 outp = conn1.send_command("show run | inc logging")
 14 print outp

就这么简单就可以输出了

要注意它的ConnectHandler括号里的俩星号，标示用的，不能少

• 利用dir()探索一个全新的library

>>> dir(netmiko)
[‘ConnectHandler‘, ‘FileTransfer‘, ‘NetMikoAuthenticationException‘, ‘NetMikoTimeoutException‘, ‘NetmikoAuthError‘, ‘NetmikoTimeoutError‘, ‘SCPConn‘, ‘__all__‘, ‘__builtins__‘, ‘__doc__‘, ‘__file__‘, ‘__name__‘, ‘__package__‘, ‘__path__‘, ‘__version__‘, ‘a10‘, ‘alcatel‘, ‘arista‘, ‘avaya‘, ‘base_connection‘, ‘brocade‘, ‘cisco‘, ‘dell‘, ‘enterasys‘, ‘extreme‘, ‘f5‘, ‘fortinet‘, ‘hp‘, ‘huawei‘, ‘juniper‘, ‘linux‘, ‘netmiko_globals‘, ‘ovs‘, ‘paloalto‘, ‘platforms‘, ‘quanta‘, ‘scp_handler‘, ‘ssh_connection‘, ‘ssh_dispatcher‘, ‘ssh_exception‘]
>>>

>>> dir(netmiko.ConnectHandler)
[‘__call__‘, ‘__class__‘, ‘__closure__‘, ‘__code__‘, ‘__defaults__‘, ‘__delattr__‘, ‘__dict__‘, ‘__doc__‘, ‘__format__‘, ‘__get__‘, ‘__getattribute__‘, ‘__globals__‘, ‘__hash__‘, ‘__init__‘, ‘__module__‘, ‘__name__‘, ‘__new__‘, ‘__reduce__‘, ‘__reduce_ex__‘, ‘__repr__‘, ‘__setattr__‘, ‘__sizeof__‘, ‘__str__‘, ‘__subclasshook__‘, ‘func_closure‘, ‘func_code‘, ‘func_defaults‘, ‘func_dict‘, ‘func_doc‘, ‘func_globals‘, ‘func_name‘]
>>>
>>>

• find_prompt()

 print conn1.find_prompt()

• send_config_set()
  命令是以数组的形式pass进去的

 18 config_commands = [‘logging buffered 19999‘]
 19 outp = conn1.send_config_set(config_commands)
 20 print outp

• 连接juniper设备

以srx为例

 21
 22 srx = {
 23 ‘device_type‘: ‘juniper‘,
 24 ‘ip‘: ‘184.105.xx.xx‘,
 25 ‘username‘: ‘pyclass‘,
 26 ‘port‘: 22,
 27 ‘password‘: ‘******‘,
 28 }
 29
 30 conn2 = ConnectHandler(**srx)
 31 outp = conn2.send_command("show arp")
 32 print outp
 33
 34 print dir(conn2)
 35 print dir(conn1)

可以看到conn1 conn2这俩connection的命名空间是不太一样的

注意看config_mode()和check_config_mode()

• config_mode() and check_config_mode()
  check_config_mode()返回布尔值, True就说明现在正在config mode

config_mode()进入cofig mode
exit_config_mode退出config mode

• commit()

这个就是juniper的commit

 conn2.commit()