Configuration Files and Example of the script

• Router configuration file

  #
   sysname Router
  #
  interface Ethernet2/0/0.1
   dot1q termination vid 10
   arp broadcast disable
  #
  interface GigabitEthernet1/0/0
   ip address 10.2.1.1 255.255.255.0
  #
  ops
   script-assistant python riskwarning.py
  #
  return

• Example of the script riskwarning.py

  # coding=utf-8
  import ops         # Import the OPS module.
  import sys         # Import the sys module.
  # Subscription processing function
  def ops_condition (ops):
  	print("\r\n user.py: enter ops_condition()")         # Print information.
  	value, err_str = ops.cli.subscribe("cli1", "arp broadcast disable", enter=True, sync=True, sync_wait=60)      
     # Match the high-risk command arp broadcast disable.
  	print("\r\n reg_cli.subscribe.value: %-15d"%(value))
  	print("\r\n reg_cli.subscribe.err_str: %s"%(err_str))
  	key, value = ops.environment.get("_phase")         # Obtain the system environment variable _phase, indicating the phase running phase.
  	print("\r\n key:%s"%(key))
  	print("\r\n value:%s"%(value))
  	return 0
  # Work processing function
  def ops_execute (ops):
  	key, value = ops.environment.get("_cli_vty")          # Obtain the system environment variable _cli_vty, indicating the user channel.
  	a, b = ops.terminal.write("This command may result in route flapping on the entire network, affecting services. Are you sure to continue?[Y/N]:",vty = key)          # Display a warning message for the high-risk command on the terminal.
  	print a
  	print b
  	a, b = ops.terminal.read(maxLen = 200,timeout = 30,vty=key)          # Obtain the contents input by users from the terminal during interaction.
  # If Y or y is input, the system continues to executing the high-risk command arp broadcast disable.
  	if a == "Y" or a == "y":
  		return 1
  # If other values are input, the system will not execute the high-risk command.
  	else:
  		return 0