CODEWITHSUNDEEP
network-programmingautomationcisconetmiko
Brun
Brun

Reputation: 9

Netmiko : connecting to a router, Invalid parameter ^

i was trying to connect to a router and to just get the result of a one command the code is below :

from netmiko import ConnectHandler 

router = { "device_type": "xxxx", 
"host": "xxxx", 
"username": "xxxx", 
"password": "xxxx", 

} 

command = "show arp all" 

net_connect= ConnectHandler(**router)
output = net_connect.send_command(command) 

print(output)

and i get this error ' Error: Invalid parameter ^ ' i don't undrestand where is the problem !

Can someone figure out the error please !

Upvotes: 0

Views: 275

Answers (2)

Baris Ozensel
Baris Ozensel

Reputation: 463

One another approach is to send "terminal length 0" command before sending "show arp all" command. You should also send "show arp all" command with netmiko timing method, so that all outputs should be collected till the bottom line.

command = "show arp all" 
net_connect= ConnectHandler(**router)
net_connect.send_command("terminal length 0")
output = net_connect.send_command_timing(command) <<<<<<<<<<<<

Just a sample code helps to get "show interface description" data.

asr9k = {
    "host" : "10.10.10.10",
    "username" :"admin",
    "password" :"admin",
    "port" : 22,
    "device_type" : "cisco_xr",
 }

con = ConnectHandler(**asr9k)
con.enable()

data_to_parse = con.send_command_timing('show interface description')

Upvotes: 0

Tes3awy
Tes3awy

Reputation: 2266

I think the error is in the command itself. There is no all in the command. Please consider sending show arp or show ip arp without all. Check out this link. You can also add "session_log": "router.log" to the router's dictionary and find the invalid parameter message in the router.log file.

The log file shows you what is happening in the CLI on the device.

Try doing something like:

router = {
    "device_type": "xxxx",
    "host": "xxxx",
    "username": "xxxx",
    "password": "xxxx",
    "session_log": "router.log"  # <--- this line
}

cmd = "show arp"  # or "show ip arp"

net_connect = ConnectHandler(**router)
arp_output = net_connect.send_command(cmd)
net_connect.disconnect() # to clear the vty line when done

print(arp_output)

Upvotes: 0

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