未检测到 Netmiko 模式

Question

我使用 cisco 2960X 交换机运行此代码。

from netmiko import ConnectHandler

network_device= {
    "host": "192.168.xxx.xxx",
    "username": "xxxx",
    "password": "xxxx",
    "device_type": "cisco_ios",
    "session_log": "netmiko_session.log"
}

connect= ConnectHandler(**network_device)
connect.enable()

interface_name= "GigabitEthernet1/0/10"

def send_command(command):
    return connect.send_command(command)
try:
    send_command('enable')
    send_command('configure terminal')
except Exception as e:
    print(e)
    print("Failed!")

但是在我遇到以下错误之后。

Pattern not detected: 'Switch\\#' in output.

Things you might try to fix this:
1. Explicitly set your pattern using the expect_string argument.
2. Increase the read_timeout to a larger value.
You can also look at the Netmiko session_log or debug log for more information.

Failed!

请检查下面的netmiko_session.log

Switch#
Switch#terminal width 511
Switch#terminal length 0
Switch#
Switch#enable
Switch#
Switch#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Switch(config)#

我重命名了交换机主机名。但也出现同样的错误。

Answer 1

如果您想更改配置，您应该考虑使用

ssh.send_config_set

方法：

from netmiko import ConnectHandler

network_device= {
    "host": "192.168.xxx.xxx",
    "username": "xxxx",
    "password": "xxxx",
    "device_type": "cisco_ios",
    "session_log": "netmiko_session.log"
}

connect = ConnectHandler(**network_device)
config_commands = [
    'hostname NEW_NAME',
    'interface Gi1/0/10',
    'description NEW_IF_NAME'
]
connect.enable()
connect.send_config_set(config_commands)
connect.save_config()
connect.disconnect()

当您发送命令“confterminal”时，提示符会更改为反映配置模式，并且它开始看起来像

Switch(config)#

，而netmiko仍在等待

Switch#

所以，如果你想一条一条地发送命令，你可以设置预期的提示或使用“send_command_timing”

# this one will just wait 2 seconds before thinking that the command was applied to the device
connect.send_command_timing('hostname NEW_NAME', read_timeout=2)
# this one will expect a custom string from the device after the command is entered
connect.send_command('hostname NEW_NAME', expect_string='(config)#')
# be aware, that if you enter "configure interface" mode prompt will also change
connect.send_command('interface gi1/0/10', expect_string='(config-if)#')