Method of Batch Backup Switch Configuration Using python telnetlib

The telnetlib module is used. First, log in to the switch, list and obtain the name of the configuration file, and then transfer the configuration file to the file server through tftp protocol. In order to avoid overwriting the configuration file, the backup configuration file name system 1 is added with the date to distinguish it.

1. There are several login methods and passwords, which are lazy. They are distinguished by different lists. If the passwords of each switch are different, extra processing is needed.

2. There are many types of configuration files for switches, which are also distinguished by lists.

3. Some switches support ftp and sftp, but tests show that some switches have corresponding client commands, but there are always transmission problems. You can't configure every switch as an ftp server, which is insecure and inconvenient. Finally, tftp is adopted to solve the problem. tftp is relatively simple, and there is no way to create directories to distinguish backups from different dates. Fortunately, the configuration file has added dates to distinguish, so it can be run so-so.

import telnetlib,sys

from datetime import date
today=date.today()
print(today)
ipaddrset1=['192.168.1.19','192.168.1.29','192.168.1.59']
ipaddrset2=['192.168.1.39','192.168.1.49','192.168.1.69','192.168.1.56','192.168.1.6','192.168.1.9','192.168.1.24',
      '192.168.1.72','192.168.1.73','192.168.1.74','192.168.1.75','192.168.1.76','192.168.1.41','192.168.1.16','192.168.1.32',]
ipaddrset3=['192.168.1.51','192.168.1.52','192.168.1.53','192.168.1.54','192.168.1.55',
      '192.168.1.15','192.168.1.16','192.168.1.22','192.168.1.23','192.168.1.25','192.168.1.26','192.168.1.27',
      '192.168.1.28','192.168.1.7']
hostname='192.168.8.201'
tn=telnetlib.Telnet(hostname)
print(tn.read_until(b'Username:').decode('ascii'))
tn.write(b'**********\n')
print(tn.read_until(b'Password:').decode('ascii'))
tn.write(b'************\n')
print(tn.read_until(b'>').decode('ascii'))
for ipaddr in ipaddrset1:
  telnet_dest="telnet "+ipaddr
  tn.write(telnet_dest.encode('ascii')+b'\n')
  tn.read_until(b'Password:').decode('ascii')
  tn.write(b'**********\n')
  tn.read_until(b'>').decode('ascii')
  tn.write(b'dir\n')
  tn.read_until(b'>').decode('ascii')
  fn=str(today)+"_"+str(ipaddr)+"_vrpcfg.zip \n"
  cmdli="tftp 192.168.5.33 put vrpcfg.zip " +str(fn)
  tn.write(cmdli.ede('ascii'))
  tmp=tn.read_until(b'>').decode('ascii')
  if "successfully" in tmp:
    print(str(ipaddr)+" backup successfully!")
  else:
    print(str(ipaddr)+" backup NOT successfully!")
  tn.write(b'quit\n')
  tn.read_until(b'>')
for ipaddr in ipaddrset2:
  telnet_dest="telnet "+ipaddr
  tn.write(telnet_dest.encode('ascii')+b'\n')
  tn.read_until(b'Password:').decode('ascii')
  tn.write(b'**********\n')
  tn.read_until(b'>').decode('ascii')
  tn.write(b'dir\n')
  tn.read_until(b'>').decode('ascii')
  fn=str(today)+"_"+str(ipaddr)+"_startup.cfg \n"
  cmdli="tftp 192.168.5.33 put startup.cfg " +str(fn)
  tn.write(cmdli.encode('ascii'))
  tmp=tn.read_until(b'>').decode('ascii')
  if "successfully" in tmp:
    print(str(ipaddr)+" backup successfully!")
  else:
    print(str(ipaddr)+" backup NOT successfully!")
  tn.write(b'quit\n')
  tn.read_until(b'>')
for ipaddr in ipaddrset3:
  telnet_dest="telnet "+ipaddr
  tn.write(telnet_dest.encode('ascii')+b'\n')
  tn.read_until(b'Password:').decode('ascii')
  tn.write(b'************\n')
  tn.read_until(b'>').decode('ascii')
  tn.write(b'dir\n')
  tn.read_until(b'>').decode('ascii')
  fn=str(today)+"_"+str(ipaddr)+"_startup.cfg \n"
  cmdli="tftp 192.168.5.33 put startup.cfg " +str(fn)
  tn.write(cmdli.encode('ascii'))
  tmp=tn.read_until(b'>').decode('ascii')
  if "successfully" in tmp:
    print(str(ipaddr)+" backup successfully!")
  else:
    print(str(ipaddr)+" backup NOT successfully!")
  tn.write(b'quit\n')
  tn.read_until(b'>')

tn.write(b'exit\n')
tn.close()