pxssh交换机自动刷限速模板
写个跟交换机相关的python脚本，利用pxssh自动向交换机上刷限速模板。
pxssh是从pexpect模块导入而来，pexpect 是一个用来启动子程序并对其进行自动控制的 Python 模块,它可以用来和像 ssh、ftp、passwd、telnet 等命令行程序进行自动交互。
我的交换机型号是思科的ASR9K：
RP/0/RSP0/CPU0:MYROUTER#sh version brief Thu Jan 21 16:15:44.443 UTC Cisco IOS XR Software, Version 5.1.3[Default] Copyright (c) 2015 by Cisco Systems, Inc. ROM: System Bootstrap, Version 2.04(20140424:063844) [ASR9K ROMMON], CDS-YANFA-TEST uptime is 9 weeks, 6 days, 11 hours, 16 minutes System image file is "bootflash:disk0/asr9k-os-mbi-5.1.3.sp5-1.0.0/0x100000/mbiasr9k-rp.vm" cisco ASR9K Series (P4040) processor with 8388608K bytes of memory. P4040 processor at 1500MHz, Revision 3.0 ASR-9001 Chassis
限速模板样式如下：
policy-map 5m class qos police rate 5 mbps conform-action transmit ! ! class class-default ! end-policy-map
开始前先安装pexpect:
pip install pexpect
python脚本：
$ cat router_addXianSu.py
#!/usr/bin/env python
# _*_ coding: utf-8 _*_
# This script is used to add router XianSu template for YanFaTest ASR9K.
from pexpect import pxssh #导入模块
#import getpass
hostname = '10.10.10.1'
username = 'admin'
password = 'mypassword'
#hostname = raw_input("Please input your hostname:").strip()
#username = raw_input('Please input your username:').strip()
#password = getpass.getpass('Please input your password:').strip()
s = pxssh.pxssh()
s.login(hostname, username, password, login_timeout=5, auto_prompt_reset=False) #注意这里的几个参数
print '******* HOST %s success login!**********'%hostname
print '*******router configure excute now******'
s.sendline('configure terminal')
s.prompt()
print s.before
for size in xrange(5,205,5):
print '*********add XianSu MuBan now***********'#添加从5m,10m,...,200m的限速模板
cmd = 'policy-map %sm'%size
print '*****%s*****'%cmd
s.sendline(cmd)
s.sendline('class qos')
cmd = 'police rate %s mbps'%size
print '*********police rate %s mbps'%cmd
s.sendline(cmd)
s.sendline('conform-action transmit')
s.sendline('show configuration')
s.prompt()
print s.before
s.sendline('commit')
s.prompt()
print s.before
continue
s.sendline('exit') #交换机执行完后退出
s.close() #退出,结束
相关链接：
https://github.com/pexpect/pexpect