Requirement:
1. Capture interface tunnel port each 5 minutes, if traffics > X, will capture other information.
2. Store those information to disk0/harddisk.

In fact, the requirement is very easy by Python + CRT, but customer couldn’t find a PC to continue to run python script, so only use EEM + TCL on ASR9k. And in TCL script, I use two function: foreach and scan.

Follow CLI need config before do script, if you change any variable or script, you need re-config “event manager policy tac_te.tcl username cisco”:

aaa authorization eventmanager default local
event manager environment _cron_entry1 */5 * * * *
event manager directory user policy disk0:
event manager policy tac_te.tcl username cisco persist-time 3600 type user

完整阅读

If customer want to focus a alarm on their NMS by SNMP Trap, they can config “snmp-server traps syslog”. But if customer no filter feature on NMS, they couldn’t find special alarm in all syslog, now we can use EEM + TCL to match customer requirement.

Follow TCL Script:

::cisco::eem::event_register_syslog pattern $_error_log occurs $_number period $_times maxrun 300
namespace import ::cisco::eem::*
namespace import ::cisco::lib::*

set alarm "***OOB_ERROR Happened!***"

sys_reqinfo_snmp_trapvar var temp oid 1.1.1.1.1.1.1.1 string $alarm
sys_reqinfo_snmp_trap enterprise_oid 1.3.6.1 generic_trapnum 6 specific_trapnum 2 trap_oid 1.1.1.1.1.1.1.1.1.1.1.1.1 trap_var temp

完整阅读

Python的课程终于结束了，真的很费时间，虽然拿到的分不高，但总算是从头到尾学了一遍，收获还是有的，下面是最终成绩：
Grade Achieved: 91.5% with Distinction

很期待用学到的知识去优化我之前写的CRT+python的脚本~
下面是课程备份，这些程序可能或多或少都存在一些问题，仅供自己以后复习：
Mini-project # 0 – “We want… a shrubbery!”
http://www.codeskulptor.org/#user37_anyV44QTvc_0.py

Mini-project # 2 – “Guess the number” game”
http://www.codeskulptor.org/#user38_bvOh0huwfS_8.py
完整阅读

下面是老师提到的方法，感觉不错就拿到这来了：

rock_group=set(["A", "B", "C", "D"])
#里面有4个陨石
def get_rid_of(rock_group, rock_del):
    remove_set = set([])
    #把要remove的陨石放到这个空集合中
    for i in rock_group:
    #遍历rock_group集合，每次i被集合中的元素赋值，一次一个，直到遍历全部
        if i == rock_del:
            remove_set.add(i)
            #如果是碰撞的陨石，加到remove集合中
    rock_group.difference_update(remove_set)
    #打印rock_group和remove两个集合不同的元素
    
get_rid_of(rock_group,"D")
print rock_group

1. 引用相关的module

import simplegui
import math
import random

2. 全局参量

WIDTH = 800 # 画布的宽
HEIGHT = 600 # 画布的高
score = 0 # 初始分数0
lives = 3 # 3条命
time = 0.5 # 时间为0.5
FRICTION = 0.95 #摩擦系数

完整阅读