Introduction embedded event manager eem along with tool command language tcl and applets enable you to customize the operation of the ios device. So what you know in tcl, you essentially can port over to expect scripts. Pronounced as tickle, tcl is a powerful but easy way to learn. Programming for cisco ios with tcl scripting programming language.
Tcl pronounced tickle is a scripting language that increases flexibility of cli commands. He has almost 22 years of experience with designing, implementing, and maintaining networks that have included nearly all networking technologies. Tcl scripting for cisco ios networking technology kindle edition by blair, raymond, durai, arvind, lautmann, john. Jan 04, 2012 this video shows how to use tcl scripting shell to ping multiple network interfaces in a cisco router environment. Tcl scripting for cisco ios networking technology 1, blair. Cisco ios scripting with tcl cisco 871 example remote. Download it once and read it on your kindle device, pc, phones or tablets. This video shows how to use tcl scripting shell to ping multiple network interfaces in a cisco router environment. It is a combination of a scripting language and its own interpreter that gets embedded to the application, we develop with it. Tcl fundamentals 1 this chapter describes the basic syntax rules for the tcl scripting language. The tcl programming language was created in the spring of 1988 by john ousterhout while working at the university of california, berkeley. Downloading and installing tcltk on ms windows duration.
Tcl was designed from the outset as a flexible language with a small core, that could be adapted in ways the original authors couldnt have foreseen. Tcl is the defacto standard embedded command language for electronic design automation eda and computeraided design cad applications. Nothing wrong with that and i have used shell scripts a lot when i was a unix admin but for networking most of what i have seen in terms of script languages has been tcl, perl and python. Jun, 2010 this script tells how to diagnostic router interface using tcl script. It was designed with the goal of being very simple but powerful. Tcl pronounced tickle or as an initialism is a highlevel, generalpurpose, interpreted, dynamic programming language. Cisco ios scripting with tcl configuration guide cisco ios xe. I want to using tcl script on mgcp gateway as autoattendant and have file its cisco. The comments in the script should be explanatory enough. You can visit the download page for the different activetcl versions here. Authors take a step by step approach, providing a reference to the tcl language from chapter 1 through chapter 2. Cisco ios scripting with tcl configuration guide, cisco.
Cisco nexus 3600 nxos programmability guide, release 9. All the eda tool flows from synopsys, cadence and mentor graphics use tcl as the primary scripting interface for their flows. Tcl script for router interface diagnostic youtube. Oct, 2012 this lesson teaches you how tcl scripting is utilized in cisco routers. This video tutorial is on the tool command language tcl shell and how you can use the tcl shell to automate your common everyday tasks on.
These powerful tools can be leveraged when selection from tcl scripting for cisco ios book. Tcl scripting for cisco ios networking technology blair, ray on. The cisco ios tcl shell is now standard on many cisco. Jul 23, 2018 cisco ios scripting with tcl configuration guide, cisco ios xe fuji 16. This script tells how to diagnostic router interface using tcl script. Interestingly enough, tcl is included within cisco ios as tclsh. Once created, the task is sent to an available agent on finesse. Heres some documentation on expect windows platform version, but its mostly the same on nix platforms as well. This page provides a quick overview of the main features of tcl. Tcl as a single command language in all eda tool flows ensures that a designer. This lesson teaches you how tcl scripting is utilized in cisco routers. Youll learn easy techniques for creating, using, and modifying tcl scripts that run directly on cisco network devices from the cisco ios command line.
You can use tcl to extract certain values in the output of a show command, perform switch configurations, run cisco nxos commands in a loop, or define embedded event manager eem policies in. Cisco ios scripting with tcl the cisco ios scripting with tcl feature provides the ability to run tool command language tcl version 8. An introduction to tcl scripting for cisco ios devices. It describes the basic mechanisms used by the tcl interpreter. Tcl and cisco ios software using tcl scripts in the network tool command language tcl, invented in the late 1980s by john k. Using expect scripting language to automate cisco configuration. The video describes the printing and setting variables in tcl. The origin of tcl tcl scripting for cisco ios book. Programming for cisco ios with tcl scripting programming. Tcl scripting for cisco ios networking technology 1. From the menu bar, select language and navigate to t and then click on tcl. Tcl scripting for cisco ios pages 251 300 text version. Cisco ios scripting with tcl configuration guide cisco. The best way to meet this challenge is to automate mundane or repetitive tasks wherever possible.
Jul 17, 2018 tcl scripts for cisco ios penetration testing. Jun 05, 2018 the video describes the printing and setting variables in tcl. Use features like bookmarks, note taking and highlighting while reading. Get your kindle here, or download a free kindle reading app. This book shows how to use the tcl scripting language to. Originally born out of frustration, according to the author, with programmers devising their own languages intended to be embedded into applications, tcl gained acceptance on its own. As a final comment, this book is a good starting point for a novice programmer that needs to interact with a cisco device but it can easily be replaced by cisco s documentation on eem and a tcl. After reading this youll probably be able to start writing simple tcl scripts on your own. Tcl scripting for cisco ios pages 151 200 text version. The cisco ios scripting with tcl feature provides the ability to run tool command language tcl version 8. The cisco ios xe scripting with tcl feature provides the ability to run tool command language tcl version 8. Ousterhout of the university of california, berkeley, is a dynamic programming or scripting language, an interpreter, and a c library.
Nothing wrong with that and i have used shell scripts a lot when i was a unix admin but for networking most of what i have seen. Download tcl scripting for cisco ios pdf ebook with isbn 10 1587059452, isbn 9781587059452 in english with 310 pages. Apr 24, 2015 this video tutorial is on the tool command language tcl shell and how you can use the tcl shell to automate your common everyday tasks on cisco ios devices. Apr 20, 2016 cisco ios scripting with tcl configuration guide. Expect will make your life a lot easier in cases like this.
The last chapter covers the issues of security in tcl scripting. Cisco ios scripting with tcl configuration guide, cisco ios. Tcl is a general purpose multiparadigm system programming language. With tcltools you can transform any cisco ios hardware into a pivoting station. For further details, see the prerequisites for signed tcl scripts. The title tcl scripting for cisco ios might make you think youll be able to drill the guts out of your router and utilise ios functions unknown to most, but thats not the case. For the latest feature information and caveats, see the release notes for your platform and. Oct, 2012 programming for cisco ios with tcl scripting programming language. Dec, 2008 discovered during cisco ccnp course, tcl originally from tool command language is a scripting language created by john ousterhout and introduced from ios version 12. Discovered during cisco ccnp course, tcl originally from tool command language is a scripting language created by john ousterhout and introduced from ios version 12. The cisco software feature documentation in this configuration guide often includes information about features that are shared across. Tcl interpreter and language basics this chapter covers the following topics.
Simple variables in tcl procedures arrays if command switch command files selection from tcl scripting for cisco ios book. The signed tcl scripts feature introduces security for the tcl scripts. Tcl scripts for cisco ios penetration testing github. Tcl supports multiple programming paradigms, including objectoriented. Cisco ios scripting with tcl cisco 871 example 05 mar 2012. Intended for scripting, rapid prototyping, embedding into applications, creation of guis tcltk.
You can use tcl to extract certain values in the output of a show command, perform switch configurations, run cisco nxos commands in a loop, or define embedded event manager eem policies in a script. He has leveraged embedded event manager eem and tool command language tcl scripts in. Jul 14, 2017 the cisco ios scripting with tcl feature provides the ability to run tool command language tcl version 8. Tcl casts everything into the mold of a command, even programming constructs like variable assignment and procedure definition. Cisco ios scripting with tcl command reference cisco. Tclscript ping test on cisco routers networking lab. Tcl for classbased qos mib indexes classbased qos mib is a very complex data structure with numerous crossindexes, making it very hard to find the exact snmp variable that should be monitored with an eem applet for example, the bit. The best way to meet this challenge is to automate mundane or. Tcl is a scripting language created by john ousterhout, founder and chairman of electric cloud, and a professor at stanford university. The cisco ios tcl shell was designed to allow customers to run tcl commands directly from the cisco ios cli prompt. Detailed steps about script signing and distribution present an excellent guide.
As a final comment, this book is a good starting point for a novice programmer that needs to interact with a cisco device but it can easily be replaced by ciscos documentation on eem and a tcl. Contains the operating system version, byte order, hardware, and operating system information example contents and usage. In todays post i will briefly introduce with a simple example how tcl scripting language can be used with the cisco ios. John ousterhout of the university of california, berkeley, designed it. Whenever a task is created on social miner via rest api, i can successfully query its status via xmpp or rest. Shell scripting is quite limited in what it can do when compared to a more general purpose scripting language such as perl or python.
In this book, three cisco experts show you how to use tcl scripting for cisco ios devices to do just that. Chapter 2 tcl interpreter and language basics 11 simple variables in tcl 12. Streamline cisco network administration and save time with tcl scripting cisco networking professionals are under relentless pressure to accomplish more, faster, and with fewer resources. Indeed, thanks to this flexibility, tcl has been used in everything from cisco routers and tivo set top boxes, to aols web servers, to the nbc television networks control center see the. Tcl scripting for cisco ios networking technology pdf download is the networking cloud computing tutorial pdf published by cisco press, 2010, the author is arvind durai, john lautmann, raymond blair. When you use tcl ivr applications, the gateway needs to know the url where the tcl script can be found, as well as the url of any audio file you want to use. Tcl with eem support in ios 5 using tcl scripts in the network 8 troubleshooting problems 8 monitoring the network 8 adding intelligence to cisco ios protocols 9 summary 9 references 9. Finding feature information, page 1 prerequisites for cisco ios scripting with tcl, page 1. Basically, the script will telnet to a list of devices specified by ip address, execute the snmp configuration, and then exit the session. For this feature to work, you must be running the following. It was then ported to windows, dos, os2, and mac osx.
An introduction to tcl scripting for cisco ios devices how. Tcl scripting for cisco ios networking technology pdf download. It is a scripting language that aims at providing the ability for applications to communicate with each other. Your software release may not support all the features documented in this module. Tcl scripting for cisco ios ebook by raymond blair. Use features like bookmarks, note taking and highlighting while reading tcl scripting for cisco ios networking technology. Expect utilizes the tcl language, and all of its commands as well as some of its own. Ciscoback ciscoback is a result of bachelors sthesis on university vsbtechnical university in ostrava, facult. Cisco ios scripting with tcl configuration guide, cisco ios xe fuji 16. There is no interaction with the tclsh and this example.
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