Re: TCL Scripts

From: Bob Sinclair (bob@bobsinclair.net)
Date: Fri Nov 18 2005 - 15:59:02 GMT-3

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Dave,

TCL support is not very well documented, IMHO. Depends on platform. The
Feature Navigator indicates support for TCL scripting in 12.3T. But it was
there in 12.2T versions on the 3640 and 2600.

HTH,

Bob Sinclair
CCIE #10427, CCSI 30427
www.netmasterclass.net

  ----- Original Message -----
  From: Schulz, Dave
  To: Bob Sinclair ; InderpalS@mindscapeit.com ; ccielab@groupstudy.com
  Sent: Wednesday, November 16, 2005 9:08 AM
  Subject: RE: TCL Scripts

Bob -

  I have a question on these tcl scripts also about what software level is
  supported. I have 12.3(5e) and I can't get into the tclsh....am I
  missing something?

Dave Schulz
Email: dschulz@dpsciences.com

  -----Original Message-----
  From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
  Bob Sinclair
  Sent: Wednesday, November 16, 2005 7:44 AM
  To: InderpalS@mindscapeit.com; ccielab@groupstudy.com
  Subject: Re: TCL Scripts

Inder,

  It may be that the router is actually doing the pings, but is just not
  printing the results to the screen. You could test this with debug ip
  icmp on
  a target box. Try the version below. Seems to work on X8XX s.

  foreach addr {
  172.16.123.1
  172.16.123.2
  127.16.123.3
  } {puts [exec "ping $addr"]}

HTH,

  Bob Sinclair
  CCIE #10427, CCSI 30427
  www.netmasterclass.net

    ----- Original Message -----
    From: InderpalS@mindscapeit.com
    To: ccielab@groupstudy.com
    Sent: Wednesday, November 16, 2005 6:57 AM
    Subject: FW: TCL Scripts

    Hi, Looking for someone useful tips on the usage of tcl scripts. I
  used a
    sample tcl script but it gave me no result. The sample of tcl script,
  igp
    table and result is given below. My router is 1841 ios 12.4(1a)

Cheers,
inder

_____

    From: Niche [mailto:jackyliu419@gmail.com]
    Sent: Wednesday, November 16, 2005 2:46 PM
    To: Inderpal Singh, Mindscape IT
    Subject: Re: TCL Scripts

Hi there,

    Have you try to use the TCL script on testing the subnet 147.16.x.0?
  It's
    kinda strange cause the router accepted your script but didn't even
  popped
    out any result (even no ping unreachable). Try to post your question
  in the
    mailing list and see any shed some light as well, remember post your
  IOS
    version and router model.

Cheers~
Jacky

    On 11/16/05, InderpalS@mindscapeit.com
  <mailto:InderpalS@mindscapeit.com>
    <InderpalS@mindscapeit.com <mailto:InderpalS@mindscapeit.com> >
  wrote:

    I got it Jacky. I was under the impression that the script is stored
  in
    nvram once to enter it. Now i treid it on one router which has got all
    required routes in routing but tcl script does not give any results.

My IGP table....

Gateway of last resort is not set

         4.0.0.0/32 <http://4.0.0.0/32> is subnetted, 1 subnets
    O 4.4.4.4 <http://4.4.4.4> [110/65] via 150.50.40.4
    <http://150.50.40.4> , 00:00:43, Serial0/0/0
         5.0.0.0/32 <http://5.0.0.0/32> is subnetted, 1 subnets
    C 5.5.5.5 <http://5.5.5.5> is directly connected, Loopback1
         147.16.0.0/16 <http://147.16.0.0/16> is variably subnetted, 7
  subnets,
    2 masks
    O E1 147.16.1.0/24 <http://147.16.1.0/24> [110/84] via 150.50.40.4
    <http://150.50.40.4> , 00:00:43, Serial0/0/0
    O 147.16.5.5/32 <http://147.16.5.5/32> [110/65] via 150.50.40.4
    <http://150.50.40.4> , 00:00:43, Serial0/0/0
    O E1 147.16.2.2/32 <http://147.16.2.2/32> [110/84] via 150.50.40.4
    <http://150.50.40.4> , 00:00:43, Serial0/0/0
    O E1 147.16.7.0/24 <http://147.16.7.0/24> [110/84] via 150.50.40.4
    <http://150.50.40.4> , 00:00:43, Serial0/0/0
    O E1 147.16.6.0/24 <http://147.16.6.0/24> [110/84] via 150.50.40.4
    <http://150.50.40.4> , 00:00:43, Serial0/0/0
    O E1 147.16.5.0/24 <http://147.16.5.0/24> [110/84] via 150.50.40.4
    <http://150.50.40.4> , 00:00:43, Serial0/0/0
    O E1 147.16.4.0/24 <http://147.16.4.0/24> [110/84] via 150.50.40.4
    <http://150.50.40.4> , 00:00:43, Serial0/0/0
         150.50.0.0/16 <http://150.50.0.0/16> is variably subnetted, 10
    subnets, 2 masks

Here is what I am doing.........

    r5(tcl)#foreach addr {
    +>(tcl)#5.5.5.5
    +>(tcl)#4.4.4.4
    +>(tcl)#6.6.6.6
    +>(tcl)#} { ping $addr }

r5(tcl)#

I dont get any results...

Rgds, Inder

_____

    From: Niche [mailto:jackyliu419@gmail.com
  <mailto:jackyliu419@gmail.com> ]
    Sent: Wednesday, November 16, 2005 12:16 PM

To: Inderpal Singh, Mindscape IT
Subject: Re: TCL Scripts

Hi there,

    Have you test the script in your home lab or just use 2-3 routers to
  test?
    Actually there is no rocket-science inside, just create the script in
    notepad, paste it in the each router, hit enter, then a bunch of ping
  result
    pop-up.

    You don't need to type any additional command. The script has the
  command
    inside.

Try it first in a multiple routers environment then you will know.

Cheers~
Jacky

    On 11/16/05, InderpalS@mindscapeit.com
  <mailto:InderpalS@mindscapeit.com>
  <
    InderpalS@mindscapeit.com <mailto:InderpalS@mindscapeit.com> > wrote:

Hi jacky,

    Could you pls. write the steps I need to follow to ensure full
    reachbility...First step...I enter TCL shell using "tclsh"
  command...second
    step...I type "ping" or ....?

thks, Inder

_____

    From: Niche [mailto:jackyliu419@gmail.com
  <mailto:jackyliu419@gmail.com> ]
    Sent: Wednesday, November 16, 2005 11:49 AM

To: Inderpal Singh, Mindscape IT
Subject: Re: TCL Scripts

Hi there,

    In the lab, there are 6 routers and polly each router has more than 3
    interfaces with ip address. So with this script, you can ping from 1
  router
    to all the interfaces in all routers without typing the "ping x.x.x.x"
    command like 100 times. Consider the full reachability means, that
  mean you
    have to do the ping check from each router point of view.

    You save alot of time by doing this. Consider you need to do the check
  at
    least twice (after finish IGP and after reboot, at min. level)

Cheers~
Jacky

    On 11/16/05, InderpalS@mindscapeit.com
  <mailto:InderpalS@mindscapeit.com>
  <
    InderpalS@mindscapeit.com <mailto:InderpalS@mindscapeit.com> > wrote:

    Thanks....that works...I am able to apply the script but now I need to
  know
    how to use it for testing. I mean what commands can I use for testing
  full
    reachability. If its just a simple ping then why not use it from exec
  mode.

Cheers
Inder

_____

    From: Niche [mailto:jackyliu419@gmail.com
  <mailto:jackyliu419@gmail.com> ]
    Sent: Wednesday, November 16, 2005 10:09 AM
    To: Inderpal Singh, Mindscape IT
    Subject: Re: TCL Scripts

Hi there,

Try this,

    foreach addr {
    5.5.5.5 <http://5.5.5.5>
    4.4.4.4 <http://4.4.4.4>
    } { ping $addr }

Make sure you paste the whole script before you hit enter.

Cheers~
Jacky

    On 11/16/05, InderpalS@mindscapeit.com
  <mailto:InderpalS@mindscapeit.com>
    <InderpalS@mindscapeit.com <mailto:InderpalS@mindscapeit.com> >
  wrote:

    I pasted my router output below....I know I am doing something
  terribly
    wrong. I just pasted the script from your earlier response which is as
    below:-

    r5(tcl)#foreach addr {
    +>(tcl)#5.5.5.5
    +>(tcl)#4.4.4.4
    +>(tcl)#}
    wrong # args: should be "foreach varList list ?varList list ...?
  command"
    r5(tcl)#

Thks,
Inder

_____

    From: Niche [mailto:jackyliu419@gmail.com
  <mailto:jackyliu419@gmail.com> ]
    Sent: Wednesday, November 16, 2005 9:55 AM
    To: Inderpal Singh, Mindscape IT
    Subject: Re: TCL Scripts

Hi there,

Would you mind to send me the script that you wrote?

Cheers~
Jacky

    On 11/16/05, InderpalS@mindscapeit.com
  <mailto:InderpalS@mindscapeit.com>
    <InderpalS@mindscapeit.com <mailto:InderpalS@mindscapeit.com> >
  wrote:

Hi Jacky,

    I am really bad with scripting and may be doing something silly...I
  tried
    following and still it didn't work on 1841..

    r5(tcl)#foreach addr {
    +>(tcl)#5.5.5.5
    +>(tcl)#4.4.4.4
    +>(tcl)#}
    wrong # args: should be "foreach varList list ?varList list ...?
  command"
    r5(tcl)#

_____

    From: Niche [mailto:jackyliu419@gmail.com
  <mailto:jackyliu419@gmail.com> ]
    Sent: Wednesday, November 16, 2005 9:19 AM
    To: Inderpal Singh, Mindscape IT
    Cc: cciebfetzer@gmail.com <mailto:cciebfetzer@gmail.com> ;
    ccielab@groupstudy.com <mailto:ccielab@groupstudy.com>
    Subject: Re: TCL Scripts

Hi there,

    Yes, from my lab experience, all routers (2600&3600) (except 3550) can
  run
    the tcl script,

Sample that I used in the lab,

    tclsh
    foreach addr {
    1.1.1.1 <http://1.1.1.1>

    2.2.2.2 <http://2.2.2.2>
    x.x.x.x
    } {ping $addr}

    write this script on notepad, then paste it on each router for ping
  check
    then input "tclq" to make sure you return to normal command mode.

    Find a router and try it once or twice, you will know. It's actually
  pretty
    easy to get used to it.

Cheers~
Jacky

    On 11/16/05, InderpalS@mindscapeit.com
  <mailto:InderpalS@mindscapeit.com>
  <
    InderpalS@mindscapeit.com <mailto:InderpalS@mindscapeit.com> > wrote:

Hi Bryan,

    Still can't get this....how do we actually make use of TCL scripts in
  real
    ccie lab for testing. Does tcl script run ona ll lab routers? Do we
  need to
    write entire script before we can use it?

Thanks for your help..
Inder

    -----Original Message-----
    From: Bryan Fetzer [mailto: cciebfetzer@gmail.com
    <mailto:cciebfetzer@gmail.com> ]
    Sent: Tuesday, November 15, 2005 7:10 PM
    To: ccielab@groupstudy.com <mailto:ccielab@groupstudy.com>
    Subject: Re: TCL Scripts

    One such example that I am aware of:
    http://www.internetworkexpert.com/resources/tclshrsh.htm
    <http://www.internetworkexpert.com/resources/tclshrsh.htm>

Inderpal Singh wrote:

>Could someone shed some light on usage of TCL scripts to check / test
>configuration. May be some good url or few nice steps.
>
>Inder
>

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Next message: Anthony Sequeira: "Annoyance RE DOC-CD in RTP"
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Maybe in reply to: Inderpal Singh: "TCL Scripts"
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