Error with tclsh

[aguante_boca]

Dear Fellows,

I believe that I should have started with this issue because I cannot run tclsh on a multilayer switch.

When I try to execute "tclsh" command I receive this message:

SWITCH#tclsh

Translating "tclsh"...domain server (X.X.X.X)

% Unknown command or computer name, or unable to find computer address

The equipment is a MLS C3550 - Version 12.2(35)SE3

Is there any wrong with the IOS version?

Thanks in advanced!

[Liam Kenneally · Accepted solution]

Hi,

It appears that Tcl is not supported on C3550/60 platforms:-

TCL scripting:

3550:
sw3#sh ver | i IOS
Cisco IOS Software, C3550 Software (C3550-IPSERVICESK9-M), Version 12.2(25)SEE2,
  RELEASE SOFTWARE (fc1)
sw3#t?
telnet  terminal  test  traceroute  tunnel <-no tcl

3560:
sw1#sh ver | i IOS
Cisco IOS Software, C3560 Software (C3560-IPSERVICESK9-M), Version 12.2(25)SEE2,
  RELEASE SOFTWARE (fc1)
sw1#t?
telnet  terminal  test  traceroute  tunnel <-no tcl

It is possible to set up an automated ping test similar to a TCL script  on these device we can use a macro to get the same functionality as a simple TCL ping script:

3550:
sw3(config-if)#do sh ip int br | e ass
Interface              IP-Address      OK? Method Status                Protocol
Loopback0              100.0.0.100     YES manual up                    up
Loopback1              100.0.1.100     YES manual up                    up
Loopback2              100.0.2.100     YES manual up                    up
sw3(config-if)#macro name PING
Enter macro commands one per line. End with the character ‘@’.
do ping 100.0.0.100
do ping 100.0.1.100
do ping 100.0.2.100
@
sw3(config)#macro global apply PING

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 100.0.0.100, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 100.0.1.100, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 100.0.2.100, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

3560:
sw1(config-if)#do sh ip int br | e ass
Interface              IP-Address      OK? Method Status                Protocol
Loopback0              10.0.0.100      YES manual up                    up
Loopback1              10.0.1.100      YES manual up                    up
Loopback2              10.0.2.100      YES manual up                    up
sw1(config-if)#macro name PING
Enter macro commands one per line. End with the character ‘@’.
do ping 10.0.0.100
do ping 10.0.1.100
do ping 10.0.2.100
@
sw1(config)#macro global apply PING

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.100, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.1.100, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/8 ms
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.2.100, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/8 ms

Please note this is copied and pasted from my study notes all credit goes to the auther cciepursuit

http://cciepursuit.wordpress.com/2007/08/27/

HTH

Kind Regards,

Liam

[Peter Paluch · Accepted solution]

Hello Olivier and Liam,

The TCL seems to be supported on the 3560 after all:

SW-Dist1#sh ver | i IOS
Cisco IOS Software, C3560 Software (C3560-IPBASEK9-M), Version 12.2(52)SE, RELEASE SOFTWARE (fc3)
SW-Dist1#tcl?
tclquit  tclsh  
SW-Dist1#tcl

However, this is a 12.2(52)SE IPBASE. I am trying to find out what is the first IOS version for 3560 Catalyst switches that included the TCL interpreter.

Best regards,

Peter

[Peter Paluch · Accepted solution]

Hello Olivier and Liam,

It seems that the first TCL support appeared in 12.2(46)SE as the Software Configuration Guide for this IOS version is the first one that mentions the Embedded Event Manager in combination with TCL applets.

The Cisco Feature Navigator was not helpful here, sadly - it thinks the 3560 series does not support the TCL at all.

Best regards,

Peter

[Liam Kenneally · Accepted solution]

I think its time my lab got an IOS update . I did double check the feature navigator before I posted. Weird that it is not listed on there.

Thanks for the update.

Kind Regards,

Liam

[Peter Paluch · Accepted solution]

Hello Liam,

You are welcome. Yeah, the Feature Navigator has had some incomplete information for quite a time. It's been made significantly faster but it seems not to be as precise/up-to-date as before.

Best regards,

Peter

[aguante_boca]

Dear Fellows,

Thank you very much for your help.

According to Cisco (http://www.cisco.com/web/about/security/intelligence/securetcl.html) the TCL is supported since IOS Version 12.3(2)T and 12.2(25), that is why I beleive my IOS (Version 12.2(35)SE3) could support this command.

Am I right?

Thanks again for your help!

[Peter Paluch · Accepted solution]

Hello Olivier,

the TCL is supported since IOS Version 12.3(2)T and 12.2(25), that  is why I beleive my IOS (Version 12.2(35)SE3) could support this  command.

Sadly, it is not that easy. This information is related to IOS versions for routers. However, the IOS versioning for switches was independent. The IOS version 12.2(25) for routers is not generally related to IOS version 12.2(25) for switches. This is probably a historical thing - Cisco first produced routers, and only started manufacturing switches later. The IOS for switches was obviously branched off the IOS for routers but was then developed, at least to a certain extent, independently. In fact, there are many commands for switches that are not described in IOS documentation, only in the documentation for a particular switch platform. There is no precise documentation about this - it's just years of experience I am now commenting upon.

Cisco has since aligned the IOS versioning with the transition to the version 15.x and beyond. Hopefully, things will get more simple.

Best regards,

Peter

[aguante_boca]

Dear Fellows,

Finally I solved my issue with the kron scheduler.

I do not need TCLSH command at this moment.

Thanks very much for your help!