Building network automation solutions

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Executing IOS commands from Tcl shell

The Tcl procedures used to execute IOS commands in Embedded Event Manager (cli_open, cli_write …) don’t work when you start Tcl shell from command line interface. To execute IOS commands in this context, use:

  • exec command to execute an exec-level command, for example exec “show ip route”
  • ios_config mode command to configure the router

If the first parameter of the ios_config command is a global configuration command, you shall omit the second parameter (for example, ios_config “hostname router”). To configure a parameter in one of the sub-configuration modes (for example, interface state), use the first parameter to specify the configuration mode and the second parameter as the actual configuration command (for example, ios_config “interface loop 0” “no shutdown”).

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