Graham Mundell, Telecom New Zealand, Weymouth, Auckland, New Zealand.
You can create macros to run a series of commands on a Cisco switch. This can be handy if you're logged in to a remote device and want to change the configuration, but doing so will mean you lose management access part-way through. You can define a macro and run it; even though you lose management access part way through, the macro will continue to run.
To configure the macro:
- Enter configuration mode
- Use the command macro name
- Enter the commands you want the macro to run
- Finish with @
The example below shows how to change the management VLAN from 1 to 100. Removing the IP address from the current management VLAN will disconnect your telnet session, but the macro will still execute the rest of the commands.
config t
macro name Change-vlan
interface Vlan1
no ip address
shutdown
interface vlan100
ip address 172.29.159.6 255.255.255.252
no shutdown @
To run the macro:
macro global apply Change-vlan
The above tip is specific to Catalyst IOS that runs on very specific switches (like the 2950) and is not a standard in the majority of the remaining IOS versions available. Please refer to the configuration guide below for more information: http://www.cisco.com/en/US/docs/switches/lan/catalyst2950/software/release/12.1_22ea/SCG/swmacro.html
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