Hello Alfredo
Yes, it is possible to shutdown and enable specific ports based on time. The following example may shed some light on this:
When using EEM, you must create two applet timer policies, one to “shutdown” and the other to “no shutdown”. In the following example, the port will be shutdown every day at midnight, and brought back up every day at 8 am.
event manager applet shutdown_port
event timer cron cron-entry "0 0 * * *"
action 1.0 cli command "enable"
action 2.0 cli command "config t"
action 3.0 cli command "interface FastEthernet1/0/1"
action 4.0 cli command "shut"
action 5.0 cli command "end"
action 6.0 syslog msg "Interface FastEthernet1/0/1 has been shutdown"
event manager applet noshut_port
event timer cron cron-entry "0 8 * * *"
action 1.0 cli command "enable"
action 2.0 cli command "config t"
action 3.0 cli command "interface FastEthernet1/0/1"
action 4.0 cli command "no shut"
action 5.0 cli command "end"
action 6.0 syslog msg "Interface FastEthernet1/0/1 has been restored"
Keep in mind that this will work only if you are running IOS 12.2(40)SE or higher. Also it’s a good idea to have NTP configured on the switch when implementing time based scripts.
I hope this has been helpful!
Laz