Archive for the ‘Swtiches’ Category


Cisco switch/router time setup to PST/PDT string

May 12, 2014

I am just tired when every time I have to type these two lines below in order to setup the clock on whatever switch/router I have to. So just copy and paste in config mode and you are done.


clock timezone PST -8
clock summer-time PDT recurring 2 Sun Mar 2:00 1 Sun Nov 2:00


Backup Csico routers and switches

March 5, 2013

I think my idea is secure, fast and easy to be implemented by anyone. No need of special software. All you need is tftp client. My stuff is working under Linux and I am not with “root” privileges when I am doing all that.

In the case I’m describing below is my router and is my Linux box. I am creating ACL #55 on the router, which ACL allows only the Linux box to have tftp access to it.

tftp-server nvram:startup-config 55

access-list 55 remark PERMIT hosts requesting TFTP access
access-list 55 permit

On the Linux box my “super” file is named “” and looks like:


/usr/bin/tftp -c get startup-config /home/jo/configs_backups/routers/Router_$(date “+%Y%m%d”)

and I do have crontab job running every Friday at 12:55 during the day:

55 12 * * 5 /home/jo/configs_backups/