As I need to store client and link latency information in time and draw it accross time I need to periodic ping program which can say host is up/down and last ping latency was xxx ms.

Currently there is only online state checking by /tools netwarch and print terse can display status: It is possible to add latency information to netwatch tool on some next routeros version maybe to beta?

Anyway second way could be make own netwatch using scripting engine if it is possible at all. But where to start. It is possible to create own script and upload it to routerboard and set scheduler to run it every second. Routerboard have ping command too which display latency but can it be used by script to get latency, I hope so. So there is need to make some global variable as storage for host list and than periodic script executed by scheduler could read it and try to ping every host in list and store their latency.

Is it possible?
Or have somebody similar solution already?

Thanks in advance.

Have you looked at Cacti?

http://www.cacti.net/

If you had an x86 router, you could even try running the Xen package and then you could run Cacti aside the router.

use The Dude! =)

Even there are some other projects which do something similar can it be done directly in routerboard? I have simple fetching PHP script already to get online state and I need simply add latency information to it. I have made my custom administration system using PHP and MySQL and I want to get latency info to my database.

Dude don't run right on linux with wine and I dont want to have another windows based virtual machine.
I tried cacti recently but it is too complex and in some ways too limited solution for my needs.