It depends. You need to see when cricket runs (sudo -u navcron crontab -l | grep cric). The default is each 5 minutes, but if your device is very slow to respond snmp requests, this time must be increased.
By default cricket's monitor all interfaces of the the device. So, if the device is slow, the cricket will be slow too.
NAV uses a simple tool called mcc.py (make cricket config) that is called by navcron's crontab (sudo -u navcron crontab -l | grep mcc) to make the config files used by cricket. I've experienced similar problems with cricket...
Please, read the attached mail.
2013/7/25 Orzakiewicz Cedric cedric.orzakiewicz@barilla.com
Hi,****
After waiting a couple of hours, the graph appeared.****
Do you know what process does that and how long it takes for it ?****
Thank you.****
Cédric.****
*From:* Bruno Galindro da Costa [mailto:bruno.galindro@gmail.com] *Sent:* giovedì 25 luglio 2013 02:02 *To:* Orzakiewicz Cedric *Cc:* Morten Brekkevold; nav-users@uninett.no *Subject:* Re: Cricket Graph missing****
What is your nav version? It's installed by apt-get?
Check the directory /etc/nav/cricket-config/ports/ if there is a file named with the IP address of the switch. Paste the contents here plz.****
2013/7/19 Orzakiewicz Cedric cedric.orzakiewicz@barilla.com****
Hi,****
I have added a new device (switch) in NAV.****
Unfortunately, I don’t see any graph corresponding to this device in Cricket module (while I still see the different graphs for other devices that are also switches).****
What can I do to get the graphs of this new device ?****
I had a look everywhere in NAV, checked the documentation, but I did not see anything about that.****
Thank you..****
Cédric.****
-- Att. Bruno Galindro da Costa****