Random Missing Segments of Traffic In Cacti Graphs

[tspec]

I've been running cacti for a few days now and just have it monitoring a couple of routers for the moment until I'm satisfied it's working well enough to make a full switchover from MRTG. For some reason there seems to be random segments missing on the graphs under Cacti but on MRTG probing same for the same router, it's all working fine. Is this a known problem in cacti? This is happening on all the graphs I've setup except the localhost one running by default.

Below is a comparison between Cacti and MRTG probing the same router:

Cacti


MRTG


Any help or information regarding this would be greatly appreciated. I had a quick look through the forums but couldn't see anything relating to it.


thanks....

[dinfiesta]

Maybe it´s the rrdtool version?

All host have Availability of 100% (just in case)

Anyone ?

Thanks!

PD: My first post...cacti is great!

[rony]

FYI, check the timeout on the hosts in question. Maybe 500ms isn't enough, an indication is not having at lease 99% availability.

[tspec]

FYI, check the timeout on the hosts in question. Maybe 500ms isn't enough, an indication is not having at lease 99% availability.

Thats a very good point. Thanks, I'll give it a shot.