advanced ping & packetloss

[audun]

Hi. I have sucessfully set up advanced ping on several hosts. But I am not satisfyed. If one host has 100% packetloss there is no graph ! The graph disconnects. If there is some % packetloss like 40% then it is graphed, and the numbers are indicating correct. But if there is 100% packetloss: no graph and the numbers indicating packetloss is showing 0%. I have run the ss_fping manualy and it shows correct 100% packetloss ig a host is down. So I think the ping is ok. It is the graph who isn't graphing. Is this possible. It should show a red line at packetloss. The hosts are set up without snmp. Just ping graphing. It indicates down in monitor and thold. Look at the atached graph.

[gandalf]

This may be connected to the Downed Host Detection. If the host is detected as down, no more polling is done. So the value of the according rrd file will be NaN. The Graph Template decides, how to graph this. In earlier versions of the Advanced Ping Template this was shown as a vertical red line for each NaN. Later, this was changes on purpose to show nothing. Of course, you may change this for your local installation.
Reinhard

[TheWitness]

The Advanced ping template is a temporary solution till 0.9, where packet loss will be more automatic. If you want to see 100% loss, then you need to associate the graph with a host that has no snmp community string. Then you will see it. In the next release, the Advanced Ping will utilize the Cacti system default ping method, whichever it is.

TheWitness

[audun]

Ok. I'm not an expert in editing graph templates. How should I implement the graphing of NaN. I want to have an erea in the graph with the color corresponding to the packetloss. That would be red at 100% packetloss. Could someone give me an adwice, ore better, edit the graph template for me ? And post it here. Thanks.

[gsaray101]

using cacti version 0.8.7a and noticed a problem. If I add a device using ping, it still relies on snmp. If the snmp agent on the remote server is down, this advanced ping script wont work. is this problem addressed?