Answers inline...
On 12-01-30 06:14 PM, Grupo IPv6 wrote:
Hi all,
I'm using Smokeping for my final project and I have some doubs that
maybe you can answer:
- - Why Smokeping needs to be connected to internet even when
I have only one Target to a host in my LAN ?
It shouldn't, unless your system is set up to use external DNS
resolvers, external mail servers for alerts, etc. With your system
disconnected from the Internet, try pinging/resolving/etc every host
name in your config files. I bet there's something in there that won't
work.
- - What is exactly the Standard deviation calculated at the
bottom right of the graphs? Is it related to the Jitter? Or is there
another way to know the jitter?
Standard Deviation is the std.dev. of the collected RTT samples.
Obviously this is related to jitter in terms of describing "how much
from the mean do the samples go". However, "jitter" is an imprecise
and undefined term (there are several slightly different ways of
defining and measuring jitter, so you'd have to pick a definition
first), so what it means in relation to your specific project is
unanswerable.
- - Why sometimes when I add a new host, for the first minute
I get a list of errors saying that the RDD file doesn't exist? This
happens commonly? Is there any way to solve this problem?
Smokeping doesn't poll every host every single second. Polling goes
into a queue, and is executed on a schedule defined internally by
Smokeping based on your "step" and "pings" settings. Until the host's
turn comes up in the queue and its polling is complete, the RRD files
aren't created. This is normal. Smokeping isn't, and is not intended
to be, a real-time, low-level monitoring solution. It's intended to
give you a sample-based/delayed view of what's been going on historically.
Many thanks,
Gabriel
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