We recently had some of our stratum ntp servers replaced, and they didn't come
up quite right, but were still answering ntp, so they went green on their map.
we're using the built in probe for ntp, which I noticed had the stratum value
was underlined in the Status Window, and figured I might be able to set a
compare for that. I didn't see one in the Probe setting box, so I thought "no
big deal, I'll just grab the probe, make a copy and have a custom ntp probe."
When I pulled the probe down, there no section that shows the heading "Network
Time Protocol Status" that shows up in the status window for me to work with,
and no variable retrieving the stratum information.
So I tried clicking on the "2" in stratum 2, since it was underlined (and that
means can be graphed in my experience up until today) and got this error:
Unable to create new chart.
Data set ID 'v13ed#NtpS' is invalid.
but "v13ed@NtpS" doesn't show up anywhere in the probe
So my first question is what am I missing that the probe can display this
detail without a section that handles that?
my second question is whether or not someone else has already done this, since
it's apparently not as simple as it looked.
Ideally I could have some kind of probe that queried our three stratum 2
servers, and went into alarm state if one of their clocks was way off. or at
least let me alarm on the value being printed for "Stratum:"
Here's all the probe file had in it:
<!--
NTP (com.dartware.ntp)
Copyright © 2000 Dartware, LLC. All rights reserved.
-->
<header>
type = "built-in"
package = "com.dartware"
probe_name = "ntp"
human_name = "Network Time"
version = "1.5"
address_type = "IP"
port_number = "123"
old_protocol = "16" # Backward compat. with old
numbering scheme.
old_script = "0"
display_name = "Servers-Standard/Network Time"
</header>
<description>
\GB\Network Time Protocol - Version 2 (NTP)\P\
The protocol used to synchronize time between computers, defined in
\u2=http://www.ietf.org/rfc/rfc1119.txt\RFC 1119\p0\.
This probe sends a client-mode request to the NTP server asking for the current
time. By default, NTP requests are sent to UDP port 123.
</description>
<parameters>
# No Parameters
</parameters>
--
-debbie
Debbie Fligor, n9dn Lead Network Engineer, CITES, Univ. of Il
email: [email protected] <http://www.uiuc.edu/ph/www/fligor>
"My turn." -River Tam
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