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<DIV dir=ltr align=left><SPAN class=896430023-25112007><FONT face=Arial
color=#0000ff size=2>Why don't you try a tcpdump or snoop against a specific
host and see what is going on? I think you are being misled by these
measurements.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=896430023-25112007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=896430023-25112007><FONT face=Arial
color=#0000ff size=2>If I remember the code, the Hobbit pinger tries once every
minute. It also will retry a few times if there is a failure. If it
decides to put "conn" into a red state, it then starts polling every minute
(instead of five minutes) for 30 minutes. I think this was done to shorten
the down times for ping tests. After 30 minutes, the pinger reverts to its
normal cycle.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=896430023-25112007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=896430023-25112007><FONT face=Arial
color=#0000ff size=2>GLH</FONT></SPAN></DIV><BR>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Josh Luthman
[mailto:josh@imaginenetworksllc.com] <BR><B>Sent:</B> Thursday, November 22,
2007 6:18 PM<BR><B>To:</B> hobbit@hswn.dk<BR><B>Subject:</B> Re: RE: Re:
[hobbit] Hobbit CONN questions<BR></FONT><BR></DIV>
<DIV></DIV>Two hints:<BR><BR>1) When a host goes red, it always goes green
after 28-32 seconds or 43-46 seconds.<BR>2) When a host is red divide the
number of seconds it has been unchanged by the amount of polls. You'll
never get a a remainder greater then a minute. <BR><BR>
<DIV><SPAN class=gmail_quote>On 11/22/07, <B class=gmail_sendername>Hubbard,
Greg L</B> <<A
href="mailto:greg.hubbard@eds.com">greg.hubbard@eds.com</A>> wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV>
<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2>"Hobbit
polls every 30 - 45 seconds" -- really? How did you measure
this?</FONT></SPAN></DIV><BR>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV lang=en-us dir=ltr align=left>
<HR>
<FONT face=Tahoma size=2><SPAN class=q><B>From:</B> Josh Luthman
[mailto:<A onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:josh@imaginenetworksllc.com"
target=_blank>josh@imaginenetworksllc.com</A>] <BR></SPAN><B>Sent:</B>
Thursday, November 22, 2007 6:03 PM</FONT>
<DIV><SPAN class=e id=q_11669da1123aef2c_3><FONT face=Tahoma
size=2><BR><B>To:</B> <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:hobbit@hswn.dk" target=_blank>hobbit@hswn.dk
</A><BR><B>Subject:</B> Re: RE: Re: [hobbit] Hobbit CONN
questions<BR></FONT></SPAN></DIV><BR></DIV>
<DIV><SPAN class=e id=q_11669da1123aef2c_5>
<DIV></DIV>ARP can't be the problem - ARP will cache the result for 2
minutes and clear it if unused. If the result is used and is valid
again within the 2 minutes, it is cached for 10 minutes. Hobbit
polls every 30-45 seconds so ARP is not a problem. <BR><BR>Having switch
from using hobbitping to fping I think the graphs are going to look far
superior now. Things on the same switch are no longer 30ms but 1ms
=)<BR><BR>I now understand why there are warnings not to use hobbitping,
but I don't understand how the command line is getting such normal results
while the graphs are getting such high results. Does anyone know why
this is? <BR><BR>Josh<BR><BR>
<DIV><SPAN class=gmail_quote>On 11/22/07, <B
class=gmail_sendername>Hubbard, Greg L</B> <<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:greg.hubbard@eds.com"
target=_blank>greg.hubbard@eds.com</A>> wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV>
<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff
size=2>Don't forget the ARP protocol -- if a destination is not in the
local system's ARP cache, the lower layer code in the IP stack discards
the first packet and generates an ARP broadcast. The assumption (I
guess) is that the discarded packet will be retransmitted. You
might look for the "knobs" on fping to control timeouts and retry
counts.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff
size=2>GLH</FONT></SPAN></DIV><BR>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV lang=en-us dir=ltr align=left>
<HR>
<FONT face=Tahoma size=2><B>From:</B> Josh Luthman [mailto:<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:josh@imaginenetworksllc.com"
target=_blank>josh@imaginenetworksllc.com</A>] <BR><B>Sent:</B>
Wednesday, November 21, 2007 1:13 AM<BR><B>To:</B> <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:hobbit@hswn.dk"
target=_blank>hobbit@hswn.dk</A><BR><B>Subject:</B> Re: RE: Re:
[hobbit] Hobbit CONN questions<BR></FONT><BR></DIV>
<DIV><SPAN>
<DIV></DIV>Concerning fping options, I have some RRD graphs that show
enormous pings to some of our customer's (upwards of 800ms) because as
the radio doesn't pass any traffic it sits there and when someone
first looks for it, it acts kind of dumb. <BR><BR>What delegates how
often the FPING command is issued? I'm not looking for the
arguments for fping itself, but rather how hobbitd kicks fping into
gear.<BR><BR>I would like to increase the rate of the pings and see if
that helps. I'm running a continuous ping over night to see if
that changes the graph or if it really does spike to that outrageous
height. <BR><BR>Josh<BR><BR>
<DIV><SPAN class=gmail_quote>On 11/9/07, <B class=gmail_sendername><A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:johan.boye@latecoere.fr"
target=_blank>johan.boye@latecoere.fr</A></B> < <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:johan.boye@latecoere.fr"
target=_blank>johan.boye@latecoere.fr </A>> wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">>
-----Message d'origine-----<BR>> De : Henrik Stoerner [mailto: <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:henrik@hswn.dk"
target=_blank>henrik@hswn.dk</A>]<BR>> Envoyé : vendredi 9
novembre 2007 08:23<BR>> À : <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:hobbit@hswn.dk"
target=_blank>hobbit@hswn.dk</A><BR>> Objet : Re: RE: Re:
[hobbit] Hobbit CONN questions <BR>><BR>> On Fri, Nov 09, 2007
at 08:14:32AM +0100,<BR>> <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:johan.boye@latecoere.fr"
target=_blank>johan.boye@latecoere.fr</A> wrote:<BR>> > I'm
just wondering what triggers in the Hobbit code is used<BR>> to
make a RED ping status :<BR>> > - after just one
no echo-reply each 5min ?<BR>> > - after a couple
of no echo-reply ? How much ?<BR>> > - What is the
timeout used to declare the host unreachable ? <BR>><BR>> It
goes red when the ping utility that is used (fping or
hobbitping)<BR>> says that the host did not respond. How many
pings are sent<BR>> and what the<BR>> timeouts are is decided
by the ping tool; see their man-pages for <BR>> details. You can
tune this through commandline options for the ping<BR>> tool,
these go into the FPINGCMD setting in
hobbitserver.cfg<BR>><BR>><BR>> Henrik<BR><BR>Got it,
options must be put in the hobbitserver.cfg . Thanks for the
info!<BR><BR>"Les informations contenues dans ce message
électronique peuvent être de nature confidentielles et soumises à
une obligation de secret. Elles sont destinées à l'usage exclusif du
réel destinataire. Si vous n'êtes pas le réel destinataire, ou si
vous recevez ce message par erreur, merci de le détruire
immédiatement et de le notifier à son émetteur." <BR><BR>"The
information contained in this e-mail may be privileged and
confidential. It is intended for the exclusive use of the designated
recipients named above. If you are not the intended recipient or if
you receive this e-mail in error, please delete it and immediately
notify the sender." <BR><BR><BR>To unsubscribe from the hobbit list,
send an e-mail to<BR><A
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target=_blank>hobbit-unsubscribe@hswn.dk</A><BR><BR><BR></BLOCKQUOTE></DIV><BR><BR
clear=all><BR>-- <BR>Josh Luthman<BR>Office: 937-552-2340<BR>Direct:
937-552-2343<BR>1100 Wayne St<BR>Suite 1337<BR>Troy, OH
45373<BR><BR>Those who don't understand UNIX are condemned to reinvent
it, poorly.<BR>--- Henry Spencer
</SPAN></DIV></BLOCKQUOTE></DIV></BLOCKQUOTE></DIV><BR><BR
clear=all><BR>-- <BR>Josh Luthman<BR>Office: 937-552-2340<BR>Direct:
937-552-2343<BR>1100 Wayne St<BR>Suite 1337<BR>Troy, OH 45373<BR><BR>Those
who don't understand UNIX are condemned to reinvent it, poorly. <BR>---
Henry Spencer </SPAN></DIV></BLOCKQUOTE></DIV></BLOCKQUOTE></DIV><BR><BR
clear=all><BR>-- <BR>Josh Luthman<BR>Office: 937-552-2340<BR>Direct:
937-552-2343<BR>1100 Wayne St<BR>Suite 1337<BR>Troy, OH 45373<BR><BR>Those who
don't understand UNIX are condemned to reinvent it, poorly. <BR>--- Henry
Spencer </BLOCKQUOTE></BODY></HTML>