nanog mailing list archives

Re: Backbone Monitoring Tools


From: "Alexei Roudnev" <alex () relcom net>
Date: Wed, 29 Mar 2006 01:30:16 -0800


I use snmpstatd - snmpstat.sf.net .

----- Original Message ----- 
From: "Ray Burkholder" <ray () oneunified net>
To: "'Ashe Canvar'" <acanvar () gmail com>; <nanog () nanog org>
Sent: Tuesday, March 28, 2006 4:47 PM
Subject: RE: Backbone Monitoring Tools



A few more comments.

I found a link to snmp management for ospf in an archive message:

http://www.cisco.com/en/US/tech/tk869/tk769/technologies_white_paper09186a00
801177ff.shtml.  That may yield you the info you need for monitoring links
and/or routes.

From my other message, if you collect 1) and 3) with cricket, you can
extract RTR and bandwidth data with perl from cricket's config file.  I
took
a bit of code reverse engineering, but I managed to get some mod_perl code
going to do such a thing, so it can be done.  If you pull out the
appropriate interface stats, you'd be able to generate your grid for 1)
and
3).

-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of
Ashe
Canvar
Sent: Tuesday, March 28, 2006 20:07
To: nanog () nanog org
Subject: Re: Backbone Monitoring Tools


Thanks for the quick responses. Perhaps I should have been more explicit.

I already use "remstats"
(http://remstats.sourceforge.net/release/index.html) for interface b/w
monitoring. I have worked with nagios and openview int he past.

I have an ospf based network. The specific monitoring problem I am trying
to
solve is  :

 1. actively test the currently active path for packet loss and transfer
     i.e. draw a latency grid between every datacenter and every other
datacenter

 2. actively detect routing changes / failover to redundant paths using
traceroutes
     i.e. alert if  SFO->CHG->NYC changes to SFO->LXE->HOU->NYC
     ( link state protocols suck as far as testing backup paths go)

3. actively transfer a fixed file
   i.e. draw a datarate grid between every datacenter and every other
datacenter


So, I am not looking for a generic graphing/alerting NMS. Does anyone use
a
specific tool that is capable of doing this ?

I am in a buy vs. build debate with my boss ;)

Regards,
Ashe.






On 3/28/06, Josh Cheney <jcheney () mfx net> wrote:

I have had a decent amount of success with Nagios. It is not trivial
to setup, but once it is up and running, it has always handled our
dependencies and such very well. Additionally, because it calls
external programs to do the checks, it is pretty simple to write a
script that measures whatever value you would like to monitor. As I
said before, it is a pain to set up initially, but after getting it
set up, I couldn't be happier with it.

Ashe Canvar wrote:
Hi All,

I want a simple backbone monitor for my 5 datacenters. My "backbone"
consists of  redundant IPSEC/GRE tunnnels.

At the very least I want to ping, traceroute and transfer a small
file every few minutes over all IPSEC links. I am sure there are
products that do this already, but I am having a hard time finding
any.

The display format should be noc-friendly. A basic grid with
green/red status indicators at the least. Geographical maps a plus.

Do most of you use a home grown tool for this monitoring and alerting
?

Regards,
Ashe

.


--
Josh Cheney
jcheney () mfx net
http://www.joshcheney.com


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