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