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
mrtg.. Ashe Canvar <acanvar@gmail.com> 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 --------------------------------- Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1¢/min.
If you can't say something useful.. Assuming you're looking for basic latency and availability monitoring, with alerts: http://www.smokeping.org - billn On Tue, 28 Mar 2006, Jon Lyons wrote:
mrtg..
Ashe Canvar <acanvar@gmail.com> 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
--------------------------------- Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1¢/min.
At 06:23 PM 3/28/2006, Jon Lyons wrote:
mrtg..
MRTG is not a monitoring system. It's a data collection system. Toby should have never put in the alarm configuration. But he did. Anyhow. There's some tools listed in the NANOG faq, but two very easy ones come to mind. 1. NAGIOS 2. NOCOL (I know about snips. I don't care). -M< -- Martin Hannigan (c) 617-388-2663 Renesys Corporation (w) 617-395-8574 Member of Technical Staff Network Operations hannigan@renesys.com
On 3/28/06, Ashe Canvar <acanvar@gmail.com> wrote:
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.
autostatus, mrtg, cricket, hobbitmon, cacti, nagios, big brother,are all good options, find these and more on Freshmeat: http://freshmeat.net/browse/152/
The display format should be noc-friendly. A basic grid with green/red status indicators at the least. Geographical maps a plus.
For noc-friendly latency reporting, look at SmokePing. For deeper tests of HTTP page loads and file transfers, HobbitMon could be what you're looking for. I'm not aware of any freeware products which draw nice geographic maps, we have OpenView for that. A few years ago I started work towards generating dynamic network status graphics with Graphviz, but management decided it would be easier and faster to buy OpenView licenses.
Do most of you use a home grown tool for this monitoring and alerting ?
I've found that I always end up writing some custom code, but you could do worse than to build on top of one of the open-source monitoring tools. For example, I use a highly customized version of AutoStatus for up/down alerting, primarily because I like how it handles dependencies. Kevin
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
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
1. Cricket with Acktomic tools to monitor Cisco SLA/SAA/RTR values 2. ospf snmp traps to snmptrapd? I think somewhere in the archives someone did some perl scripting to watch ospf stuff. OSPF has some mibs that can be used for data gathering. Ed Ravin had an add-on for http://linux.kernel.org/software/mon/. Check the archives around 2006/02/06. John Kristoff has an integrity tool at http://ntgrd.depaul.edu/software/ (may not be what you look for). Check the archives around 2006/01/18. If nothing else, they may show you how to get at the OSPF stuff you want. 3. is netmap what you are describing: http://www.it.teithe.gr/~v13/netmap/img/netmap-1.3.0-1.png? Maybe use Netmap to plot RTR values from 1) rather than the standard bandwidth values -----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
-- Scanned for viruses and dangerous content at http://www.oneunified.net and is believed to be clean. -- Scanned for viruses and dangerous content at http://www.oneunified.net and is believed to be clean.
On Tue, 28 Mar 2006 16:07:27 -0800 "Ashe Canvar" <acanvar@gmail.com> wrote:
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
Oh! Then take a look at the FCP product from Internap. http://www.internap.com/solutions/routecontrol/page1980.html The price alone will convince your PHB to let you build a box. -- Bill Thompson BillT@Mahagonny.com
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
-- Scanned for viruses and dangerous content at http://www.oneunified.net and is believed to be clean. -- Scanned for viruses and dangerous content at http://www.oneunified.net and is believed to be clean.
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
-- Scanned for viruses and dangerous content at http://www.oneunified.net and is believed to be clean.
-- Scanned for viruses and dangerous content at http://www.oneunified.net and is believed to be clean.
On Wed, 29 Mar 2006, Alexei Roudnev wrote:
I use snmpstatd - snmpstat.sf.net .
Oooh, looks nice!
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Ashe Canvar
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)
Ashe, I've done this using "mon" (http://www.kernel.org/software/mon/). It comes with two traceroute monitors which remember the past paths and alert when that path changes. In fact, one of the monitors can even detect load-balanced alternate paths, e.g. if there are multiple possible intermediate paths during normal operation. You'll want to look at the latest 1.1 release from CVS: http://www.kernel.org/software/mon/development.html
3. actively transfer a fixed file i.e. draw a datarate grid between every datacenter and every other datacenter
In fact, I belive people have done precisely this with mon before. Try asking on the mailing list, I'm quite sure someone will respond.
I am in a buy vs. build debate with my boss ;)
Build! I think mon gets you at least 90% to where you want to go.
On Wed, 29 Mar 2006, Alexei Roudnev wrote:
I use snmpstatd - snmpstat.sf.net .
Oooh, looks nice!
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Ashe Canvar
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)
Ashe,
I've done this using "mon" (http://www.kernel.org/software/mon/). It comes with two traceroute monitors which remember the past paths and alert when that
Snmpstat was esigned for ISP in Russia, and is used actively by a few ISP. I modified it for enterprise here in USA and use for entyerprise monitoring as well. It if _fixed parameter system_ so it imonitors just routeres/switches/firewalls for a limited set of parameters (interfaes and ports) but do it very well and have very useful compactt view, tickets, sopund alerts for opertators, etc. It uses simple config file which can be easily generated or can be modified by the web. I use it (Poll.conf file) as a primary documentation (saving it into CVS on each change). We are using snmpstat in combination with cricket or mtg (which monitors parameters not covered by snmpstat), and combine it with CCR - cisco configuration repository (track cisco config changes), ProBIND2 (control all DNS'es around), acid (snort viewer), inventory database (shows hardware in the racks), alert aliasing system (just set of aliases + archive for alerts, warnings and so on), osiris (control server's changes), and few other tools (you can see short description on the snmpstat page). It is not (yes; I have it in TODO but did not had demand so it was not completed) packed as 'rpm' or well auto-configured (but the only problem we hais usually _fix small inconsistancy in include files of embeddded snmp package), but is very fast (we monitor 1,000 - 2,000 interfaces without any visible impact on our FreeBSD servers) and relatively simple. ----- Original Message ----- From: "Jim Trocki" <trockij@arctic.org> To: "Alexei Roudnev" <alex@relcom.net> Cc: "Ray Burkholder" <ray@oneunified.net>; "'Ashe Canvar'" <acanvar@gmail.com>; <nanog@nanog.org> Sent: Wednesday, March 29, 2006 5:09 AM Subject: Re: Backbone Monitoring Tools path
changes. In fact, one of the monitors can even detect load-balanced alternate paths, e.g. if there are multiple possible intermediate paths during normal operation.
You'll want to look at the latest 1.1 release from CVS:
http://www.kernel.org/software/mon/development.html
3. actively transfer a fixed file i.e. draw a datarate grid between every datacenter and every other datacenter
In fact, I belive people have done precisely this with mon before. Try asking on the mailing list, I'm quite sure someone will respond.
I am in a buy vs. build debate with my boss ;)
Build! I think mon gets you at least 90% to where you want to go.
Do you need generate alerts? Or provide trending information to measure performance? I said mrtg or rrd because you can create graphs based on the ping repsonse time & packet loss between the datacenters, you could also create a graph showing how long it takes to transfere a file to remote site. Basic mrtg and a few simple scripts and a webserver. If you need something that alerts you with e-mail/pages, then nagios, but you'll spend a lot of time in setup and trying to export the nagios checks to into a someting that makes pretty graphs if you need that. I thought the Internap FCP is only for bgp setups, also it doesn't provide the informatoin you're gonna want, at least not that I can tell yet.. :) Ashe Canvar <acanvar@gmail.com> wrote: 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 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
--------------------------------- Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1¢/min.
D'oh!! At first I thought he was asking for backHOE monitoring tools. Around here we simply bury a short length of fiber and wait a few minutes until the backhoes sniff it out and start digging.... sorta like the way they use pigs to search for truffles. David Leonard ShaysNet
On Tue, 28 Mar 2006 16:07:27 PST, Ashe Canvar said:
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)
Two words: "Asymmetric routes". Just be aware of the implications.
From all the replies I have received, I don't think anything open
Well, True. But the idea is to have a full mesh of 'n' sensors each doing 'tests' to the remaining n-1 sensors. Finding asymmetric routes should be trivial as I plan to feed it my router configs from rancid, for detecting interfaces that belong to the same router. ( Of course, this can't be extended to the Internet in genral. ) source fits the bill. Going to the mines to write my own. Good bye cruel world... On 3/29/06, Valdis.Kletnieks@vt.edu <Valdis.Kletnieks@vt.edu> wrote:
On Tue, 28 Mar 2006 16:07:27 PST, Ashe Canvar said:
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)
Two words: "Asymmetric routes". Just be aware of the implications.
Wouldn't you be better served just walking the netToMedia tables for your devices? Parsing configs sucks. Even caching the contents of a simple snmpwalk would save you some pain. Shovel 'em into a db and call it a day. - billn On Wed, 29 Mar 2006, Ashe Canvar wrote:
Well, True. But the idea is to have a full mesh of 'n' sensors each doing 'tests' to the remaining n-1 sensors. Finding asymmetric routes should be trivial as I plan to feed it my router configs from rancid, for detecting interfaces that belong to the same router. ( Of course, this can't be extended to the Internet in genral. )
From all the replies I have received, I don't think anything open source fits the bill.
Going to the mines to write my own. Good bye cruel world...
On 3/29/06, Valdis.Kletnieks@vt.edu <Valdis.Kletnieks@vt.edu> wrote:
On Tue, 28 Mar 2006 16:07:27 PST, Ashe Canvar said:
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)
Two words: "Asymmetric routes". Just be aware of the implications.
On Tue, 28 Mar 2006 15:13:23 -0800 "Ashe Canvar" <acanvar@gmail.com> 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.
Take a look at Nagios (http://www.nagios.org/) for active monitoring and Cricket (http://cricket.sourceforge.net/) which uses RRDtool to monitor throughput like MRTG, but is a little easier to configure. Good Luck, -- Bill Thompson BillT@Mahagonny.com
participants (12)
-
Alexei Roudnev -
Ashe Canvar -
Bill Nash -
Bill Thompson -
Jim Trocki -
Jon Lyons -
Josh Cheney -
Kevin -
M. David Leonard -
Martin Hannigan -
Ray Burkholder -
Valdis.Kletnieks＠vt.edu