Re: SNMP - monitoring large number of devices

[Tom Sands <tsands () rackspace com>]

We have used ZenOss for a number of years at this scale (40k+ devices, at intervals of 1-5 minutes). It is possible to 
do if you have the hardware and storage performance to throw at it. We used OpenNMS before that and had to change due 
to scale. During that time we evaluated a number of the big name and big dollar solutions and none of them seemed to 
scale any better without significantly more hardware costs.  
That's not to say ZenOss is perfect, we have plenty of headaches too. 

Sent from my iPhone

> On Sep 29, 2015, at 10:40 PM, Joel Whitcomb <Joel.Whitcomb () citrix com> wrote:
>
> So we have used www.zenoss.org for many years. Individual collectors are easily handling snmp poll rates of 1.5k oids 
> per second(450k per 5m). As zenoss core is open source Its probably worth a look for you.
>
> -Joel
>
> -----Original Message-----
> From: NANOG [mailto:nanog-bounces+joel.whitcomb=citrix.com () nanog org] On Behalf Of Pavel Dimow
> Sent: Tuesday, September 29, 2015 1:20 PM
> To: NANOG <nanog () nanog org>
> Subject: SNMP - monitoring large number of devices
>
> Hi all,
>
> recently I have been tasked with a NMS project. The idea is to pool about
> 20 OID's from 50k cable modems in less then 5 minutes (yes, I know it's a one million OID's). Before you say check 
> out some very professional and expensive solutions I would like to know are there any alternatives like open source 
> "snmp framework"? To be more descriptive many of you knows how big is the mess with snmp on cable modem. You always 
> first perform snmp walk in order to discover interfaces and then read the values for those interfaces. As cable modem 
> can bundle more DS channels, one time you can have one and other time you can have N+1 DS channels = interfaces. All 
> in all I don't believe that there is something perfect out there when it comes to tracking huge number of cable 
> modems so I would like to know is there any "snmp framework" that can be exteded and how did you (or would you) solve 
> this problem.
>
> Thank you.