SNMP Question

Previously I asked a question here on Managed Switches.
One of the biggest things I was offered that Managed Switches could was to use SNMP.

I have looked all over the Web looking for examples on how and when to use SNMP and for SNMP training.

Why is it that most information, even the latest published book for SNMP is a few years old. It appears as if SNMP is not used that much. And a lot of links do not work anymore.
The last book published was in 2002.

I have a bit of information on it, but am looking for some real world application on how to use it, when to use it, and even why to use it.

And now after investigating it, if I should be using it. It defiantly looks like it is not being used much, at least by searching on SNMP.

Thanks for your input.
Linux_HawkAsked:
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grbladesCommented:
SNMP has been around for a long time and hasn't really changed much recently so I guess there is no reason to update books.

Probably the most common use for SNMP is monitoring the packet and byte counters on interfaces in order to produce graphs of bandwidth being used. For an example application see http://mrtg.hdl.com/mrtg.html
improveyourpcCommented:
Linux_Hawk,
SNMP is widely used, Simple Network Management Protocol (SNMP) is a widely used protocol for monitoring the health and welfare of network equipment (eg. routers), computer equipment and even devices like UPSs. The Simple Network Management Protocol (SNMP) is an application-layer protocol designed to facilitate the exchange of management information between network devices. By using SNMP-transported data (such as packets per second and network error rates), network administrators can more easily manage network performance, find and solve network problems, and plan for network growth.

here is a good link from Cisco explaining SNMP:

http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/snmp.htm

Also:

http://www.cisco.com/warp/public/535/3.html

http://www2.rad.com/networks/1995/snmp/snmp.htm

I think the reason you are only finding books published up until 2002, is that the latest version (SNMP Version3) was approved that year. The SNMPv3 specifications were approved by the Internet Engineering Steering Group (IESG) as full Internet Standard in March 2002. The SNMPv3 specifications were previously approved by the IESG as Draft Standard in March 1999. The SNMPv3 specifications primarily add security and remote configuration capabilities to SNMP.

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improveyourpcCommented:
Linux_Hawk,
You also asked "am looking for some real world application on how to use it, when to use it, and even why to use it."

I use an SNMP application on a daily basis as I work in a Network Operations Center. We monitor networks on a 24x7 schedule.

Examples:
http://www.google.com/search?hl=en&q=Network+Operations+Center

The software we use is called Netcool/Omnibus by Micromuse:

http://www.micromuse.com/index.html


mikebernhardtCommented:
>SNMP has been around for a long time and hasn't really changed much recently so I guess there is no reason to update books.

I think grblades is correct here. A book from 2002 would be fine. SNMP is used A LOT in the real world.
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