February 2018
Beginner
290 pages
7h 28m
English
Content preview from Hybrid Cloud for Architects
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SNMP monitoring
Simple Network Management Protocol (SNMP) is a wide-spread protocol used to retrieve the metrics in a client-server setting.
The nodes that are being monitored generally have an SNMP agent installed on them. They generally listen to UDP port 161. The SNMP server can then make requests to them for certain information.
The information that is being asked for is encoded in a series of numbers called the object identifier (OID). The OIDs are organized in a tree fashion for extensibility and ease of use. Since the OID is a tree, it is also traversed like one, which means you can request for all the entries under a certain branch, go to the next entry, go to previous entry, and so on. In order to see the OID tree, visit: http://www.oid-info.com/cgi-bin/display?tree=0 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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