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It's optimized for polling tens of thousands of counters on hundreds or thousands of hosts in a parallell manner. This is known to work (although performance might be limited by less than optimal SNMP agent implementations in random network gear). Create a Session. The Session constructor, like most of the other functions, take an options object. The options passed to the Session will be the defaults for any subsequent function calls on that session, but can be overridden as needed. Useful parameters here are host, port and family.
LibreNMS is an autodiscovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems including Cisco, Linux, FreeBSD, Juniper, Brocade, Foundry, HP and many more.
In kekeo, I use an external commercial library to deal with Kerberos ASN.1 structures: OSS ASN.1/C (http://www.oss.com/asn1/products/asn1-c/asn1-c.html) It was the only code generator/library that I've found to work easily with Microsoft C project. You can't build kekeo out-of-the-box, you'have to generate C files and link with OSS libraries.
PolyMon is a .NET/SQL Server based system to monitor, analyze and alert on a variety of network resources including PowerShell, PerfMon, WMI, SNMP, TCP, URL, etc. Integrates with PowerShell for custom monitors and Actions. Also easily extensible through a plug-in architecture.
Pandora FMS is a performance and availability monitoring system, ready for big environments. It uses agents for local monitoring and can do several kinds of remote network monitoring. It watches your systems and applications, and allows you to know the status of any element of those systems.
IvmaiAsn ASN1/ECN/XDR Tools. A collection of the ASN.1/ECN parser, XDR-to-ASN.1 converter and pretty-printer scripts for ASN.1/ECN specifications. Contains also a formal definition of the ASN.1 built-in types, ECN encoding classes and XDR encodings.
SNMP::Info - Provides a Perl-5 object oriented interface to information obtained through SNMP. Specialty sub-classes exist for a number of network devices and common MIBs such as SNMP::Info::Layer2::Catalyst and SNMP::Info::CDP.
Net-SNMP provides tools and libraries relating to the Simple Network Management Protocol including: An extensible agent, an SNMP library, tools to request or set information from SNMP agents, tools to generate and handle SNMP traps, etc.
Splash is the combination of an Active Network (SNAP) and network management extensions based on SNMP. It can process network management requests at the same speed as SNMP, while it also allows for more flexible solutions not possible with SNMP.
Scotty TNG is a ping/snmp based realtime network monitoring software. This software implements a client/server approach to monitor a huge number of hosts with ICMP echo requests and SNMP queries. The client presents all gathered informations via a GUI.
ntopng is a web-based network traffic monitoring application released under GPLv3. It is the new incarnation of the original ntop written in 1998, and now revamped in terms of performance, usability, and features. While you can read more about ntopng on the ntop web site (http://www.ntop.org), we suggest you to start reading the doc/README.md file for learning how to compile and use ntopng.
Zenoss Core is an open source IT monitoring product that delivers the functionality to effectively manage the configuration, health, performance of networks, servers and applications through a single, integrated software package.
yapsnmp-ng is a Python SNMP module built on top of the net-snmp (formerly known as ucd-snmp) library. It offers SNMP version 1 and 2c and v3 as well as full MIB parsing. (Compatible with Python up to 2.6) It add SNMPv3 support and fixes to the YapSNMP
NetMRG is a package for network monitoring, reporting, and graphing. It uses RRDTOOL for graphing data, PHP for web-based configuration, and a C program for data gathering, with native SNMP support and the ability to accept data from custom scripts.
Zabbix is an enterprise-class open source distributed monitoring solution. It is highly scaleable, capable of monitoring more than 100,000 devices and servers. A Zabbix agent can also be installed on UNIX and Windows hosts to monitor statistics such as CPU load, network utilization, disk space, etc. It also supports agentless monitoring via SNMP, TCP and ICMP.