Alchemy Network Monitor PRO 9.7
Alchemy Network Monitor monitors your network servers and business-critical applications availability and performance and immediately alerts you if a server gets out of order. Alchemy Network Monitor can also perform certain actions (e.g. launch an external application or execute an SQL query) when a server stops responding to the programs requests and maintain a detailed server monitoring log.

Alchemy Network Monitor 9.7
Alchemy Network Monitor monitors your network servers and business-critical applications availability and performance and immediately alerts you if a server gets out of order. Alchemy Network Monitor can also perform certain actions (e.g. launch an external application or execute an SQL query) when a server stops responding to the programs requests and maintain a detailed server monitoring log.

Berkeley Packet Monitor 1.5
Berkeley Packet Monitor is a Mac OS X network traffic monitoring and diagnostic utility.

Engineers Toolset 9.1
With Engineer’s Toolset’s extensive network management capabilities, you’ll look like a super hero, without having to develop any special powers. Here’s a sample of Engineer’s Toolset’s save-the-day features:•Monitors and alerts on availability, bandwidth utilization and health of network devices•Provides robust network diagnostics for troubleshooting and quickly resolving complex issues •Offers an array of network discovery tools

ActiveXperts Network Monitor 7.0
ActiveXperts Network Monitor monitors servers, workstations and IP devices. Monitors Windows, UNIX, Linux and Novell. Monitors web servers, mail servers, file servers, databases, dns, disks, files, processes, raid config's, snmp, exchange, temperature and more. Custom check routines through VBScript and RSH. Alerts through SMS, Pager, E-mail, SNMP Trap and Network popup. Reports based on XML and XSL. Pure web interface, no java required.

PingPlotter Pro 3.30.0p
PingPlotter Pro is a network monitoring and troubleshooting tool. It runs in the background collecting data, and then allows network professionals fast and easy access to network routing and performance information. Remote tracing, a native web interface and highly configurable alerts are just some of Pro's features. Additional VoIP targeted capabilities such as Jitter, MOS, packet loss and latency make it a must have tool in any admin toolbox.

ServerAssist 4.4.1
ServerAssist provides deep monitoring of all your Windows and Linux servers, covering key indicators, event logs, performance items and services. ServerAssist identifies performance and availability problems, provides diagnostic information, and allows comprehensive service level and performance reporting. From one intuitive console, ServerAssist provides a complete solution for centrally managing the health and availability of all your servers.

FREE PacketTrap pt360 ToolSuite 2.2.5
pt360 Tool Suite (PacketTrap: http://www.PacketTrap.com) provides network monitoring and diagnostic tools from a single intuitive interface. Key features are device discovery and inventory, Cisco Configurator, Switch Port Mapper, NetFlow Listener, TFTP server, SNMP, WMI, Port Scan, DNS Audit, Trace Route, Syslog Server, application monitoring, Ping and supports open source tools (i.e. Nagios, MRTG, Cacti), SaaS (Salesforce.com), virtual servers

PacketTrap SNMP Scan 2.2.5
PacketTrap (http://www.PacketTrap.com) SNMP Scan is a utility that discovers network nodes that support SNMP. The utility also displays basic diagnostic information about each node it discovers. Nodes which respond to SNMP requests can be stored and sent to other tools. SNMP Scan is part of the pt360 Tool Suite - network monitoring and diagnostic tools in a single interface.