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Gambit Communications® Network Simulation

Gambit Communications® is a provider of tools for simulating servers, networking and storage devices.

Network management software

MIMIC Simulator for testing your network management software.

Network Management Apps

MIMIC Simulator for testing your network management software. SNMP Simulation.

MIMIC Web Simulator

Create a large virtual lab with Gambit Communications.

IOS Simulator

IOS based apps Using MIMIC Simulator.

Friday 26 December 2014

Employ Network Management Software for Your Business Success

Many companies these days rely on the internet technology for the success of their business. This is accomplished through the assistance of appropriate software and the appropriate updating of each on a regular basis. However, the complicated part is the installation of the networks particularly when accomplished manually.

http://www.gambitcomm.com/site/products/mimic_files/mimic2.gifProblem could begin when some affiliates of the working staff mess up the network configuration which could certainly affect the overall updates. This can bring unbalanced update system to the organization. In such circumstances, the network management software can help the company to get out of the trouble.

Network management application is such a great tool for the network change management responsibilities of each organization. It can’t be prevented that once in a while there’d be adjustments in the configuration & assignments of the network. Network management software can be a great solution to get away from probable errors.. It can assist in correctly applying the configuration without compromising its accuracy. Just think how much investment and money would be wasted away for each blunder done with configuration. Thus it’s essential that you get it right from the firstt attempt.

What’s great about network management application is that it not only assists in the task of new network configuration but in correcting issues taking place within the network as well. It helps in setting up and fix the entire network and put a stop to any type of issues that might slowdown the company’s performance.
http://www.gambitcomm.com/site/products/images/netflow-auditor.jpgNetwork management application is very easy & simple to comprehend and implement because of its user-friendly interface. This can offer you with the perfect reports that you require to be able to access suitably.

  
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Friday 19 December 2014

Monitor Server Health through SNMP

Server monitoring is extremely vital to essential IT infrastructural maintenance. An excellent monitoring system doesn’t just create alarm in reply to the important events but also offers the analytic devices to operate on the advanced scenario in IT domain. In the IT industry, some standard protocols are employed for server monitoring purposes. Generally used protocols are ICMP, SNMP, WMI, etc. By far SNMP is the most common choice and extensively employed platform for server monitoring. SNMP employs a general community string to check devices. When the string is verified, it offers useful info about the physical health of server and other devices.

SNMP - A brief introduction:

SNMP (Simple Network Management Protocol) is a standard protocol and employed to supervise servers and network devices on IP network. The services of Simple Network Management extend to other devices like printer, switches, routers, etc. This protocol has a widespread use in network management systems. SNMP comprises several standard features: an application layer protocol, a schema, a set of data objects for complete administration of the total network.

Working process of SNMP?

mimic_viewOn the managed system – which describes the system configuration – the management data is depicted in form of variables. Once represented, the management data – in their latest format are monitored and occasionally changed by the managing applications. In case of general SNMP uses, the administrative manager monitors a horde of services and hardware on that system. Each of the administration systems has an agent software. This agent takes the responsibility of sending crucial info to the manager via SNMP.

Why SNMP is the best protocol to monitor server:

SNMP is the best choice when it comes to server monitoring tool and there’re several reasons behind it. Simple Network Management Protocol sends easy-to-understand info to the network managers. Such a quality aids in proper administration of several devices with the assistance of common network administration tools. Only a single interface is adequate for the reason of device administration through SNMP. It is the most efficient and best possible device administration system that makes sure of correct communications amid the management stations and agents from several vendors. The complete network analyzer – a crucial device of server monitoring through SNMP provides timely analysis. On strength of some crucial tools, SNMP does many important tasks comprising network interface planning, RAM space checking & provision of back-end-support system.

 
 
Server monitoring through SNMP uses the different tools of network administration to get the ideal piece of info regarding the network of blockage. Since the whole monitoring system is based on performance reports from the tools, you can always anticipate SNMP to work appropriately towards server monitoring.
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Tuesday 2 December 2014

What is Network Monitoring?

The term network management and network monitoring are both often utilized in IT (Information Technology) industry. So what is network monitoring? Well, network monitoring refers to the practice of control function of a computer network employing specialized management tools. Network monitoring programs are employed to make sure accessibility and overall performance of hosts and network services. Typically, these systems are used on large-scale corporate and university IT networks.

Key aspects in network monitoring:

netflow_sim_constant1A network monitoring software is capable of spotting and reporting malfunction of devices or connections. Normally, it measures the CPU utilization of computers, the network bandwidth use of links, and other features of operation. Often it will send messages over the network to each host to make sure if it is responding to requests. When malfunctions, insufficiently slow reaction, or other unanticipated behaviour is spotted, these systems send supplementary messages named “alerts” to selected locations such as an email address, a management server or a telephone number to inform system administrators.

MIMIC NetFlow Simulator:

MIMIC NetFlow Simulator creates a lab full of devices based on Cisco® NetFlow, Juniper® J-Flow, IPFIX, and sFlow data to completely evaluate and test your Flow monitoring, management and analysis applications. Also, MIMIC Network Simulator tool allows developers to perform real world, integrated device simulations. The most common uses of MIMIC NetFlow Simulator are in development and testing, evaluation, trade shows, sales demos and training environments.

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Wednesday 26 November 2014

What Can SNMP Do To Manage Your Network ?

So you have decided to get a better grip on your network? Maybe you are looking at establishing some screening. But then you find out you require to configure this thing named SNMP, and that is when the issue start. There’re things to configure that you never have heard of: MIBs, OIDs, traps, polling, informs and versions.

In this article, you’ll get to know the basics, and observe how it can assist you make your network more dependable and simpler to manage.

What is SNMP anyway?

iccnalab-menuSimple Network Management Protocol (SNMP) is a standard method of monitoring software and hardware from about any manufacturer, from Cisco to Microsoft. SNMP needs only a couple of essential components to function: a management station & an agent.

First, the management station - It is simply an application that gathers info from your network and shows you status of each managed device. Most of the management stations will ask your network for info on a regular basis. Management stations range from very simple to extremely difficult.

Usually, simple software is feature-limited, but can be avail freely and effortless to configure. At the same time, complex software can handle your total network and give you a full control. Also, they’ll perform things such as generate reports, do inventory, and send SMS or email alerts when systems fall short.

What Simple Network Management Protocol can do?

SNMP is extremely simple, yet very effective. It has the capability to help you handle your entire network by:

• Offer read or writer capabilities – for instance, you could employ it to reconfigure IP address or set thresholds.

• Collect error accounts into a log, helpful for troubleshooting & recognizing trends.

• Collect info on how much bandwidth is being utilized

• Email an alert when your servers’ disk space is low.

• Monitor the CPU & memory use of your server, alert when thresholds are surpassed.

• Passive SNMP simulator devices can send alerts to monitoring station on fault conditions and help you test your management station.

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Monday 24 November 2014

Basic Components of SNMP and Their Functionalities

SNMP is one of the most widely accepted protocols to manage and monitor network elements. It’s an application-layer protocol by the IAB (Internet Architecture Board) in RFC1157 for exchanging administration info from network devices. In this article, we will take a good look at SNMP’s basic components & their functionalities.

Simple Network management Protocol consists of SNMP manager, Managed devices, SNMP agent, Management Information Base (MIB).


SNMP manager:
A manager is a separate unit that’s accountable to communicate with the SNMP agent on network devices. This is usually a software installed on a PC or a server to operate one or more network management systems.

Key functions of SNMP manager include:
• Queries agents
• Gets responses from agents
• Locates variables in agents
• Accept no synchronous events from agents
Managed devices:
A managed device is the part of the network that needs some type of monitoring and management, for example, switches, routers, workstations, servers, UPSs, printer, etc.
SNMP agents:
The agent is an application that is packaged inside the network element. The agent gathers the management information database from the device locally and makes it accessible to the SNMP manager, when it’s asked for. These agents could be specific or standard to a manufacturer.

Key functions of SNMP agent:
• Collects management info related to its local setting
• Stores and retrieve management info as defined in the Management Information Base (MIB)
• Acts as an alternative for some non–SNMP manageable network node
• Indicates event occurrences to the manager

Management Information Base (MIB):

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Each SNMP agent retains an information database explaining the managed device configuration. The SNMP manager employs this database to ask the agent for precise info and further interprets the info as required for the NMS (Network Management System). This commonly allocated database between the Manager and Agent is named Management Information Base or MIB.

Usually, these MIBs contain regular set of numerical and manage values characterized for hardware nodes on a network. Also, SNMP allows the expansion of these regular values with values specific to a particular agent via the utilization of private MIBs.

In brief, MIB files are the set of parameters that an SNMP Manager can request the agent. Agent assembles these data locally and stores them as described in the Management Information Base. Therefore, the SNMP manager must be attentive of these standard & private queries for every kind of agents.


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Tuesday 21 October 2014

SNMP – Overview and Basic Concepts

Simple Network Management Protocol or SNMP is an Internet Standard Protocol for managing tools on IP networks. Devices that generally support SNMP comprise of switches, routers, servers, printers, workstations and modem racks. SNMP is mostly used in network management systems to scrutinize network-connected devices for states that call for administrative consideration. SNMP is a part of the IPS (Internet Protocol Suite) as classified by the IETF (Internet Engineering Task Force). Simple Network Management Protocol provides managing data in the form of variables on the controlled systems, which explain the system configuration.

SNMP standards:

Introduced in the 80s, the original edition of SNMP, SNMPv1, lack some crucial functionality & only worked with IP or TCP networks. An enhanced version for SNMP, SNMPv2 was introduced in 1992. Even though Simple Network Management Protocol had many security issues, several networks remained on the SNMPv1whilst others implemented SNMPv2. Recently, the SNMPv3 version was introduced to address those issues with SNMPv1 & SNMPv2 and allowed managers to move to one regular SNMP standard.

Overview & basic concepts of SNMP:
mimic2
In general SNMP uses, one or more administrative computer systems, known as managers, have the responsibility of monitoring or controlling a group of devices or hosts on a computer network. All managed systems execute a software module called an agent which provides information using SNMP to the manager. SNMP agents assign management data on the controlled systems as variables. Also, the protocol allows active management responsibilities, such as revising & employing a new configuration via remote adjustment of these variables. The variables available via SNMP are prearranged in ranking. These ranking, and other meta data are included in MIBs (Management Information Bases).

An SNMP-controlled network comprises of three crucial elements:

• Managed device
• Agent software that runs on controlled devices
• NMS or Network management station application that runs on the manager

MIMIC SNMP simulator:
 

MIMIC SNMP Simulator creates a network of up to 100,000 SNMP-manageable devices. You can create any SNMP-based device with any number of public or private MIBs to run a large variety of device configurations with your SNMP management application. It lets you generate thousands of traps to simulate disaster scenarios.

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Sunday 19 October 2014

Network Monitoring – An Overview

Network monitoring is needed in a system that persistently scrutinizes a computer network for sluggish or weakening components. It informs the network administrator via SMS or email in case of outages. It’s a part of network management.

wca_2006_winner
Whilst an intrusion-detection system scrutinizes a network for dangers from the exterior, a network monitoring system scrutinizes the network for issues sourced by overloaded or crashed servers. For instance, to know the status of a web server, monitoring software might sporadically send an HTTP request to obtain a page. For e-mail servers, a text message might be sent via SMTP & recovered by POP3 or IMAP.

Generally measured standards are response time, accessibility & uptime, though both reliability and consistency measures are beginning to obtain popularity. The extensive incorporation of WAN optimization tools is having negative effects on most of the network monitoring devices – particularly when it is about observing precise end-to-end response time since they restrict round trip visibility.

Internet server monitoring


Monitoring an internet server denotes that the owner of the server always notified if one or more of services go down. Server monitor could be internal, for example, web server application verifies its status and informs the proprietor if some services go down, and external, i.e. some web server monitoring firms verify the service status with certain regularity. Server monitoring can cover a test of system measures, such as memory usage, CPU usage, disk space and network performance. Also, it can comprise application monitoring, such as verifying the procedures of programs such as Nginx, Postgres, Apache, MySQL and others.

External monitoring is more dependable, as it keeps working when the server totally goes down. Also, manyserver monitoring tools have performance benchmarking, alerting abilities & the capability to connect certain entrances with automatic server responsibilities such as performing a backup.

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Friday 26 September 2014

Network Simulator Software – Managing Network Operation is Now Hassle Free

Testing remote connectivity options are generally more demanding compared to test the local area network. Remote connectivity generally involves the utilization of transmission devices that aren’t managed or own by the client. These tools are normally not accessible to the network administrator for examining purposes. As a result, the network administrator must find means to analyze the projected network plan without having access to the real transmission devices.

The designers can make use of the following techniques to check the remote connectivity designs:

• Simulation Software

• Prototype testing making use of simulated links

• Pilot testing in the real environment


Simulated settings can provide a means to analyze device configuration & operation. Following the design is examined in the simulated setting; remote connectivity could be additionally examined in a test installation.

SNMP Simulator (Network simulation software):

SNMP Simulator provides the designers several tools for checking configuration ahead of executing them on real devices.
Simulation

The advantages of using this approach are:

Lower expenditure – prototype networks are costly to develop & maintain. Networking mechanism configuration options change quite often. Thus, maintaining a test setting up-to-date could be demanding.

Adaptability - SNMP Simulation software can support many different types of devices& connectivity options. Altering configuration & topologies is usually much easier and quicker in a simulation setting.

Scalability – Installing a large or complicated network in a lab setting is unproductive.

Control – SNMP simulation software permits the network administrator to handle the entire network operation better. The network architect can also control the kinds of traffic to send over the network & the speed at which traffics are sent. Also, the architect can prevent the simulation to detain and scrutinize TCP or IP packets at many points in the network.


MIMIC SNMP Simulator:

MIMIC SNMP Agent Simulator creates a network of up to 100,000 SNMP-manageable devices. You can create any SNMP-based device with any number of public or private MIBs to run a large variety of device configurations with your SNMP management application. MIMIC MIB Wizard can compile any number of MIBs, in any order at the same time. MIMIC ships with a large number of pre-compiled MIBs, networks and devices from the leading networking companies.

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Wednesday 24 September 2014

NetFlow – What It Is All About

NetFlow is a network protocol created by Cisco for the collection & screening of network traffic flow through switches and routers. NetFlow is widely used by IT pros to scrutinize network traffic flow & volume to make sure from where traffic is coming, where it’s going to, and also how much traffic is being produced. NetFlow-enabled routers forward traffic statistics as NetFlow documents which are then gathered by a NetFlow collector. The collector performs the real traffic analysis & presents it to the users. Collector can be a software or hardware appliance. gambit_pic_1NetFlow has turned out to be a de-facto industry standard and is backed up by platforms other than CISCO comprising, Juniper, HP, Dell and Netgear, Huawei, Ericsson and Alcatel-Lucent.

While screening the performance of networks and applications, the more insight you’ve into the real traffic, the better. If you collect all the traffic the data volume will be very high. NetFlow offers this insight and also reduces the volume significantly. Without the requirement of sniffers or probes, you can swiftly and constantly keep an eye on the composition of the traffic navigating your most complicated links. MIMIC NetFlow simulator creates an easy way to generate NetFlow traffic from thousands of devices in the shape and pattern you want. It enables you to promptly pick up bandwidth hogs, DDos attacks & inefficient traffic, and offers you a familiarity of how applications are making use of your network. No doubt, these insights are significant in deciding how to prioritize traffic and on the formation of policies to eradicate inefficient traffic.



MIMIC NetFlow Simulator generates a variety of flows and enables you to fully test your applications. Since you have a complete control over generated flowsets you can easily verify that your graphing application is correctly displaying the values, and your collector correctly collects precisely generated flowsets. The MIMIC NetFlow Simulator is the industry's first integrated simulation tool supporting NetFlow and SNMP. It allows developers to perform real world, integrated device simulations. Network management now will be much easier than ever before.


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Tuesday 23 September 2014

A Complete Overview of SNMP

For network systems, supervising the current status of the network, devices and the traffic is a must. And for this reason, one should understand how SNMP works, and how it makes the job of monitoring data simple.

Basis function of SNMP:

SNMP (Simple Network Management Protocol) was developed as part of many Internet protocols. Nowadays, it’s used widely to control devices connected to various kinds of network systems.

How Simple Network Management Protocol work?

Let’s have a look at an example of how SNMP works. Imagine that there’s an NMS (network management system), and it has many "mini networks" affixed to it. There’s a steady flow of data moving forward and backward, which should be controlled by the major network system. To make this procedure simple, an SNMP agent is installed in all of these network components.
Each SNMP component has diverse responsibilities, but what they basically perform is offer feedback info on each network component to the mainstream network. The info that’s processed comprises relaying facts regarding accessible system resources, programs running, memory, traffic etc. All the mainstream operating systems, from UNIX to Windows, could be configured to have SNMP components installed.

SNMP editions:


Usual elements of an SNMP:

Relying on the network, a Simple Network Management Protocol could have many elements, but even the simplest have the following:

• Network elements – this is the SNMP component. The info contained here is what‘s transmitted back to the NMS (network management system). Parts that can comprise a component range from printers to routers to hubs.
• Agent – this is the program that’s in the network component that makes the transmission of data to the NMS. Its main function is to check the diverse aspects & changeable in each network component.

Instances of SNMP messages:

There’re many kinds of SNMP messages that could be released or developed by the major network. Some of the messages are:

• SNMP TRAPs – The SNMP TRAPS a distinctive message sent to the major network system via one of the components it’s controlling in case it falls short to function appropriately or hardware malfunction takes place.


• SNMP GET - This message is utilized by the major network to obtain data from 1 of the other network components. To modify some statistics, SNMP SET is used whereas SNMP MIB is utilized to adjust the changeable in both software and hardware.


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Wednesday 3 September 2014

SNMP Trap Fundamentals!

SNMP trap is one of the five type of fundamental message utilized in SNMP protocol. What produces an SNMP trap distinctive from other kind of message is the truth that it’s the only procedure that could be initiated directly through an SNMP agent within the field. They asynchronously generated messages. Other type of core SNMP messages are either instigated through the SNMP managed or subjected in reply to SNMP manager’s message. This is what creates a trap very crucial as well as the most typical SNMP message within most of the networks.


http://www.gambitcomm.com/site/images/MIMIC_diagram6.JPG

SNMP traps are most usually issued by one of the two different device types. Some devices, particularly those constructed in recent times, are capable to send SNMP without any help to aware an SNMP manager while it experience an issue. Not like other protocols, SNMP traps offer no affirmation that the message is collected by the SNMP manager. Latest editions of SNMP comprise a new kind of message known as “inform" message. A SNMP inform message is validated by the SNMP manager. However, if SNMP agent doesn’t see authentication from SNMP manager that it’s inform message has been collected, it resends the inform message.

There’re two major means to transmit helpful info utilizing SNMP traps. One is called as "granular traps". Well, Granular trap might be differentiated from each other since they each have an exclusive recognition number. The SNMP manager collecting the SNMP traps from the equipment will find the Object Identifier (OID) within a translation folder called a MIB (Management Information Base). Since granular traps utilize distinctive identification number to sustain this lookup procedure, no true alarm data essentially requires to be contained inside the SNMP trap. And this decreases bandwidth used by SNMP traps, since they aren’t sending superfluous info via the network that the Simple Network Management Protocol (SNMP) manager could effortlessly find on its own.

You can use MIMIC SNMP Simulator to generate any type of trap or trap storms. You can generate thousands of traps from one or more devices. Each of them can be of a different type or with different varbinds. You can also use the trap recorder to record the traps generated by any device and then play it back. MIMIC Simulator makes it much easier to test your network management application or a trap receiver.

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Wednesday 27 August 2014

SNMP – The Most Renowned Protocol for Network Management

Simple Network Management protocol or SNMP, is a renowned protocol for network management. It’s utilized for gathering info and configuring network devices like hubs, printers, routers and switches on an IP (internet protocol) network. Microsoft windows 2003 server offers SNMP agent software which works with 3rd party SNMP management application to observe the status of managed applications and devices.

SNMP background:
 

Developed in the year of 1988 to supply network-device-monitoring competence for TCP or IP-based networks, Simple Network Management protocol (SNMP) was accepted as an Internet standard in the year of 1990 by the IAB (Internet Architecture Board) and has been used widely since that time. More lately, IPX (Internetwork Packet Exchange) based networks have supplementary support for Simple Network Management Protocol. At present, most of the network device retailers’ supply SNMP support in their stuffs.

mimic3 Automating network managements:
 
Bigger networks with larger amount of nodes are complicated to handle without good number of staffs to scrutinize each computer system. SNMP, which is used widely in LANS (local area networks), allows you to scrutinize network nodes from an administration host. Users can scrutinize network devices like servers, printers, workstations, hubs and bridges, and also services like DHCP (Dynamic Host Configuration Protocol) or WINS (Windows Internet Name Service).

SNMP Agent:
 
Well, the agent is a type of program that’s packaged inside the network component. Allowing the agent enables it to accumulate the management information record from the devices close by and makes it accessible to the SNMP manager, when it’s asked for. However, these agents can be specific or standard to a retailer. Some of the key functions of SNMP agent’s are:

• Accumulate management information regarding its local surroundings.

• Stores & retrieves management info as classified in the MIB

• Acts like a substitute for some non SNMP viable network node.

• Signals a happening to the SNMP manager

Fundamental commands of SNMP:
 
The straightforwardness in information exchange has made SNMP as widely approved protocol. Few of the basic commands of SNMP are the following:

• GET – The GET command is a request propelled by the SNMP manager to the controlled device. It’s performed to recover 1 or more values from the controlled equipment.

• GET BULK – The GET BULK command is utilized to recover large data from big MIB table.

• SET: This command is utilized by the SNMP manager to assign or modify the worth of the managed equipment.

MIMIC SNMP Simulator:
 
MIMIC SNMP Simulator creates a network of up to 100,000 SNMP-manageable devices. You can create any SNMP-based device with any number of public or private MIBs to run a large variety of device configurations with your SNMP management application. It lets you generate thousands of traps to simulate disaster scenarios. 

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Thursday 21 August 2014

Simulation of Network Now Will Be Extremely Easy With MIMIC NetFlow Simulator!

Network simulation is a method where a program replicates the action of a network either by measuring the interaction amid the diverse network entities using arithmetical formulas, or capturing & playing back interpretation from a manufacture network. The act of the network as well as various services & applications it supports could then be examined within a test lab. Various characters of the surrounding could also be customized in an organized approach to evaluate how the network might act under diverse conditions.

What is network simulator?
 
Network simulator is an application or software that forecasts the action of a computer network. In network simulators, typically the computer network is replicated with applications, links, devices, etc. and then the performance is evaluated. Normally, the user can then modify the simulator to meet their exact analysis requirements. Typically simulators come with support for most of the renowned networks and protocols in use nowadays.

http://www.gambitcomm.com/site/images/netflow_sim_constant1.jpg Uses of Network simulator:
 
Network simulator truly serves a diversity of needs. There is always a time and cost concerns in establishing a complete test bed comprising multiple networked routers, data links and computers. Network simulators are considerably fast and affordable. They remove those concerns. Network simulators are especially helpful in enabling researchers to examine latest networking protocols or transformations to active protocols in a reproducible and controlled environment.

With the assistance of a good network simulator, user can design hierarchical networks utilizing different kinds of nodes such as bridges, computers, routers, hubs, mobile units, links, etc. various kinds of WAN (Wide Area Network) technologies such as IP, ATM, TCP and LAN (Local Area Network) technologies like token, rings, Ethernet can all be simulated via a god simulator.

MIMIC NetFlow simulator:
 
There are a wide range of network simulators available today, but not all are as effective as they promise to. However, the MIMIC NetFlow Simulator, industry's first integrated simulation tool supporting NetFlow and SNMP, allows developers to perform real world, integrated device simulations. MIMIC NetFlow Simulator generates a variety of flows and enables you to fully test your monitoring or collector applications. Since you have a complete control over generated flowsets you can easily verify that your graphing application is correctly displaying the values and your collector correctly collects precisely generated flow sets.

If you are interested in creating your test lab with devices and topology, MIMIC Simulator Suite allows you to create SNMPv1, SNMPv2c, SNMPv3, IPMI, Cisco IOS, Juniper JUNOS, Telnet/SSH and now Web based devices. Simulation of complicated network is now extremely easy and effortless with MIMIC NetFlow Simulator.

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