The Network Simulator provides an integrated, versatile, easy-to-use
GUI-based network designer tool to design and simulate a network
with SNMP, TL1, TFTP, FTP, Telnet and Cisco IOS devices.
WebNMS Simulation Toolkit presents the Network Simulator to
test and demonstrate SNMP, TL1, TFTP, FTP, Telnet and Cisco IOS
management applications in a virtual, scalable network environment.
Ability to simulate 100,000 devices simultaneously for scalability
testing, trap simulation for fault management testing, configuration
of device values and simulation types for performance testing, behavior
simulation for testing realistic/negative test scenarios across
network devices, start/stop of network at runtime, automated network
simulation, visualization of network topology and easy-to-use GUI
enables full-fledged simulation of large networks.
Network Simulator Features and Benefits
Complete simulation of SNMPv1, SNMPv2, and
SNMPv3 devices. The SNMPv3 agent can respond to v3
requests in addition to SNMP v1/v2c requests.
Complete simulation of TL1 devices with multiple
AID and MPB values, Acknowledgment messages, Output Response
Messages, Autonomous Messages, and Jython scripts to simulate
Complete support for TFTP server and client and
FTP client for individual devices.
Support for executing Telnet commands in SNMP
Supports simulation of Cisco IOS Software to simulate
Cisco routers and switches, that can be accessed using
in one PC
Integrated Network Designer wizard designs and
creates a network simulation with multiple SNMP/TL1/CLI/TFTP/FTP
devices at one shot.
Each device in the network, supports its own MIB/TCS
file, read/write community, unique IPv4 or IPv6 Address, port number
combination and unique values.
The number of agents that can be run simultaneously
on a single PC is 10000 in Windows, 100000 in Linux. This enables simulation of large enterprise
Devices can be assigned IPv4 address or IPv6 address.
of Cisco IOS Software
Device Library with pre-configured Cisco series Routers
and Switches. The devices fully supports SNMPv1, v2, v3;
TFTP and Cisco IOS software.
Cisco IOS commands implemented in User, Privileged, Configuration,
Interface configuration, Router and Vlan modes.
Extensive script APIs for customization of Cisco IOS commands.
Script Editor to view and edit Cisco IOS command behavior
Command Configurator to define new Cisco IOS commands.
Network Automation Wizard to automate the most
common tasks performed by the network devices.
Configure tasks to be performed on any device and set
hourly/daily triggers to instigate each task.
Automatic script generation that schedule and trigger
Topology Editor to establish inter-connections
across routers, switches and other devices in the network,
through drag and drop.
Visualize the network topology.
Disconnect existing connections in the topology.
and Replay of Real Networks
The Network Recorder records any number of target
devices simultaneously by providing the starting and ending
IPv4 or IPv6 Address.
The recorded network can be replayed instantly in the
The recorded configuration can also be suitably modified
to re-create problems or test configuration variations.
Record and Replay
The Trap recorder records SNMP v1 and SNMPv2c
traps by listening for traps at the specified port.
The recorded traps can be stored in XML files and replayed
in the simulator as request-based, threshold-based or
of Agent Values
The user can customize and control all SNMP and TL1
command responses from the UI or using Jython scripts.
The Behavior simulation wizard help you to model
agent behavior and define inter-relationships among MIB
variables, among TL1 commands, and across devices in the
network using jython scripts.
Auto-generation of scripts for selected methods
and bulk addition of scripts across network devices
makes the behavior simulation wizard more user-friendly
Powerful built-in script APIs enable you to automate
a complete network environment.
SNMP PDU Customization
Supports customizing the request and response SNMP PDU
to send garbled/invalid responses to test the SNMP managers'
robustness in the event of receiving bad packets.
The PDU scrambler also provides access to the SNMP
script API methods.
Networks through RMI
The SNMP and TL1 agents in the simulated network can
be managed via RMI (Remote Method Invocation) by executing
user-defined tasks at runtime. This helps in test case
automation of manager applications.
The RMI client API defines the methods in the
simulator, which can be accessed via RMI to programmatically
update values for specific devices, add/delete SNMP agents
in the network, start and stop individual devices, send
SNMP v1/v2/v3 traps and TL1 autonomous messages etc.,
within the simulated network.
TFTP, FTP and
TFTP client and server and FTP client
is implemented to enable transfer of files between the
manager and agents using TFTP and FTP. The file transfer
can be done from the Network designer UI. Runtime configurations
can be made through scripts and RMI.
Telnet support for SNMP devices to enable execution
of telnet commands on the simulated devices.
Extensive script APIs for customization of Telnet commands.
Script Editor to view and edit Telnet command behavior
Command Configurator to define new Telnet commands.
Support for SNMPv1,v2,v3 Traps and SNMP v2, v3 Informs.
Supports configuration of SNMP Traps and Informs with
varbinds which can be customized to be sent at different
Supports configuration of TL1 Alarm messages with varied
combinations of textblocks and severity for a single autonomous
code which can be customized to be sent at different scenarios.
Simulates SNMPv1, SNMPv2 and SNMPv3 error conditions.
Jython scripts can be used to configure error conditions
Simulates TL1 error responses.
of IPv4 or IPv6 Address
The Network Simulator provides the facility to dynamically
configure IPv4 or IPv6 Addresses when starting each agent instance
in the network.
This facility is supported in Windows NT, 2000, XP
and Linux OS.
Individual agents in the network can be started or stopped.
Devices can be added individually or in bulk
A device can be copied and pasted in the network
SNMP and TL1 agent values can be configured individually
for each device.
Real SNMP agents can be recorded for individual SNMP
devices in the network.
Traps/Autonomous Messages can be configured for individual
SNMP and TL1 devices in the network.
Scripts can be configured individually or in bulk.
Modification and Bulk Script Addition
The IPv4 or IPv6 Address and Port numer can be modified across
all or selected agents present in the network, at one
Interested OID values can be modified across all or
selected agents present in the network.
Template based bulk configuration of SNMP agent values,
traps, informs and behavior.
Template based bulk configuration of SNMP, TFTP, CLI
and Telnet properties.
Same script file can be configured in bulk, to the
specified range of IPv4 or IPv6 Address in the network.
New SNMP and TL1 devices can be added to the network
individually or in bulk
New MIBs/ TCS files can be added to individual SNMP
and TL1 devices in the network.
and Installing the Network / Devices in Device Tree
The created network can be packaged and installed with
the desired configurations in any location to give demonstrations
of management applications or during trade shows.
The new devices configured in the device library can
be packaged and installed with the desired configuration.
The template based model of device creation and data
storage offers the following benefits:
Enables creation of large networks in seconds.
Occupies very less storage space of PostgreSQL data for
the network devices.
Enables template based configuration and modification
of devices. (i.e) if 50 devices are created using
Template device "A", any bulk modifications
can be achieved by modifying this template device.
Offers enhanced network performance.
An extremely user-friendly graphical interface makes
the Network Designer very easy to work on.
Intuitive tools and wizards offer you the complete Network
Simulation experience and shorten the time-to-market.
The SNMP Mib Browser and TL1 Craft Interface tool (TL1
Browser) facilitate complete testing of the simulated
devices in the network.
SNMPv3 configuration tool to configure SNMPv3 users
in USM and VACM tables.
The TL1 Message Builder facilitate creating and modifying
XML-based TL1 message definitions.
Command Line Utilities
Utilities to create. package, install and start multiple networks from command line
for automated testing.
Value Added Features
Logging error messages
Persistence in Database.
Enhanced Network Performance.
Network Simulation Experience
The Network Simulator offers a simplified and complete network
simulation experience. The following diagram depicts this functionality
offered by the Network Simulator.
The Network Simulator can design and simulate a network with SNMP,
TL1, TFTF, FTP, Telnet and Cisco IOS devices, in four simple steps:
1. Add devices to the Device tree : Add devices with the
required configuration to the device tree in the Network Designer.
Pre-configured devices are also bundled with the toolkit.
2. Create the Network: Create and add bulk devices to
the network, at one shot.
3. Configure the Network devices: Configure the devices
in the network, if required.
4. Start the Network : Start the network or start individual
agents in the network. The MIB Browser and TL1 Craft Interface
test tools, can be used as the manager tools for testing.
Windows XP+SP2 / Vista
Windows XP with Hyper Threading enabled
Linux RH 9.0 and above
Linux RH AS, ES, WS and Debian
Fedora - 3 core
JRE 1.6.0_11 is bundled with the product for all
PostgreSQL Database 9.2.1 is bundled with the product for all operating
About ZOHO Corporation
Zoho Corporation provides affordable software for database migration, management and provisioning of complex networks, systems, and IT applications. With a broad product portfolio and an active customer base ranging from enterprises, equipment vendors, and service providers, Zoho Corporation has emerged as a very affordable and high-quality alternative to expensive software that is common in this industry.
Zoho Corporation has offices in CA, Austin, New Jersey, Chennai, Singapore, Tokyo and Beijing. It has a well-trained partner base around the globe and thousands of customers world-wide. For more information, call 925-924-9500 or visit our Web site at: www.webnms.com.
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