The ClearSight Network Time Machine is a next generation data capture and analysis system, capable of capturing from 10/100/Gigabit full duplex networks at full line rate, then analyzing data using the Award Wining ClearSight Networks Analyzer software.

The ClearSight Network Time Machine can handle 100% capture of data from two channels on10/100/Gigabit networks at full line-rate. This opens up the possibility
of collecting data over an extended time period under experimental conditions in order to capture and identify abnormal packets that can cause intermittent faults
or packets associated with unauthorized access.

How does an IT manager:

See what happened in the network
Troubleshoot and analyze network issues
Know if critical data is lost
Find out which applications are bottlenecks to preserve
Maintain a healthy network

ClearSight's Network Time Machine is the only answer to all questions.

Key Features and Benefit

Four models fit every requirement and budget
Captures 100% of traffic at full line rate (Premium)
Long term data capture up to 9.9TB
Real-time flow analysis (Standard and Premium)
Real-time statistics
Hardware based 20ns timestamp resolution
Full cover CSA features for post analysis
Supports RAID50 protection (Premium)
Support for remote control

Network Time Machine Premium

The ClearSight Network Time Machine Premium is capable of capturing line rate data from a 10/100/Gigabit network via a tap and storing the captured data on internal hard drives. The data is extracted and analyzed through the use of history graphs and reports generated by ClearSight Networks Analyzer software, integrated with Network Time Machine Premium.

Major Features

Captures 100% of full duplex traffic at full line rate
3.3TB large storage (up to 9.9TB)
Real-time flow analysis and statistics
Hardware based 20ns timestamp resolution
Full ClearSight analyzer features set for post analysis and reporting
Supports RAID50 protection
Support for remote control

The Only Instrument to Provide:

Gigabit FDX Router/Switch/Gateway/Firewall performance verification

Verify abnormal behavior at high throughput
Verify packet loss, slow throughput and latency problems
Random abnormality verification

Analysis of large volume transmission such as video streaming
Video quality testing and content reconstruction

Case Study -- Firewall Performance Verification

Spirent Test Center (STC) and Network Time Machine create an ideal environment for performance verification of firewalls.

STC provides the traffic to emulate both server and client for firewall stress testing. The objective is to understand firewall behavior as it reaches its performance limit, while gradually increasing the volume of traffic and number of users.

Network Time Machine is connected in the test network to capture and store 100% of the traffic during the test.

In this illustration STC is configured to increase server load linearly.

The server starts to behave abnormally 40 minutes into the test at approximately 2,200 transactions per second.

Since Network Time Machine has a capacity in excess of 3 TBytes of data, every packet is captured, stored and time stamped for analysis.

Network Time Machine's analysis function clearly reveals that TCP retransmissions take place as the firewall reaches its performance limit, preventing the firewall from processing traffic within allowable time constraints and causing server malfunction.

Specifications

The ClearSight Network Time Machine Standard is capable of capturing
data from 2 channels of a 10/100/Gigabit network via a tap and storing
the captured data on internal hard drives. Data is extracted and analyzed through the use of history graphs and reports generated by ClearSight Networks Analyzer software, integrated with the Network Time Machine Standard.

Major Features

Reliable capture at 70% full duplex sustained rates
1.5TB large storage
Real-time flow analysis and statistics
Hardware based 20ns timestamp resolution
Full ClearSight analyzer features set for post analysis and reporting
2U rack mount
Supports remote control

User Applications

NEMs -- Network device performance testing

Purpose

Long term functional test of network devices before
deployment at customer site.

Verification/troubleshooting in the lab after failure
at customer site.

Network Time Machine Solution

Network Time Machine can capture long-duration
data from a full duplex Gigabit Ethernet link.

It can also protect/lock packet data related to
problems based on SNMP traps. State-of-the-art
ClearSight Analyzer troubleshooting abilities are
also included.

ISP/Carrier -- Triple Play network troubleshooting

Purpose

Troubleshoot VoIP/video issues/failures during ISP's
VoIP/Video service.

Measure the quality of audio/video service over long
time intervals.

Pinpoint the cause of poor service quality down to
the packet level.

Network Time Machine Solution

Apply packet level analysis based on failure time.

Identify the cause with ClearSight Analyzer's
playback functions.

Identify the failure time based on VoIP QoS Alarm
and Call Logging. Verify the failure from audio/video
content reconstruction.

Specifications

Network Time Machine Portable

The ClearSight Network Time Machine Portable is capable of capturing data from 2 channels of a 10/100/Gigabit network via a tap and storing the captured data on internal hard drives. Data is extracted and analyzed through the use of history graphs and reports generated byClearSight Networks Analyzer software, integrated with the Network Time Machine Portable.

Major Features

Reliable capture at 50% full duplex sustained rates
Supports 10/100/1000 full duplex
370GB large storage
Realtime flow analysis and statistics
Hardware based 20ns timestamp resolution
Employs Full ClearSight analyzer features set for post analysis
and reporting
Easy to carry - 17.6lb
Supports remote control

Connection Procedure