Emulate WAN links up to 1 Gbps to test application performance in the lab

Linktropy 5510

Download the Linktropy Datasheet:

The Linktropy 5510 WAN Emulator combines unsurpassed precision with unmatched ease-of-use. The Linktropy 5510 simulates wide-area network bandwidth, delay, jitter, packet loss, congestion, and other important link impairments at speeds of up to 1 Gbps.

The Linktropy 5510 emulates terrestrial, wireless, satellite, internet and other wide area networks to test applications under a spectrum of real-world conditions. Through an intuitive, browser-based graphical interface, you can install the Linktropy 5510 and begin testing within minutes.

The Linktropy 5510 emulates WAN links of up to 1 Gbps in a compact, cost-effective appliance, ideal for both desktop and rack-mount environments.


  • Bandwidth
  • Latency & Jitter
  • Packet Loss
  • Congestion
  • Other impairments

Linktropy 5510 Capacity

  • Link speeds to 1 Gbps
  • Full line rate 1 Gbps throughput in each direction with any sized packets
  • Gigabit Ethernet interfaces – copper or optional SFP ports
  • Compact, 1U-sized appliance
Easy to Use

The Linktropy 5510 WAN emulator is a snap to install and configure. Just plug in the Ethernet cables, specify your link conditions, and begin the emulation. No software to install, no training needed. The Linktropy GUI combines the responsiveness of an application with the convenience of a standard web browser.

Bandwidths up to 1 Gbps

Emulate links of any speed from 300 bits per second to 1 Gbps in each direction.

Copper or SFP interfaces

The Linktropy 5510 is available with either copper RJ45 Gigabit Ethernet interfaces or SFP Gigabit Ethernet interfaces for convenient connection to any copper or fiber-based network.

Delay up to 10 sec

Emulate latency from 0.1 millisecond up to 10 seconds in each direction in a constant, normal, or uniform distribution, or replay latency conditions captured from the live network.

Error Emulation

Specify loss as a packet loss rate, bit error rate, or both.


Determine the effects of congestion on bandwidth and jitter-sensitive applications by utilizing Linktropy's background traffic emulation.

Advanced Emulation Parameters

Verify that applications properly handle anomalous packet reordering and duplication conditions without inducing stability or performance problems. Adjust the framing overhead and maximum queue depth to match real link behavior.

Capture and Replay Live Network Conditions

Capture live network conditions with the Linktropy Recorder and replay them through the Linktropy WAN emulator to reproduce the varying characteristics of the production network in a repeatable test environment.

Traffic Monitor

See a visual display of the current traffic, including throughput graphs and link statistics. Download up to 24 hours of statistics for analysis.


Install the Linktropy WAN emulator as either a bridge or router for easy integration with any test configuration.

Automated Testing

Take advantage of the Linktropy Scheduler or the command line interface to automate a series of tests.

Unsurpassed Precision

Test with confidence - Linktropy WAN emulators offer unsurpassed precision to ensure accurate and reproducible results.

Application Testing

You've developed your client/server application and it works great on your local network. But how well will it run when users are located across town from the server, or on the other side of the world? Use the Linktropy 5510 to ensure your application works well under all conditions before deployment.


Your applications aren't performing well and you need to find out why. Use the Linktropy 5510 in the lab to help pinpoint the cause of the problem and validate solutions without disrupting the production network.

Network Validation

You have to choose between terrestrial, wireless, satellite, and other WAN technologies to connect offices across the globe. The cost trade-offs are easy to quantify, but how do differing delay, jitter, and loss affect performance of critical applications?


Can tweaks to application settings improve performance? How much benefit will an accelerator, traffic shaper, or application proxy provide? Use the Linktropy 5510 to find out.

Website Performance

See your website as your users experience it and make sure it's responsive. Verify that your e-commerce system doesn't leave purchasers hanging when their link is slow.

VoIP and Video

IP voice and video work perfectly in demonstrations on the LAN, but quality degrades with latency, jitter, and packet loss. Evaluate quality under real-world conditions to verify that they meet your requirements before making a commitment.

Disaster Recovery and Remote Backup

Data at remote offices needs to be backed up to a central facility, while centralized records have to be moved off-site for disaster recovery. Use the Linktropy 5510 to ensure that bandwidth limitations and link latency do not prevent the process from completing in the available time.

User Interface

The Linktropy 5510 is configured through an intuitive, easy-to-use, browser-based interface. Screen shots for the main Configuration Window and Linktropy Monitor are shown below.

5510 GUI

Configuration Window with Link Emulation Tab (click to enlarge)

Linktropy 5510 Monitor

Linktropy Monitor (click to enlarge)

Network Emulation

Emulate the bandwidth, delay, and loss characteristics of T1, E1, T3, E3, OC-3, ATM, xDSL, Frame Relay, and dialup modems. Determine how much bandwidth you need to keep your applications running smoothly.
Mobile wireless networks offer great convenience for professionals on the road, while fixed wireless can be a boon for disperse communities, but performance may not match terrestrial options. Use Linktropy to find out if a wireless solution fits your needs.
What happens to e-commerce connections when the internet is busy? What happens to the quality of your VoIP calls? Use Linktropy to find out beforehand and plan appropriate countermeasures.
With latency in excess of 500 ms and bit error rates as high as 1x10-6, satellite networks can create havoc for protocols and applications. Linktropy WAN Emulators were especially designed to accommodate the long delays and high error rates of satellite networks, and include the ability to simulate bit errors in addition to packet loss.
Emulated Links 1 link
Ports 2x Gigabit Ethernet (copper or SFP)
Max. Aggregate Throughput 2 Gbps
Maximum Packet Rate 2,976,200 packets per second (full line rate)
Maximum Frame Size 9 KB
Emulation Settings
Bandwidth 300 bps - 1 Gbps in 1 bps increments
Delay 0 ms - 10 sec. in 0.1 ms increments;
constant, uniform, normal distributions
Packet Loss Rate 0-100% in increments of 0.0001%
Background Traffic 0-100% in increments of 0.1%
Additional Parameters Bit Error Rate, Packet Reordering, Packet Duplication,
Queue Depth, Framing Overhead,
Linktropy Scheduler for emulating dynamic WAN conditions
Interfaces 1x Gigabit Ethernet
1x RS-232 serial console
Security SSL / SSH
Environmental and Physical Specifications
AC Input Voltage Auto ranging 100 VAC to 240 VAC
AC Input Frequency 50 to 60 Hz
Power Draw 41 Watts
17" W x 12" D x 1.75" H (1 RU)
431 mm W x 305 mm D x 43.5 mm H (1 RU)
21" x 19" x 7" (53 x 49 x 8 cm)

10 lbs. (4.3 kg)
14 lbs. (6.3 kg)

32° to 104°F (0° to 40°C)
-4° to 158°F (-20° to 70°C)

5% to 90% (non-condensing)
5% to 95% (non-condensing)
Certifications FCC Class A, CE, RoHS
Warranty & Support
Hardware Warranty Included with product license
Support and Maintenance Included with product license
Ordering Information
Part Number L5510-1G
Product License 1 year: L5510-R1YR
3 years: L5510-R3YR
SFP ports option L5510-SFP: replace standard RJ45 ports with SFP ports