Network Connectivity Tester - LinkRunner AT | NETSCOUT

LinkRunner AT Network Auto-Tester

Test and validate copper and fiber Ethernet connectivity in less than 10 seconds
  • AutoTest that simplifies network connectivity validation for Fiber or twisted pair Gigabit Ethernet links in seconds
  • TruePower™ loaded PoE test for 30W PSE
  • Discover nearest switch name, port#, VLAN and IP subnet provisioned
  • Verify twisted pair Ethernet cable length and wiremap
  • Remote collaboration enabled with automated test result upload, management and reporting in Link-Live Cloud Service
Test Drive LinkRunner
Link-Live Cloud Service
City of Mishawaka IT Case Study


The LinkRunner AT Network Tester is a rugged, fast, and complete copper and fiber Ethernet network connectivity tester. The LinkRunner AT Network Auto-Tester performs the essential set of network connectivity tests in just 10 seconds, enabling you to quickly and accurately identify and solve network connectivity problems.

The LinkRunner AT's key features include multiple user-configured AutoTests, cable length measurement, cable fault location and fault type, TruePower™ Power over Ethernet (PoE) test up to 30W, Ethernet speed and duplex verification at 10/100/Gigabit rates, UTP cable testing, twisted pair and fiber optic link testing, nearest switch identification, DHCP, DNS and Gateway connectivity tests, and Ping and TCP port connectivity tests to up to 10 user-selected targets.

Test results can be automatically uploaded to the encrypted and highly secure Link-Live results management cloud service at the completion of each test, facilitating more collaboration between network engineers and technicians greater job visibility, project control, and fleet management. ​



Get Answers Fast with AutoTest

With a three second startup and a user-defined AutoTest that performs your required set of connectivity tests in seconds, the LinkRunner AT network tester enables you to quickly and accurately identify and solve network problems.

  • PoE loaded test up to 30W
  • Link speed and duplex (actual and advertised)
  • RX pair, polarity and signal level
  • 802.1x authentication
  • Discover the nearest switch/slot/port and data/voice VLAN
  • DHCP discovery with subnet and DHCP server addresses
  • Gateway and DNS server availability and responsiveness
  • Ping or TCP port connectivity tests to 10 user-defined targets

AutoTest runs a set of connectivity tests in seconds

Discover Nearest Switch and VLAN

The LinkRunner AT uses the IEEE Link Layer Discovery Protocol (LLDP) plus the Cisco and Extreme Discovery Protocols (CDP and EDP) to display the VLAN and nearest switch model, slot, and port.

The LinkRunner AT displays critical nearest switch information including:

  • Switch name and model
  • IP address
  • Chassis, slot and port
  • VLAN IDs
  • Duplex and speed (actual and advertised)
  • Signal Strength
  • Connection (MDI or MDI/X)
  • PoE voltage and power (actual and test limit)
  • Graphical representation of power on pairs

1 Gig link on copper with PoE on port 30

1 Gig link on fiber on port 6

TruePower™ PoE Testing - Power Over Ethernet Testing

You can quickly validate PoE performance by drawing actual power up to the 802.3at standard 25.5W. Load the circuit to stress switches, cabling and patch panels, all while measuring the voltage and pairs being used. The ability to validate the TruePower delivery before installing cameras, APs and phones ensures smooth deployment.

PoE setup

IP V4/V6 Addressing

Validate the IPv4 DHCP auto-negotiation process, subnet and DHCP server. Verify IPv6 Link-Local and Global addressing.

IP Addresses

Key Service and Device Connectivity

The LinkRunner AT performs either a Ping or a TCP port open test to verify connectivity. The connection to the default Gateway, preferred DNS server and alternate DNS server is tested, including response time. The connection to up to 10 user-defined target devices, servers or services is tested using Ping or a user-defined TCP port number. Results include response time and IP address if a URL was used as a target.

Ping & TCP Port Connectivity

802.1x Authentication

Verify access to secure networks using 802.1x and MAC Access Control Lists (ACL). The included LinkRunner AT Manager Software can be used to configure 802.1x EAP type, download certificates, and enter passwords.

MAC ACLs can be validated using MAC spoofing.

Cable Length, Wiremap and Location

Cable Location
Locate cable runs with toning, switch port advertisement, switch port link light blinking, and remote cable identifiers. Toning supports both analog and digital IntelliTone modes.

Cable Wiremap and Length
Check patch cables using the built in wiremap port including pin-to-pin connection, or installed wiring for length, shorts, or opens or split pairs.

Easily find opens, shorts, miswires, and split pairs three different ways:

  • On non-terminated cable
  • With an WireView Cable Identifier
  • With the built-in wiremap port on the side of the LinkRunner AT

Good Cable including length

A mis-wired cable with pairs 1,2 and 7,8 swapped using cable identifier #4

A cable with an open on 4 using the built in wiremap port

A mis-wired cable with pairs 3,6 & 4,5 split

Packet Reflector

The LinkRunner AT packet reflector mode allows it to be used as a remote device during end-to-end network path performance tests to validate LAN and WAN throughput capabilities up to 1Gbps. The reflector mode can be configured to swap MAC and/or IP addresses.

LinkRunner AT 2000 supports packet reflection for:

  • OptiView® XG Network Analysis Tablet
  • OneTouch™ AT Network Assistant
  • EtherScope™ Network Assistant
  • MetroScope™ Service Provider Assistant
  • Any device generating 802.3 frame or IP packet streams

Two Models: LRAT-2000 and LRAT-1000

LinkRunner AT is available in two models: LRAT-2000 and LRAT-1000. LinkRunner AT 2000 adds the following exclusive* features:

  • Fiber support
  • TruePower™ PoE loading
  • IPv6 support
  • Reflector support
  • More reports: 50 instead of 10

*These exclusive features cannot be added to the LinkRunner AT 1000.


View and Manage Test Results
Link-Live Reporting Mode
Enable the Link-Live Reporting Mode to have AutoTest results automatically uploaded to the Link-Live Cloud Service. This zero-touch reporting feature speeds and simplifies reporting and ensures that results are consistently saved. Append comments to each test result. You can even add an image to a test result - a photograph of the link under test for example. Results can be automatically saved to job-specific folders to simplify project management. Up to 10 results are held in memory in the absence of a network connection and uploaded later when a connection is available.
Link-Live Cloud Service
Link-Live provides important test results management and reporting capabilities, at no additional charge to the LinkRunner AT. It provides greater job visibility, project control, and fleet management for larger distributed environments. Test results are automatically sent to your secure Link-Live cloud account, providing organizations with a newfound ability to quickly and easily document their network, provide proof of performance and better manage jobs and staff efficiency. In addition, an e-mail of every test result is sent as it occurs, allowing the technician to annotate information about the test and even attached a photo. That annotation is then automatically added to that record in Link-Live, creating a very in-depth understanding as to the performance of each link and mapping endpoint images (wall jacks, devices, serial numbers) directly their switch slot and port.
Link-Live Cloud Service Features:
  • Complementary, no annual service fees
  • Manage, sort and analyze test results
  • Filter results by time, user, network device, errors, instrument, and more
  • Add comments or photos to any test result
  • Automatic filing of tests into specific folders
  • Proxy support
  • Buffer up to 10 test results
Local Reporting Mode
Enable the Local Reporting Mode to facilitate saving of AutoTest results on the tester. Save each result with a unique name. The maximum number of saved results varies by LinkRunner AT model. Connect the tester to your PC via its mini-USB port and use the LinkRunner AT Manager Software to view and manage the saved results.
LinkRunner AT Manager Software
For AutoTest results saved locally on the tester via the Local Reporting Mode the LinkRunner AT Manager Software facilitates management and analysis of test results, test reports and testers. LinkRunner AT Manager Software is an application installed on a Windows(R) PC.
LinkRunner AT Manager Software features:
  • View test results saved locally on the tester
  • Move test results from the tester to a local drive
  • Generate reports in PDF, CSV and HTML formats
  • Configure AutoTest profiles
  • Transfer AutoTest profiles between a tester and a local drive
  • Capture screen images
  • Update tester firmware
Multiple Language Support

The LinkRunner AT fully supports multiple languages including English, French, German, Spanish, Portuguese, Russian, Japanese, and Simplified Chinese. Multi-language support included the LinkRunner AT user interface, getting started guide, user manual and supporting LinkRunner AT Manager software, help files and user reports.


Models & Accessories

Model Number/Name Description

LinkRunner AT 1000 tester with AA battery pack, 4 AA batteries, LinkRunner AT Manager software CD, USB cable, Getting Started Guide, and soft case. See Photo

LRAT-1000 Gold Support:
LRAT-1000-1YS1 year of Gold Support for one LinkRunner AT
LRAT-1000-3YS3 years of Gold Support for one LinkRunner AT

LinkRunner AT 2000 tester with Li-ion battery, Wireview Cable ID #1, RJ-45 coupler, LinkRunner AT Manager software CD, USB cable, Getting Started Guide and soft case. See Photo

LRAT-2000 Gold Support:
LRAT-2000-1YS1 year of Gold Support for one LinkRunner AT
LRAT-2000-3YS3 years of Gold Support for one LinkRunner AT
Includes LinkRunner AT 2000 tester with Li-ion battery, Wireview Cable ID #1-#6, RJ-45 coupler, LinkRunner AT Manager software CD, USB cable, Holster, IntelliTone™ 200 Probe, and a deluxe carrying case. See Photo
LRAT-2000-KIT Gold Support:
LRAT-2000-1YS1 year of Gold Support for LinkRunner AT 2000 kit
LRAT-2000-3YS3 years of Gold Support for LinkRunner AT 2000 kit

Includes LinkRunner AT 2000 tester, two LinkSprinter network testers, LinkRunner AT holster and two LinkSprinter holsters. See Photo

LINKSOLUTIONS-KIT-1YS1 year of Gold Support for one LinkRunner AT 2000 + one LinkSprinter 300
LINKSOLUTIONS-KIT-3YS3 years of Gold Support for one LinkRunner AT 2000 + one LinkSprinter 300
NETWORK TROUBLESHOOTING KIT. Includes: Aircheck G2 Wireless Tester, soft case, AC charger, USB cable, Quick Start Guide, external directional antenna, holster, automobile charger, LinkRunner AT 2000 tester with Li-ion battery, AC charger, IntelliTone™ PRO 200, Wireview Cable ID set 2-6, Large Folding Test Kit Pouch, Holster, RJ-45 coupler, LinkRunner AT Manager software CD, USB cable, Getting Started Guide, soft case Deluxe duffle bag. See Photo
ACKG2-LRAT2000 Gold Support:
ACKG2-LRAT2000-1YS1 year of Gold Support for ACKG2-LRAT2000
ACKG2-LRAT2000-3YS3 years of Gold Support for ACKG2-LRAT2000
Model Number/Name Description

AC Charger replacement

See Photo
LinkRunner AT Lithium Ion Replacement Battery See Photo See Photo
LinkRunner AT AA Battery Pack See Photo See Photo
LinkRunner AT Holster See Photo
SX Gig Fiber SFP transceiver with DDM (850 nm, Multimode) See Photo
LX Gig Fiber SFP transceiver with DDM (1310 nm, Singlemode) See Photo
ZX Gig Fiber SFP transceiver (1550 nm, Singlemode) See Photo
100BASE-FX Fiber SFP transceiver with DDM (Multimode) See Photo
WireView 1
WireView Cable IDs #1 See Photo
WireView 2-6
WireView Cable IDs #2-6 See Photo
Auto Lighter Charger Adapter See Photo


Operating Temperature and Relative Humidity32ºF to 113ºF (0ºC to +45ºC) Note: The battery will not charge if the internal temperature of the tester is above 113ºF (45ºC)
Operating Relative Humidity (% RH without condensation) 90% (50ºF to 95ºF; 10ºC to 35ºC) 75% (95ºF to 113ºF; 35ºC to 45ºC)
Storage Temperature -4ºF to 140ºF (-20ºC to +60ºC)
Shock and Vibration Random, 2 g, 5 Hz-500 Hz (Class 2) 1 m drop
Safety EN 61010-1 2nd edition
Safety (LR-AT 2000 only) EN/IEC 60825-1:2007, EN/IEC 60825-2:2004+ A1:2007 (LRAT- 2000 only)
Altitude 4,000 m; Storage: 12,000 m
EMC FCC Part 15 Class A, EN 61326-1
Certifications and Compliance Conforms to relevant European Union directives Conforms to relevant Australian standards Listed by the Canadian Standards Association
Media Access; Copper RJ-45: 10BASE-T, 100BASE-TX, 1000BASE-T and PoE (IEEE 802.3af and 802.3at); 100BASE FX and 1000
Media Access; Fiber SFP Adapter Port supports 100BASE-FX and 1000BASE-LX/ SX/ZX (LRAT-2000 Only)
Cable Tests Pair lengths, opens, shorts, splits, crossed, straight through and cable ID
Power over Ethernet (PoE) Single ended testing:
  • User-defined testing to IEEE 802.3at class 0, 1, 2, 3, 4 without LLDP negation, or 4 with LLDP negotiation
  • The following PSE PoE parameters are measured:
    • Pairs used
    • Received class
    • PSE type
    • Unloaded voltage(V)
    • Loaded voltage (V) (LRAT-2000 with TruePower™)
    • Unloaded power (W) (LRAT-1000)
    • Loaded power (W) (LRAT-2000 with TruePower™)
Tone Generator IntelliTone™ digital tone: [500 KHz]; analog tones: [400 Hz, 1 KHz]
Dimensions 3.5 in x 7.8 in x 1.9 in (8.9 cm x 19.8 cm x 4.8 cm)
Weight 18 oz (0.5 kg)
Battery Removable, rechargeable lithium-ion battery pack (18.5 Watt-hrs) (included with introductory special)
Battery Life Typical operating life is 6 hours; Typical charge time is 3 hours
External AC Adapter/Charger AC input 90 to 264 Vac 48 to 62 Hz input power DC output 15 Vdc at 1.2 amps
Display 2.8 in color LCD (320 x 240 pixels)
Keypad 12-key elastomeric
LEDs 2 LEDs (Link and Receive/Transmit indicators)
Host Interface USB 5-pin mini-B
LinkRunner Manager Software
Supported Operating Systems Windows® Vista, Windows® XP, Windows® 7, Windows® 8
Processor 400 MHz Pentium processor or equivalent (minimum); 1 GHz Pentium processor or equivalent (recommended)
RAM 96 MB (minimum); 256 MB (recommended)
Hard Disk Up to 500 MB of available space may be required
Display 1024 x 768 high color, 32-bit (recommended)

*IntelliTone is a registered trademark of Fluke Corporation.




Title/Description Download  
Handheld Network Test Solutions
83.01 KB

Data Sheets

Title/Description Download  
LinkRunner AT Network Auto-Tester Datasheet


Title/Description Download  
LinkRunner AT 1000/2000 Network Auto-Tester Users Manual
LinkRunner AT 1000/2000 Network Auto-Tester Users Manual
813.04 KB
LinkRunner AT Quick Start Guide
2.2 MB

White Papers

Title/Description Download  
Lifehacks For Network Technicians
Learn how to efficiently troubleshoot problem-strewn networks with our network tech lifehack guide. From beeping routers to rodent-befriended patch cables, here’s all your troubleshooting solutions in one handy spot.
2.05 MB
Power over Ethernet (PoE) Reference Poster
This 1 page reference flyer that you can print at your own office will serve as a quick guide for powered devices and the 802.3af/at Standards A and B.
657 KB
Quick Tips To Help Network Pros Work Faster And Smarter
Here are 7 ways individuals and organizations can improve how they manage their networks.
Remote Site Troubleshooting
Strategies to consider to help remote-sites become more capable of identifying and resolving problems on their own.
Succeed With PoE
Power over Ethernet (PoE) describes the concept of delivering electrical power along with data on an Ethernet network infrastructure.


Title/Description Download  
Handheld Network Test Flyer
457 KB
LinkRunner AT Network Auto-Tester
The NETSCOUT LinkRunner™ AT Network Auto-Tester provides quick and complete copper and fiber-optic network connectivity testing.
LinkRunner Family Comparison Chart
LinkRunner Network Connectivity Tester Family

Case Studies

Memorial Hermann Health Care System Case Study

Find it. Cure it. Move on.

The healthcare industry is going through tremendous change due to the automation of patient care, causing huge impacts on IT organizations. The entire system managing the interaction between healthcare professionals and patients is dramatically evolving, and will completely impact the way a hospital does business.

Read full story ...


Gold Product Support

Gold Support for your LinkRunner AT Network Auto-Tester allows you to make the most of your purchase while ensuring a higher return on your investment. 3 Year Gold SupportYou will minimize your downtime, receive faster trouble resolution and have total access to all support resources.

What do you get with Gold Support for your LinkRunner AT Network Auto-Tester?

Repairs and loaner equipment - If your LinkRunner AT should fail, we'll deliver a loaner unit via next business day delivery to keep you up and running.  We'll repair your LinkRunner AT and replace defective or faulty accessories at no charge, with first on bench" priority, and return it to you - all shipping paid by NETSCOUT.

Access to live 24 x 7 technical support - Extend the expertise of your staff. Gold Support includes direct, immediate telephone access to our world-class Technical Assistance Center (TAC), direct access only available to Gold Members. Our centers in Seattle, WA and Eindhoven, NL employ a full staff of highly trained technical experts that are on call, including weekends and through the night when most network changes are implemented, to answer complex troubleshooting questions helping you get the most out of your LinkRunner and understand the results you are seeing.

Accessory Replacement - Some accessories are essential to your LinkRunner AT. The normal warranty on accessories is 90 days, but parts and accessories that shipped with your tester will be replaced free of charge with Gold Support once qualified as defective by our technical assistance center.

Software upgrades - Your LinkRunner AT will never be out of date. You'll receive all software upgrades free.

Unlimited access to our Knowledge Base - You'll have an open door to valuable proprietary information we've gathered from helping customers over the years. It also includes helpful technical articles written by our experts.

Member Only promotions - Your membership qualifies you for Members Only promotions and programs. This includes product discounts, access to reconditioned equipment at special prices and other incredible values.

Ensure that you are getting the most out of your LinkRunner AT with Gold Support Services.