NetAlly has launched the LinkRunner 100G, the industry’s smallest and lightest handheld tester for installing, verifying and maintaining ethernet networks from 25G to 100G.
As high-speed ethernet becomes increasingly common in data centres and enterprise networks, engineers face a new troubleshooting challenge: a link can appear healthy while physical-layer problems are already affecting performance.
When 'link up' isn’t good enough
At 25G per lane, a marginal connector, fibre issue or configuration mismatch can cause degradation or prevent a link from establishing, while switch counters continue to report a healthy connection.
Forward error correction (FEC) can further mask physical-layer problems.
LinkRunner 100G provides the visibility network engineers need to find the problem, prove performance and resolve issues faster.
Physical-layer testing in your hand
LinkRunner 100G puts capabilities that previously required a cart of modular test equipment directly into the hands of the network engineer responding to the ticket.
Network engineers can:
- Prove performance: Validate true end-to-end layer three capacity and transmission quality with measurable, repeatable results.
- Validate fibre and optics: Test production QSFP28 optics and transceivers before deployment and reduce unexpected failures.
- Identify configuration issues: Automatically validate speed, FEC settings, module type and interface configuration.
- Throughput test at line rate: Quickly verify switch ports, configurations, link speeds and key network services.
- Document every result: Generate professional reports covering optical configuration, performance metrics and link validation.
Built for modern data centre infrastructure
QSFP28 Insights automatically detects and validates:
- 25G, 40G, 50G and 100G optics
- FEC and interface settings
- Single-mode and multimode fibre
- Trunk connections
- LC breakouts
- MTP/MPO links
This provides engineers with real-world validation using the same optics and transceivers deployed in production.
Evidence, not assumptions
The launch comes as network teams face increasing pressure to deliver reliable high-speed connectivity while reducing troubleshooting time and avoiding costly outages.
At 25G and 100G, traditional “swap and see” troubleshooting is no longer enough. Network engineers need physical-layer visibility and measurable evidence to understand what is really happening on the link.
Prove your network delivers the performance you’re paying for.
Validate fibre and optics before they become a 2am call.
Get evidence, not assumptions, every time you test!
For more information about the NetAlly LinkRunner 100G, see the White Paper or visit www.iotxperts.co.za.

