Industrial Port Mirroring: Copy Paths and Capture Limits
Understand how port mirroring copies frames, merges bidirectional traffic and loses capture copies, and why a missing packet does not prove business traffic loss.
2026-10-06
Low Utilization, Yet Packet Loss: Microbursts, Buffers and Output Queues in Industrial Switches
Understand how short traffic bursts fill industrial switch output queues, why average utilization can hide loss, and how buffering, QoS and counter-based tests help diagnosis.
2026-10-05
Serial Device Servers and TCP Streams: Why Reads Split or Combine Messages
Understand UART character timing, serial buffering, TCP byte streams, and stateful message parsing in industrial serial-to-Ethernet systems.
2026-10-04
Industrial Switch VLANs: Access, Trunk, PVID, and 802.1Q Tagging
An engineering guide to VLAN broadcast separation, access and trunk behavior, PVID classification, tagged egress, and acceptance testing.
2026-10-03
Industrial Switch RSTP Rings: BPDUs, Root Election, and Failure Convergence
A practical engineering guide to RSTP root election, BPDU priority vectors, port roles, edge protection, and failure convergence in industrial Ethernet rings.
2026-10-02
Industrial PTP Time Synchronization: Messages, Hardware Timestamps, and Acceptance Testing
PTP exchanges four timestamps to estimate path delay and clock offset, with practical guidance on hardware timestamping, traffic effects, and acceptance testing.
2026-10-01
Industrial Ethernet Auto-Negotiation: Speed, Duplex, and Troubleshooting
A practical explanation of FLP ability exchange, speed and duplex resolution, and the evidence needed to diagnose low speed, frame errors, and link flaps.
2026-09-30
How to Read SFP DDM Values for Optical Link Troubleshooting
A practical guide to Link Fault Pass-through direction, DIP-switch setup, four-fault acceptance testing, alarms, redundancy coordination and rollback.
2026-09-29
How to Configure Industrial Switch Port Mirroring for Packet Troubleshooting
A practical guide to Link Fault Pass-through direction, DIP-switch setup, four-fault acceptance testing, alarms, redundancy coordination and rollback.
2026-09-28
How to Use LFP on an Industrial Fiber Media Converter: Configuration and Disconnection Testing
A practical guide to Link Fault Pass-through direction, DIP-switch setup, four-fault acceptance testing, alarms, redundancy coordination and rollback.
2026-09-27
