RFC8367: Wrongful Termination of IP Packets

In a continuation of the serious consideration our standards bodies place on keeping the Internet relevant to society, today the IETF has issued RFC8267. IP packets are often terminated by network devices. … IP routers and middleboxes, such as firewalls, often terminate packets that do not comply with a predefined policy. Unfortunately, some filtering policies…

6Wind announces support for ARM to add to MIPS and x86

6Wind support for ARM devices as well as traditional x86 and MIPS processors with their press-release (6WIND Announces Arm® Processor Support for High Performance Networking). This expands the reach of their 6WINDGate platform. It supports either ARM-based devices, or network cards that use ARM processors to off-load processing from the main processor. This announcement is…

LoRa extends record distance to 702 km

The Things Network reports that intrepid makers have extended the distance at which a LoRa packet reached one of their gateways. You may remember one of my earlier posts, in which Andreas Spiess managed 212 km in a ground-to-ground connection. Surface-to-surface connections are always going find this distance difficult to beat due to the curvature…

What is MPLS?

Read CoherentLight articles on: MPLS What is MPLS? MPLS is an IP-based Layer 3 networking technology developed in the late 1990s. It replaced Frame-Relay and ATM based Layer 2 networks prevalent at the time. MPLS stands for Multi-Protocol Label Switching, and uses a tag attached to the packet by the network service provider to indicate…

Building Wireshark 2.4.0 for CentOS 7

Some of you might have found the earlier post on Building a Wireshark for CentOS 7. Since then several releases of Wireshark have passed, and now Wireshark has released version 2.4.0 as a stable version. You could skip to the TL;DR version if you just want the application. Don’t forget the release notes! Update: The…

Company Database

CoherentLight references many companies across the various posts on the blog. Here you can find a quick list of those covered, and access information about them, and their stories with a click. A Agilent Alibaba Alcatel parent is Nokia Amazon AMD Appdynamics Appformix Apple Aquantia Arctic Fibre Arista Arm Arris Aruba Aryaka ATT Avago Technologies…