There are a few network situations where QoS appears to be set up correctly, and yet packet loss still occurs. These situations can be mystifying for those who don't understand the behavior of the ...

Also called "first-come, first served" (FCFS) queuing, FIFO is the simplest queuing method. Packets are placed into a single queue and serviced in the order they were received. Each packet is assigned ...

Network geeks among you may remember my article, “Linux Socket Filter: Sniffing Bytes over the Network”, in the June 2001 issue of LJ, regarding the use of the packet filter built inside the Linux ...

In our previous blog entry, I challenged you with five QoS review questions. Hope you had fun with those. Here are the answers and explanations: Identify two statements which are correct regarding ...

Active queue management (AQM) and congestion control form the backbone of modern network performance optimisation. By dynamically regulating queue lengths in routers, these techniques pre-empt ...

Network traffic in both enterprise and carrier networks continues to rise, driving the bandwidth requirements and line rates to 10 Gbps today, and expecting to grow to 40 Gbps and beyond in a few ...