Recent posts

MTU Vs MSS - Part Two

May 24, 2013

A little while back I posted an entry called MTU Vs MSS - Part One. At the time the plan was to follow it up with Part Two a short time later, however, here it comes over a year late :) I do apologise for that. What prompted me to get back to writing Part Two was an e-mail from a reader who asked how I came to the conclusion that using the “ip ...

Understanding MQC Series

May 18, 2013

Series Index I am in the process of writing a series of blog posts which will cover: Modular QoS CLI (MQC) Weighted Fair Queue (WFQ) Class-Based Weighed Fair Queuing (CBWFQ) Low Latency Queuing (LLQ) To assist readers in keeping track of these posts, I will update this page each time a new entry is published. Series Entries Here a...

Understanding MQC, Part 3: Output Analysis

May 18, 2013

In my previous post I implemented a basic QoS configuration. In this post I will demonstrate how the “bandwidth” and “priority” commands treat their respective classes, as well as how to interpret the “show policy-map interface” command output. Parent Shaper Below is the output seen when the “show policy-map interface” command is issued. The P...

Understanding MQC, Part 2: Basic Configuration

May 18, 2013

In my previous post I mentioned the six steps which are required in order to implement a QoS solution. In this post I’ll use those steps to create an example implementation. Before I do though, I’ll first cover the “priority” and “bandwidth” commands. Priority & Bandwidth Commands In Step 3 of the process you must assign a a portion of ban...

Understanding MQC, Part 1: The Basics

May 18, 2013

Over the course of my next few blog posts I will be covering Modular QoS CLI (MQC), Weighted Fair Queue (WFQ), Class-Based Weighed Fair Queuing (CBWFQ) and Low Latency Queuing (LLQ). Configuring MQC is not an easy job for those who have never done it before, but thankfully once you understand the basics it’s not very difficult to delve deeper. ...