When learning Cisco IOS, students often ask, what happens if there is conflicting information? Cisco IOS order of operations plays an important role in how a router processes traffic and makes choices, especially if there are two possible answers. If you’re simply using the most basic features of the router, chances are good that you’ll […]
Cisco IOS Order of Operations for NAT and QoS Read More »
CAR — or “rate limiting” — is a method for managing unwanted traffic on your network and making sure it doesn’t affect important traffic. Essentially, CAR controls the bandwidth of a certain type of traffic, and an access control list (ACL) defines which traffic it controls. Once you’ve created the ACL, you can set CAR
Committed Access Rate in QoS with Cisco IOS Read More »
In our high level overview of QoS we stated that configuring QoS can be complicated. Cisco developed NBAR as the QoS ‘autopilot’ as one solution to this problem. More recently, Cisco has developed something called AutoQoS, which also configures QoS settings for you. You can use AutoQoS to a)create policies based on real-time traffic flowing
In this How To we will introduce the concepts of Quality of Service or QoS (kwas). Managing QoS is an important process and skill that everyone who runs a network needs to understand. We will introduce you to QoS principles at a high level. You will find details in other How To’s. First, lets understand
QoS Fundamentals in Cisco IOS Read More »
What is NBAR? NBAR is a powerful packet filtering/identification/firewall that you may already have installed on your Cisco router. For a list of what NBAR can detect look here. NBAR is also what we call Cisco’s “autopilot” for QoS. It has been in IOS since ver. 12.0 and has been continually updated with recognition of
NBAR Explained in Cisco IOS Read More »
CellStream, Inc. – Telecom Consulting and Training! 2-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 10 students – Maximum 16 students What Students are saying about this class: “Instructor presents everything very clearly and enthusiastically” “Like how the instructor periodically comes back to the same core
CSI-HO-020-D – Explore Packet Analysis with Wireshark – Voice Edition – 2 Day Read More »
CellStream, Inc. – Telecom Consulting and Training! 2-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 10 students – Maximum 16 students Course Description: Knowing the fundamentals of Quality of Service (QoS) is vital to anyone who is in the
CSI-HO-015 – Hands-On Quality of Service (QoS) Read More »
CellStream, Inc. – Telecom Consulting and Training! 2.5-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 10 students – Maximum 16 students Course Description: Advanced understanding of the TCP/IP protocol suite, and Internet Protocol network operation/behavior skills are vital to IP network
CSI-HO-006 – Hands-On Advanced IP Networks/Protocols Read More »
This article was originally published on May 21st, 1999! I was working several months ago on a network design consulting effort which underscored the main point of this article – that bandwidth is the simplest cure to all networking problems, and in particular to Quality of Service (QoS). I had spent weeks looking at the
Is Bandwidth the QoS Magic Pill? Read More »
This article was originally published on January 21st, 1999! Read this carefully. I’m going to explain to you that there is no Quality of Service (QoS) today with packet-based technologies. “No QoS?” you ask? Nope. Not even with ATM. Not yet. Let’s begin with addressing the two sides of the packet technology debate and technology.
There is No Network Quality of Service! (in 1999) Read More »
