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What is Risk?

This video defines risk and outlines ways to manage it including Avoidance, Management, and Transfer. This video is a small portion of the SCOR Exam

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Security Concepts Summary

This brief video summarizes the main points covered in the Security Concepts Tech Session including the basics of Cybersecurity, the CIA triad, and common software/hardware

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The CIA Triad

This brief video explains the CIA Triad (Confidentiality, Integrity, and Availability) which can be used to guide information security policies within an organization. This video

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Why is Security Important?

This short video answers the question, “Why is Security Important?” by providing some real-world examples of security breaches that had huge consequences. This video is

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WLAN Troubleshooting

This short video walks you through WLAN Troubleshooting steps as they pertain to SSID Settings, AAA Trouble, and Data Rates. This video is a small

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Client Troubleshooting

This short video walks you through Client Troubleshooting steps as they pertain to the Initial Connection, Intermittent Connection, and Sustained Connection. This video is a

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AP Failover

This short video walks through the steps involved in AP Failover. This video is a small portion of the Wireless AP Operation Tech Session. Be

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AP Mode Overview

This video provides an overview of AP Modes which provide different services and are largely determined by their design. This video is a small portion

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AP Join Process Overview

This video provides an overview of the AP Join Process including Universal AP Priming, Controller Discovery, Controller Join, and CAPWAP steps. This video is a

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Wireless AP Components

This video breaks down the main components in a Wireless AP Network including the User, AP, Wired Network, and Controller. This video is a small

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Controller Discovery

This short video explains the Controller Discovery process that includes Subnetwork Broadcast, Locally Stored, DHCP with Options, and DNS methods.  This video is a small

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Controller Join

This video explains the AP Join Process as it pertains to Primary, Secondary, Tertiary, Master, and Least Loaded Controllers. This video is a small portion

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Less Common AP Modes

This short video explains some of the less common AP modes including AP Monitor, SE-Connect, OEAP, Sniffer, and Rogue Detector. This video is a small

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Common AP Modes

This short video explains some of the most common AP modes including Local, FlexConnect, Bridge, and Mesh. This video is a small portion of the

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CAM and TCAM Tables

This brief video explain the differences between CAM and TCAM Tables in Layer 2 and Layer 3 switches. This video is a small portion of

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CEF Considerations

This short video outlines 4 things to be mindful of when dealing with Cisco Express Forwarding including things such as Layer 3 Load Balancing and

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Process Switching

This brief video explains some of the key characteristics of the Process Switching method which is the slowest of the three methods. This video is

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The CAM Table

This short video explains how a Content Addressable Memory (CAM) Table stores information for Layer 2 switching. This video is a small portion of the

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Policer Operation

This video explains how a Policer works including Single-Rate Single Bucket and Single-Rate Dual Bucket. This video is a small portion of the Introducing QoS,

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Policing Algorithm

This video introduces the Policing Algorithm and breaks down its’ various components. This video is a small portion of the Introducing QoS, Part 4: Policing

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Shaped Round Robin

This brief video covers Shaped Round Robin (SRR) which helps identify which traffic goes into which queue as well as what percentage of the bandwidth

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Cisco Switching Paths

We all know that Ethernet switches switch traffic. In this 1-hour Tech Session, Jim Goughenour takes a deeper look into what is happening behind the

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Congestion Avoidance

This short video discusses Congestion Avoidance and how it is typically applied as an egress mechanism. This video is a small portion of the Introducing

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Tail Drop

This video explains what Tail Drop is and how it discriminately drops data when a queue is full. This video is a small portion of

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Wireless AP Operation

In this 1-hour Tech Session, Jim Goughenour takes a closer look at how APs and WLCs form relationships and take care of real-time and non-real

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MRA Architecture

This short video walks you through the MRA Architecture its various components. This video is a small portion of the Practical Cisco Expressway Troubleshooting Tech

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Service Discovery Flow

This brief video walks you through the Service Discovery Flow from the initial DNS Lookup to downloading the XML Configuration file. This video is a

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MRA Troubleshooting

This short video breaks down the steps to be taken and the questions to be asked when troubleshooting MRA. This video is a small portion

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Inbound DNS Service Records

This short video breaks down Inbound DNS Service Records including parameters such as Protocol, Service, Transport, Port, and Location. This video is a small portion

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Expressways Overview

This short video provides an overview of Expressways and how they are used to traverse Firewalls. This video is a small portion of the Practical

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B2B Troubleshooting

This video walks you through the steps involved in troubleshooting a B2B network including question such as, “Is the issue isolated to a single cell?”

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B2B Flow

This video outlines the flow of B2B Calling including how Expressways use protocols to open Firewall ports. This video is a small portion of the

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LAN Design Considerations

This video outlines some of the important considerations involved in designing a LAN including Route vs Switch, Full or Collapsed Core, and Size (low, medium,

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