Tech Corner / Cisco Switches

4 Steps of Private VLAN Configuration (Back to Basics)

4 Steps of Private VLAN Configuration (Back to Basics) - An Essential Overview Guide

Sometimes network and business requirements in organizations demand Layer 2 traffic isolation between devices connected to the same physical switch while being part of the same Layer 3 segment or VLAN. A solution is to provide one VLAN per device (per customer in service providers). H …

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5 Basic Commands for Cisco Switches You Need to Know

Have you recently tried configuring a Cisco switch, only to realize you've forgotten the commands? You're not alone; we all need a refresher once in a while -- so, here's your refresher course. Whether you are brand new to Cisco networking or a veteran with decades of experience, it's …

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Must-Have Port Security: Simple but Efficient Layer 2 Protection

Must-Have Port Security: Simple but Efficient Layer 2 Protection

A switch port is the main entrance into a network and should have adequate security to combat potential threats. A large network could have thousands of access ports distributed across a campus or building. Are all your ports, used and unused, protected from unauthorized access?

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A Complete Guide To Improving Redundancy with EtherChannel Technology

A Complete Guide To Improving Redundancy with EtherChannel Technology

"Big data" is a buzzword you may have encountered before in recent years. It is a term that describes large, hard-to-manage volumes of data (structured and unstructured) that can be analyzed for insights that improve business decisions. The rapid progress of bandwidth-intensive applic …

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The Complete Solutions Guide to a Redundant Switched Topology – Pt. 2

The Complete Solutions Guide to a Redundant Switched Topology – Pt. 2

We've all experienced the frustrations of a popular application, such as Slack, Microsoft Teams, or other SaaS products going down due to network issues. Many of these applications and services have stringent network requirements, so their networks must support uninterrupted communica …

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The Complete Solutions Guide to a Redundant Switched Topology – Pt. 1

The Complete Solutions Guide to a Redundant Switched Topology – Pt. 1

Network redundancy provides multiple paths for traffic so that network communications remain functional even during a failure. A network failure can occur due to a faulty device/link or a network attack (e.g., DDoS, man-in-the-middle attacks, ARP spoofing, etc.). Relying on just one d …

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Best Practices for Switch Stacking Configuration

Switch Stacking Configuration Best Practices

What Is Switch Stacking? Switch Stacking physically connects multiple switches into one logical switch. The switches will appear as one and interact together as if they were one large switch. Traditionally, when additional ports were needed, you would have to upgrade to a larger switc …

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How to Configure a Cisco Virtual Switching System

PivIT  Configuring a Cisco Virtual Switching System

What Is a Virtual Switching System? A Virtual Switching System (VSS) is a Cisco proprietary technology that interconnects two physical switches and logically makes them one switch with interconnected control and management planes. This architecture simplifies the design process and re …

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