VXLAN: Virtual Extensible LAN

VXLAN (Virtual Extensible LAN) is a network virtualization technology that addresses scalability and segmentation limitations of traditional VLANs in modern data centers and cloud environments. VXLAN encapsulates Layer 2 Ethernet…

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SPAN Configuration

1. Configuring Local SPAN (Cisco Switch) Here’s an example of how a local SPAN can be configured on a Cisco switch: Switch#configure terminalSwitch(config)#monitor session 1 source interface ethernet0/1 - 3Switch(config)#monitor…

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SPAN Theory

In network monitoring, SPAN (Switched Port Analyzer) is a feature used to mirror network traffic from specific ports or VLANs to another port where it can be analyzed. It’s commonly…

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NetFlow theory

NetFlow is a network protocol developed by Cisco for collecting IP traffic information and monitoring network performance. It provides insights into network usage patterns, helping administrators understand bandwidth consumption, identify…

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Syslog configuration

Configuring syslog on Cisco devices is a straightforward process, and it’s essential for monitoring and logging events across your network. Cisco’s syslog implementation lets you send event messages from routers,…

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Syslog

Syslog is a standard protocol used for logging system messages and events, primarily within network and Linux/Unix environments. It allows devices such as routers, switches, servers, and applications to send…

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SD-ACCESS

SD-Access (Software-Defined Access) is a solution by Cisco that simplifies network management through automation and centralized control. It is part of Cisco's broader software-defined networking (SDN) approach, designed to make…

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SD-WAN

SD-WAN (Software-Defined Wide Area Network) is a technology that simplifies the management and operation of a WAN by separating the networking hardware from its control mechanism. Here’s how it works:…

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