Switching - Anything Over IP

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Switching

A collection of 10 posts

Creating Layer 2 and Layer 3 Ether Channels

Creating Layer 2 and Layer 3 Ether Channels

EtherChannel technology allows network administrators to bundle multiple physical links into a single logical link. This bundling provides increased bandwidth and redundancy between network devices. There are two primary types of EtherChannels: Layer 2 (for switched networks) and Layer 3 (for routed networks). Layer 2 EtherChannel Configuration Layer 2 EtherChannels

Inter-VLAN Routing (Router on a Stick)

Inter-VLAN Routing (Router on a Stick)

Virtual LANs (VLANs) are logical groupings of devices within a single broadcast domain, regardless of their physical location. While VLANs provide excellent segmentation and security benefits, devices in different VLANs cannot communicate with each other by default. This is where Inter-VLAN routing comes into play. Inter-VLAN routing enables communication between

VTP (VLAN Trunking Protocol)

VTP (VLAN Trunking Protocol)

VTP (VLAN Trunking Protocol) is a Cisco proprietary protocol that manages the addition, deletion, and renaming of VLANs on a network-wide basis. VTP allows a network manager to configure a switch so that it will propagate VLAN configurations to other switches in the network. VTP reduces administration in a switched

Speed and Duplex configuration

Speed and Duplex configuration

Speed and Duplex Configuration When connecting devices to a switch, the speed and duplex settings are usually auto-negotiated between the devices. However, there are times when you may need to manually configure these settings. Understanding Speed and Duplex Speed refers to how fast data can be transmitted over the link,

Concept and Configuring VLAN'S

Concept and Configuring VLAN'S

Concept of VLANs A VLAN (Virtual Local Area Network) is a logical grouping of devices on a network, regardless of their physical location. VLANs allow network administrators to segment a single physical network into multiple logical networks, providing better security, performance, and management. Benefits of VLANs * Security: Isolates traffic between

Port Security on a Cisco Switch

Port Security on a Cisco Switch

What is Port Security? Port security is a feature available on Cisco Catalyst switches that allows a network administrator to configure individual switch ports to allow only a specific number of source MAC addresses to be learned on that port. This prevents an attacker from connecting a device such as

Configuring a Trunk port on a Cisco Switch

Configuring a Trunk port on a Cisco Switch

What is a Trunk Port? A trunk port is a switch port that can carry traffic from multiple VLANs. Unlike an access port which belongs to only one VLAN, a trunk port uses VLAN tagging to identify which VLAN each frame belongs to as it travels across the trunk link.

Configuring an Access port with PortFast

Configuring an Access port with PortFast

In this tutorial we will look at how to configure an access port on a Cisco switch. Let's look at the topology: Topology: PC-A ---- Fa0/1[Switch]Fa0/2 ---- PC-B Both PC-A and PC-B are connected to switch ports Fa0/1 and Fa0/2 respectively. Both

Configuring an IP address and Default-Gateway on a Cisco Switch

Configuring an IP address and Default-Gateway on a Cisco Switch

Configuring an IP address and default-gateway on a Cisco switch is a foundational skill that allows the switch to be managed remotely and communicate beyond its local network segment. This configuration is essential for network monitoring, troubleshooting, and centralized management. Why Configure an IP Address on a Switch? By default,

Configuring SPAN on a Cisco Switch

Configuring SPAN on a Cisco Switch

SPAN (Switch Port Analyzer) is a feature available on Cisco switches that allows you to mirror traffic from one or more source ports to a destination port for monitoring purposes. This is particularly useful for network troubleshooting, security monitoring, and traffic analysis. Understanding SPAN SPAN works by copying packets from