Vlan-virtual-lan-1.pdf

VLAN (VIRTUAL LAN) FRANKLIN MIRANDA JR. IS A COMPUTER CONNECTED TO A PRINTER IS CALLED A NETWORK? WHY? THE PHYSICAL NETWORK DESIGN  includes defining the network topology for connecting physical switches and the ESXi hosts, determining switch port settings for VLANs, and designing ro...

VLAN (VIRTUAL LAN) FRANKLIN MIRANDA JR. IS A COMPUTER CONNECTED TO A PRINTER IS CALLED A NETWORK? WHY? THE PHYSICAL NETWORK DESIGN  includes defining the network topology for connecting physical switches and the ESXi hosts, determining switch port settings for VLANs, and designing routing WHAT IS PHYSICAL NETWORK IN NETWORKING?  The physical network consists of the cables (coaxial cable, twisted pair, fiber optic, and telephone lines) that connect the different hardware residing on the network, the adapter used on computers connected to the network (hosts), and any concentrators, repeaters, routers, or bridges used in the network. THE CORE LAYER  also known as the network backbone, is the central part of a network's architecture that's responsible for transmitting data between different parts of the network quickly and efficiently.  It's usually made up of high-speed devices like routers and switches. The core layer's main goal is to facilitate fast communication between different parts of the network without complex processing or decision-making. THE DISTRIBUTION LAYER  is a part of a hierarchical network model that acts as a boundary between the access and core layers of a network. It's responsible for routing and filtering data within the network, and for providing policy-based connectivity. The distribution layer also aggregates traffic from the access layers and distributes it throughout the rest of the network. THE ACCESS LAYER  in a physical network design is responsible for transmitting raw data bits across the network and how hardware accesses the transmission media. It's the lowest layer of the TCP/IP model and combines Layer 1 (Physical) and Layer 2 (Data Link) of the OSI model. NETWORK FLOW DATA  essentially records of device communications, includes information like IP addresses, ports, protocols, and timestamps.  This data, typically collected by network devices, is fundamental in understanding digital interactions within an organization. VLAN STANDS FOR VIRTUAL LOCAL AREA NETWORK  which is a logical network created within a larger physical network. VLANs allow users to segment a network into smaller, virtual sub-networks, which can be used to improve network performance and isolate traffic. VLANS  are a fundamental component of network design and can help optimize network segmentation and security. They can also simplify the task of dividing and grouping a network for IT network administrators based on their security and functional requirements. This can be done without having to modify the existing IT network infrastructure or plug and unplug physical LAN cables. VLANS  can help control broadcast traffic, ease administration, and tighten security. However, communication between two different VLANs is only possible through a router that has been connected to both VLANs. WHAT IS VLAN AND WHY IS IT USED?  VLAN stands for Virtual LAN. A VLAN is a way of logically separating a group of computers into a separate network. This means they will only communicate with each other and not with any other devices connected to the same physical network. It's like having a private wireless network at home. WHAT IS VLAN IN A ROUTER?  A VLAN (Virtual Local Area Network) is a logical network that is created within a larger physical network. VLANs allow you to segment a network into smaller, virtual sub-networks, which can be used to isolate traffic and improve network performance. WHAT IS AN EXAMPLE OF VLAN? VLANs break up broadcast domains, reducing the number of other hosts from which any given device sees broadcasts. For example, if all desktop voice over IP phones are on one VLAN and all workstations are on another, phones won't see any workstation-generated broadcast traffic and vice versa. WHAT ARE THE THREE TYPES OF VLANS?  Data VLAN - A data VLAN is used to separate and prioritize data traffic within a network.  Voice VLAN - A voice VLAN is designed to handle voice over IP (VoIP) traffic, which includes voice calls and other real-time communication services.  Static VLAN - Common type of VLAN, manually assign switch ports HOW TO CREATE A VLAN STEP BY STEP?  Brainstorm VLAN Groupings.  Prepare Unique VLAN IDs.  Create a Logical Network Diagram or Map.  Optional: Purchase Additional Equipment.  Connect Network Devices to Appropriate Switch Ports.  Configure Switch Ports.  Set up VLAN Specifications via Network Switch Settings.  Assign Switch Ports to VLANs. CONFIGURATION  VLAN configurations partition one network into many virtual networks that can serve various use cases and meet many requirements. However, this also requires communication among VLANs which in turn must travel through a router. 802.1Q VLAN CONFIGURATION  also known as Dot1q, is a networking standard that supports virtual local area networks (VLANs) on an IEEE 802.3 Ethernet network. It defines a system of VLAN tagging for Ethernet frames and the procedures for bridges and switches to handle those frames. HERE ARE SOME STEPS FOR CONFIGURING 802.1Q VLAN ON A TP-LINK SWITCH:  Select L2 Features > VLAN > 802.1Q VLAN > VLAN Config  Create a VLAN by entering a VLAN ID and description. The ID can be between 2 and 4094, and the description can be up to 16 characters.  Choose the untagged and tagged ports to add to the VLAN based on the network topology. The selected ports will forward untagged and tagged packets in the target VLAN.  Click Apply STATIC VLANS  A switch designates a group of ports as belonging to the same broadcast domain, or VLAN...  This means that any ports carrying traffic for a specific subnet address are in the same VLAN. When a device connects to a port, it automatically assumes the VLAN of that port.  Static VLANs are often used to reduce broadcast traffic and increase security. They are also easy to configure and monitor, and are more secure than traditional switches. DYNAMIC VLANS  A switch temporarily creates VLAN membership on a port to link to another port, either in the same VLAN on another device or in a different VLAN.  Dynamic VLANs can be used to segment users into different VLANs based on the resources they can access.  For example, network administrators can assign different users to different VLANs based on the password they provide when connecting to the SSID. Dynamic VLANs can also be used to fragment a network into tiered sections based on resource authorization. STATIC VLAN VS.. DYNAMIC VLAN  The main difference between static VLANs and dynamic VLANs is that static VLANs are configured manually by assigning ports to a VLAN, while dynamic VLANs use a database that stores a VLAN / MAC mapping to determine the VLAN to which a particular host is connected. SUBNETTING A subnet is a logical subdivision of an IP network. The process of dividing a network into two or more networks is called subnetting TABLE TABLE 2