Overview of VLANs - Smaller Broadcast domains
The performance of the network can be an important factor in the productivity of an organization and its reputation for broadcasting as planned. One of the technologies that contribute to the excellent performance of the network is the division of large broadcast domains into smaller domains, which is done with VLANs.
The smaller broadcast domains limit the number of devices involved in the broadcasts and allow devices to be separated into functional groups, such as database services for an accounting department and transfer data at high speed for an engineering department.
Introducing VLANs
A VLAN allows a network administrator to create groups of devices connected to the network logically acting as if they were its own separate network, even if they share a common infrastructure with other VLANs. When you configure a VLAN, you can put a name to describe the main function of the users of that VLAN. As another example, all student computers are configured in the VLAN "student." Using VLANs can logically segment switched networks based on project teams, functions or departments. You can also use a VLAN to structure your network geographically to support the growing confidence of business on domestic workers. In the figure, creating a VLAN for students and another for faculty. These VLANs allow network administrators implement access policies and security for particular groups of users. For example, you can allow the faculty, but students get access to server management e-learning to develop online course materials.
A VLAN is a separate IP subnet in a logical manner. VLANs allow multiple IP networks and subnets exist in the same switched network. For computers to communicate on the same VLAN, each must have an IP address and subnet mask consistent with that VLAN. The switch must register VLANs, and each port must be assigned to the appropriate VLAN.
A switch port with a single VLAN configured on it, is called the access port. Remember that if two computers are physically connected on the same switch does not mean that they can communicate. The devices in two separate networks and subnets must communicate via a router (Layer 3) is used or not VLANs.
Later, will be the subject of VLAN configurations
The smaller broadcast domains limit the number of devices involved in the broadcasts and allow devices to be separated into functional groups, such as database services for an accounting department and transfer data at high speed for an engineering department.
Introducing VLANs
A VLAN allows a network administrator to create groups of devices connected to the network logically acting as if they were its own separate network, even if they share a common infrastructure with other VLANs. When you configure a VLAN, you can put a name to describe the main function of the users of that VLAN. As another example, all student computers are configured in the VLAN "student." Using VLANs can logically segment switched networks based on project teams, functions or departments. You can also use a VLAN to structure your network geographically to support the growing confidence of business on domestic workers. In the figure, creating a VLAN for students and another for faculty. These VLANs allow network administrators implement access policies and security for particular groups of users. For example, you can allow the faculty, but students get access to server management e-learning to develop online course materials.
- A VLAN is an independent LAN Network.
- A VLAN allows student and faculty PCs to be separated although they share the same infrastructure.
- A VLAN can be named for easier identification.
A VLAN is a separate IP subnet in a logical manner. VLANs allow multiple IP networks and subnets exist in the same switched network. For computers to communicate on the same VLAN, each must have an IP address and subnet mask consistent with that VLAN. The switch must register VLANs, and each port must be assigned to the appropriate VLAN.
A switch port with a single VLAN configured on it, is called the access port. Remember that if two computers are physically connected on the same switch does not mean that they can communicate. The devices in two separate networks and subnets must communicate via a router (Layer 3) is used or not VLANs.
Later, will be the subject of VLAN configurations
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