5

VLAN Management

This chapter describes how to configure virtual LANs.

It includes the following topics:

Creating VLANs

Configuring VLAN Interface Settings

Configuring VLAN Membership

Configuring Port VLAN Membership

Setting the Default VLAN

Voice and Media

Virtual LAN (VLAN) on a Layer 2 switch offers some of the benefits of both bridging and routing. Like a bridge, a VLAN switch forwards traffic based on the Layer 2 header, which is fast. Like a router, it partitions the network into logical segments, providing better administration, security, and management of multicast traffic.

A VLAN is a set of end stations and the switch ports that connect them. You might have many reasons for the logical division, such as department or project membership. The only requirement is that the end station and the port to which it is connected both belong to the same VLAN(s).

Each VLAN in a network has an associated VLAN ID, which appears in the IEEE 802.1Q tag, also known as VLAN tag, in the Layer 2 header of packets transmitted on a VLAN. If an end station omits the tag, or the VLAN portion of the tag, the first switch port to receive the packet either rejects it or inserts a tag matching its default VLAN ID. A port can handle traffic for more than one VLAN, but it can only support the Port VLAN ID (PVID).

The switch is pre-configured with VLAN ID 1 as the Default VLAN. All ports are members of this VLAN, and use its VLAN ID (1) as their PVID.

Cisco Small Business SG200 Series 8-port Smart Switch

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Cisco Systems SLM2008PTNA manual Vlan Management

SLM2008PTNA specifications

Cisco Systems SLM2008PTNA is a robust network switch designed specifically for small to medium-sized businesses. It operates with 8 Fast Ethernet ports, providing advanced features and best-in-class performance to enhance your network infrastructure. This model ensures seamless connectivity for multiple devices, making it an ideal choice for environments requiring reliable network communication.

One of the standout features of the SLM2008PTNA is its Layer 2 switching capabilities. This switch supports auto-negotiation, which allows each port to automatically detect the speed of the connected device and adjust accordingly. This ensures optimal performance and smooth operation across various connected devices. Additionally, the switch supports a non-blocking architecture, ensuring that bandwidth is not shared, which significantly enhances data transmission speed.

Power over Ethernet (PoE) is another key technology incorporated into the Cisco SLM2008PTNA. It simplifies the installation of network devices such as VoIP phones, security cameras, and wireless access points by supplying power through the Ethernet cable. This eliminates the need for separate power sources, reducing installation costs and increasing flexibility in device placement.

Moreover, the SLM2008PTNA comes equipped with advanced security features, such as port security and VLAN support. Port security allows network administrators to restrict access to the network based on MAC addresses, preventing unauthorized access and enhancing network security. The support for Virtual Local Area Networks (VLANs) enables the segmentation of the network into different logical networks, improving traffic management and security within each segment.

The switch is designed for easy management and monitoring, featuring a user-friendly web interface that simplifies configuration. This allows network administrators to quickly set up and manage the device without requiring extensive technical knowledge. Additionally, its compact design makes it suitable for desktop or rack-mount installation, maximizing space efficiency in network environments.

In conclusion, the Cisco Systems SLM2008PTNA is an essential component for small to medium-sized businesses looking to enhance their network performance. With its Layer 2 switching capabilities, Power over Ethernet support, advanced security features, and ease of management, this switch provides a well-rounded solution for modern networking needs, delivering reliable performance and scalability for growth.