Port Management

4

 

Configuring PoE

 

 

 

 

 

-Dot3AF and LLDP-MED—The maximum power that can be delivered by the port is limited by the value in LLDP-MED TLVs received from a port device. The value specified by the device should be in the range of 3-16.2 watts. If it is not in this range, then the maximum power is limited by the IEEE 802.3AF class.

-User-Defined and LLDP-MED—The maximum power that can be delivered by the port is limited by the value in LLDP-MED TLVs received from a port device. The value specified by the device should be in the range of 3-16.2 watts. If it is not in this range, then the maximum power is limited by the value that you specify in the Power Allocation field.

Power Allocation—If you configured a user-defined option for Power Limit Type, enter the power in milliwatts to be allocated to the port, between 3000 to 16200 milliwatts.

Detection Type—Select one of the following methods to detect PoE- powered devices connected to the ports.

-802.3af 4point —Resistive signature devices detected with the first algorithm that correspond to the updated IEEE 802.3at-2009 PoE standard (also known as PoE+). It provides up to 51 W of power over a single cable by utilizing all four pairs in the Cat5 cable.

-802.3af 2point—Resistive signature devices detected with the first algorithm that correspond to the original IEEE 802.3af-2003 PoE standard that provides up to 15.4 W of DC power (minimum 44 V DC and 350 mA) to each device.

Reset Mode—Select Enable to enable the switch initialize the ports PoE state machines.

The following statistics also appear:

Power Consumption—Actual power consumption on the port.

Overload Counter—Total number of power overload occurrences.

Short Counter—Total number of power short condition (electrical shorts) on a port.

Denied Counter—Number of times the powered device was denied power.

Absent Counter—Number of times the power supply was stopped to the powered device because the powered device was no longer detected.

Cisco Small Business SG200 Series 8-port Smart Switch

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Cisco Systems SLM2008PTNA manual Port 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.