WS-C2912-XL-EN Cisco 12 Ports Ethernet Switch Refurbished

In the world of networking, switches are essential devices that enable computers, printers, servers, and other devices to communicate within a local area network (LAN). One such switch is the Cisco WS-C2912-XL-EN Catalyst, which provides fast Ethernet connectivity for small to medium-sized enterprises. In this detailed guide, we'll explore the features, specifications, and potential applications of the Cisco WS-C2912-XL-EN 12 Port Switch in simple language for better understanding.

Before diving into the specifics of the Cisco WS-C2912-XL-EN switch, let's first understand what an Ethernet switch is and how it functions.

An Ethernet switch is a networking device that connects multiple devices within a LAN. It operates at the data link layer (Layer 2) of the OSI model and uses MAC addresses to forward data to the appropriate destination. Unlike hubs, which broadcast data to all connected devices, switches create dedicated communication channels between devices, improving network efficiency and security.

The Cisco WS-C2912-XL-EN is a member of the Cisco Catalyst series, renowned for its reliability, performance, and scalability. This particular switch is equipped with 12 ports and supports fast Ethernet connectivity, making it suitable for small and medium-sized enterprises (SMEs) seeking to establish or expand their network infrastructure. The "EN" in the model number indicates that it is the Enterprise Edition of the switch, offering advanced features and capabilities.

• 12 Ports: The Cisco WS-C2912-XL-EN switch comes with 12 ports, allowing for the connection of multiple devices such as computers, printers, and servers.
• Layer 2 Switching: Operating at Layer 2 of the OSI model, this switch provides efficient and reliable data forwarding based on MAC addresses.
• 10/100Base-TX Fast Ethernet: The switch supports both 10 Mbps and 100 Mbps Ethernet speeds, offering flexibility in network connectivity.
• Enterprise Edition: As part of the Enterprise Edition, the Cisco WS-C2912-XL-EN switch includes advanced features and functionalities suitable for enterprise environments.

• Scalability: With 12 ports, the Cisco WS-C2912-XL-EN switch can accommodate the growth of a network as the organization expands, providing scalability and flexibility.
• Reliability: Cisco Catalyst switches are known for their reliability and robustness, ensuring uninterrupted network connectivity and minimal downtime.
• Performance: The fast Ethernet capabilities of the switch enable high-speed data transfer, facilitating efficient communication between devices within the network.
• Ease of Management: The Cisco WS-C2912-XL-EN switch is equipped with management features that simplify network administration, such as VLAN support, Quality of Service (QoS), and port mirroring.

• Ports: 12 x 10/100Base-TX RJ-45 ports
• Switching Capacity: 3.6 Gbps
• Forwarding Rate: 2.7 Mpps (million packets per second)
• MAC Address Table Size: 8K entries
• Form Factor: Rack-mountable, 1U height

• Small and Medium-Sized Enterprises (SMEs): The Cisco WS-C2912-XL-EN switch is ideal for SMEs looking to establish or expand their network infrastructure with reliable and scalable Ethernet connectivity.
• Office Networks: In office environments, the switch can connect computers, printers, and other devices to facilitate communication and collaboration among employees.
• Education Institutions: Schools and colleges can use the Cisco WS-C2912-XL-EN switch to build LANs for classrooms, labs, and administrative offices, supporting various educational activities and services.
• Retail Stores: Retail businesses can utilize the switch to connect POS systems, inventory management devices, and security cameras, enabling efficient operations and customer service.

The WS-C2912-XL-EN Cisco 12 Ports Ethernet Switch has advanced security features that help to protect the network from unauthorized access and attacks. These features include:

• Access Control Lists (ACLs): This feature allows administrators to specify which traffic is allowed or denied on the network based on the source and destination IP addresses, protocols, and ports.
• Port Security: This feature allows administrators to limit the number of MAC addresses that can be learned on a specific port and to specify which MAC addresses are allowed. This helps to prevent MAC address spoofing and unauthorized access to the network.
• VLAN access control: This feature allows administrators to create Virtual LANs (VLANs) and assign ports to specific VLANs to control access to network resources.
• IEEE 802.1x: This feature allows administrators to authenticate users and devices before they are granted access to the network.
• SSH and SSL: The switch supports SSH and SSL protocols to encrypt the communication between the switch and the management station.
• IP Source Guard: This feature prevents unauthorized IP address spoofing by binding an IP address to a specific MAC address and port.
• DHCP snooping: This feature helps to prevent rogue DHCP servers from providing incorrect IP addresses to clients on the network.
• Private VLAN: This feature allows administrators to create isolated communities within a VLAN to enhance security.
• Storm Control: This feature helps to protect the network from broadcast and multicast storms.
• IP access list logging: This feature allows administrators to log all access list violations.
• RADIUS and TACACS+: The switch supports the RADIUS and TACACS+ protocols to authenticate users and devices before they are granted access to the network.
• Network Admission Control: This feature allows administrators to authenticate, authorize, and quarantine users and devices before they are granted access to the network.

These are some of the advanced security features that the WS-C2912-XL-EN Cisco 12 Ports Ethernet Switch offers to help keep your network secure.

The WS-C2912-XL-EN Cisco 12 Ports Ethernet Switch is a managed switch that provides advanced security features to protect your network from potential threats. These features include Access Control Lists (ACLs), which allow you to control access to specific network resources based on IP addresses or other criteria; Virtual Private Network (VPN) support, which allows for secure communication between remote networks; and Port Security, which limits the number of MAC addresses that can be learned on a port to prevent unauthorized access.

In terms of high availability and redundancy, the WS-C2912-XL-EN supports many features to ensure that your network remains up and running even in the event of a failure. These include Link Aggregation Control Protocol (LACP) and Hot Standby Router Protocol (HSRP), which allow for automatic failover in case of a link or device failure, and Spanning Tree Protocol (STP), which prevents loops in the network and ensures that there is always a single active path to a destination. The switch also supports multiple power supply and fan options to provide redundancy and increase availability.

The WS-C2912-XL-EN Cisco 12 Ports Ethernet Switch offers a range of features to support network scalability and flexibility. Some of these include:

• VLAN support: The switch supports the use of virtual local area networks (VLANs), which allow for the segmentation of a network into smaller, more manageable sub-networks. This can help improve network security and performance.
• Link Aggregation Control Protocol (LACP): LACP allows for the grouping of multiple physical ports together to form a single logical link, increasing bandwidth and providing redundancy.
• Quality of Service (QoS): The switch supports QoS, which allows for prioritization of different types of traffic based on their importance. This can help ensure that critical applications and services receive the bandwidth they need, even during periods of high network utilization.
• FlexStack: FlexStack is a feature that allows for the stacking of multiple switches together to form a single, logical device. This can simplify management and increase the overall number of ports available.

These capabilities help to ensure that the network can adapt to changing needs and continue to support the growing number of devices and applications that rely on it.

• Manufacturer: Cisco
• Model Number or SKU # WS-C2912-XL-EN
• Product Line: Catalyst
• Product Series: 2900
• Product Model: 2912-XL
• Product Name: Catalyst 2912-XL Ethernet Switch
• Product Type: Ethernet Switch

• Total Number of Network Ports: 12
• Number of Network (RJ-45) Ports: 12
• Port/Expansion Slot Details: 12 x Fast Ethernet Network

• Ethernet Technology: Fast Ethernet
• Network Technology: 10/100Base-TX

• Layer Supported: 2

• Manageable: Yes

• Input Voltage: 110 V AC
• Input Voltage: 220 V AC
• Power Source: Power Supply
• Redundant Power: Supply Yes

In summary, the Cisco WS-C2912-XL-EN Catalyst switch offers a reliable, scalable, and cost-effective solution for building LANs in enterprise environments. With its 12 ports, Layer 2 functionality, and support for 10/100Base-TX Fast Ethernet, this switch provides fast and reliable connectivity for connected devices. Whether deployed in office networks, small businesses, education institutions, or retail stores, the WS-C2912-XL-EN switch delivers the performance and reliability required to meet the networking needs of modern organizations.