Cisco C9300L-48UXG-4X-E 48 Ports Catalyst Switch 9300L Refurbished

In the realm of networking technology, Cisco is a name that commands respect and recognition. The Cisco Catalyst 9300 Series is a family of enterprise-grade network switches known for their advanced features and exceptional performance. The 10 Gigabit SFP switches are designed to meet the diverse networking needs of modern businesses, offering a combination of high bandwidth, scalability, and security features. Among the various models within the Catalyst 9300 Series, the C9300L-48UXG-4X-E stands out with its unique set of features, making it an excellent choice for organizations looking to enhance their network infrastructure.

Before we dive into the specifics of the Cisco C9300L-48UXG-4X-E, let's set the stage by discussing the Catalyst 9300 series. This series is known for its high-performance and robust switches designed to meet the evolving demands of modern networks. The Cisco C9300L-48UXG-4X-E Catalyst 9300 Network Essentials Switch, quite a mouthful, is a versatile and powerful network switch manufactured by Cisco Systems. The 48-port switch is part of the Catalyst 9300 series, which is renowned for its excellence in networking technology. The Catalyst 9300 series switches are designed to meet the growing demands of modern networks, offering high performance, reliability, and scalability.

The Cisco C9300L-48UXG-4X-E switch offers a diverse range of ports and connectivity options, making it a versatile solution for various networking needs.

• 48 Ports with UPoE: These 48 ports are equipped with Universal Power over Ethernet (UPoE) technology. UPoE is a significant advancement in Power over Ethernet (PoE) technology, capable of delivering higher power levels to connected devices. This feature is especially useful for devices like IP cameras, access points, and IoT devices.
• 4 x 10 Gigabit SFP+ Ports: The inclusion of four 10 Gigabit Small Form-Factor Pluggable Plus (SFP+) ports opens up high-speed connectivity options. These ports are commonly used for connecting to other network switches, routers, or servers.
• Modular MGig Ports: The Cisco C9300L-48UXG-4X-E offers 12 modular MGig ports, each supporting different speeds - 100Mbps, 1G, 2.5G, 5G, and 10G. This flexibility is essential for accommodating devices with varying bandwidth requirements. MGig technology is especially useful for wireless access points, cameras, and other devices that require higher speeds than traditional 1G connections.
• 36 Ports for Various Speeds: In addition to the MGig ports, this switch includes 36 ports that support 10 Mbps, 100 Mbps, and 1 Gigabit connections. These ports are versatile and can handle a wide range of devices, including older equipment that doesn't require high-speed connectivity.
• 4 x 10 Gigabit Ports: The presence of four 10 Gigabit ports provides high-speed connectivity for demanding applications, such as data center connections or uplink connections to core switches.

One of the standout features of the Cisco C9300L-48UXG-4X-E is its support for Universal Power over Ethernet (UPoE). Let's explore the significance of UPoE in network infrastructure.

• What is UPoE: Universal Power over Ethernet (UPoE) is an extension of Power over Ethernet (PoE) technology, which allows network devices to receive power and data over the same Ethernet cable. UPoE takes this concept to the next level by delivering higher power levels, up to 60 watts per port. This means that the switch can power devices that require more energy, such as video conferencing equipment, LED lighting, and even laptops.
• Benefits of UPoE: UPoE has several advantages, including reduced cabling complexity, as there's no need for separate power cables. This leads to a cleaner and more organized network infrastructure. Moreover, UPoE can support a wide range of devices, from IP phones and cameras to thin clients and access points. This versatility is invaluable in modern networks where diverse devices need to be powered.
• Use Cases: UPoE opens the door to a variety of use cases. For example, in a smart building or office, UPoE can power and connect devices like video surveillance cameras, access control systems, and smart lighting, simplifying installation and management. In healthcare environments, UPoE can support medical devices, and in education, it can power IP phones and security cameras.

Layer 3 (L3) switching is a critical feature in network switches, as it enables routing capabilities in addition to standard switching functions. Traditional Layer 2 switches operate at the data link layer and make forwarding decisions based on MAC (Media Access Control) addresses. Layer 3 switches, on the other hand, can make routing decisions based on IP addresses, allowing them to intelligently direct traffic between different subnets or VLANs (Virtual Local Area Networks).

The "Layer 3 Supported" capability of the Cisco C9300L-48UXG-4X-E is a significant feature for network administrators. Let's explore what Layer 3 means and how it benefits a network.

• Understanding Layer 3: In networking, Layer 3 refers to the network layer in the OSI (Open Systems Interconnection) model. This layer is responsible for routing data between different networks. Devices operating at Layer 3, often referred to as routers, make decisions about where to send data based on IP addresses. This is in contrast to Layer 2 switches, which operate at the data link layer and use MAC addresses.
• Routing Capabilities: By supporting Layer 3, the Cisco C9300L-48UXG-4X-E can act as both a switch and a router. This means it can route traffic between different subnets or VLANs (Virtual Local Area Networks) within your network. Layer 3 routing is essential for creating segmented and efficient network architectures. For example, you can separate guest Wi-Fi traffic from your internal network, enhancing security and performance.
• Benefits of Layer 3 Routing: Layer 3 routing brings several advantages, including improved network performance, better network segmentation for security, and the ability to optimize traffic flow. It's especially valuable in large and complex networks where efficient routing of data is crucial.

The 12 modular MGig (Multigigabit) ports on the Cisco C9300L-48UXG-4X-E are designed to provide flexible connectivity options for modern networks.

• What is MGig: Multigigabit technology, often referred to as MGig, supports a range of speeds beyond the traditional 1 Gigabit per second (Gbps). This is essential for accommodating devices that require higher speeds, such as the latest Wi-Fi access points, cameras, and other IoT devices.
• Speed Options: The Cisco C9300L-48UXG-4X-E's MGig ports offer speed options of 100M, 1G, 2.5G, 5G, and 10 G. This range is crucial for catering to the diverse speed requirements of different devices in modern networks. For example, Wi-Fi 6 access points may require 2.5G or 5G connections to deliver their full performance.
• Use Cases: MGig ports are ideal for environments with high bandwidth demands, such as educational institutions, healthcare facilities, and corporate offices. They can support the growing number of high-speed devices that rely on network infrastructure.

In addition to the modular MGig ports, the Cisco C9300L-48UXG-4X-E includes 36 ports that support different speeds, making it even more versatile.

• Varied Speeds: These 36 ports on the switch are capable of handling different speeds, including 10 Mbps, 100 Mbps, and 1 Gigabit. This range of speeds is useful for accommodating older devices that don't require high-speed connectivity. It ensures backward compatibility with legacy equipment.
• Versatility: The ability to connect devices with various speed requirements makes the Cisco C9300L-48UXG-4X-E a versatile choice for organizations with a mix of older and newer technology. It also simplifies the transition to higher speeds for devices that need it.

The four 10 Gigabit ports on the Cisco C9300L-48UXG-4X-E are designed for high-speed data transfers and demanding applications.

• High-Speed Connectivity: 10 Gigabit Ethernet (10G) is a standard for high-speed network connections. These ports can handle data at a rate of 10 billion bits per second, making them suitable for applications that demand rapid data transfer, such as data center connections and core network uplinks.
• Use Cases: The 10 Gigabit ports on this switch can be used for connecting to other network switches, routers, or servers that require high-speed connections. In data centers, they are invaluable for interconnecting servers and storage devices.

The Cisco C9300L-48UXG-4X-E is part of the Network Essentials portfolio. Let's explore what this means and what benefits it brings to your network.

• Network Essentials: Cisco offers a range of software packages for their switches, including Network Essentials. Network Essentials is designed for organizations that require fundamental network functionality without additional advanced features. It's a cost-effective option for businesses with standard networking needs.
• Benefits of Network Essentials: Network Essentials software provides the essential features required for network operation. This includes basic switching, routing, and security features. It's suitable for businesses that want a reliable and stable network foundation without the complexity and cost associated with advanced software packages.

The inclusion of UPoE in the C9300L-48UXG-4X-E offers several notable advantages:

• Versatility: With the ability to provide more power, the switch can support a wider range of devices, including those with higher power requirements. This flexibility makes it suitable for diverse applications.
• Cost Savings: UPoE reduces the need for separate power sources, power injectors, and additional cabling. This results in cost savings during both installation and maintenance.
• Streamlined Installation: Simplified cabling and power delivery make installations more straightforward and efficient. This is particularly beneficial for large-scale deployments.
• Future-Proofing: As technology advances and devices become more power-hungry, having a switch that supports UPoE ensures your network can accommodate new technologies without the need for infrastructure upgrades.

• Manufacturer: Cisco
• Part Number or SKU# C9300L-48UXG-4X-E
• Product Type: Catalyst Switch
• Enclosure Type: Rack-mountable

• Total Number of Ports: 48 x 10/100/1000 (PoE) + 4 x 10 Gigabit SFP+ (uplink)
• IPv4 Routes: 32,000
• IPv6 Routes: 16,000
• Multicast Scale: 8,000
• QoS Scale Entries: 5,120
• ACL Scale Entries: 5,120
• VLANs Supported: 4,094
• Switched Virtual Interfaces (SVIs): 1,000
• Routing Protocol: OSPF, RIP-1, RIP-2, EIGRP, VRRP, PIM-SM, EIGRP for IPv6, OSPFv3, PIM-SSM, Policy-based Routing (PBR), RIPng, MSTP
• Remote Management Protocol: SNMP 1, RMON 1, RMON 2, SNMP 3, SNMP 2c, CLI, NETCONF, RESTCONF, gRPC, IPv4, IPv6, YANG
• Encryption Algorithm: 128-bit AES, 256-bit AES

• Switching Capacity: 392 Gbps
• Switching Capacity with Stacking: 712 Gbps
• Forwarding Rate: 291.66 Mpps
• Forwarding Rate with Stacking: 529.76 Mpps

• Access Control List (ACL) Support
• Quality of Service (QoS)
• Rapid Per-VLAN Spanning Tree Plus (PVRST+)
• Shaped Round Robin (SRR)
• PXE Support
• Energy-Efficient Ethernet
• Class of Service (CoS)
• Flexible NetFlow (FNF)
• 802.1x Authentication
• 16MB Packet Buffer
• Diffserv Code Point (DSCP) Support
• MACsec Support
• Control Plane Protection (CoPP)
• Blue Beacon LED
• Zero-Touch Provisioning (ZTP)
• Secure Boot
• Protocol Independent Multicast (PIM)
• First Hop Security (FHS)
• PVLAN Support
• Committed Information Rate (CIR)
• CISCO Trust Anchor Module
• CISCO Unified Access Data Plane (UADP) 2.0
• CISCO Stackwise-320 Technology
• IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1d, IEEE 802.1q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.1ae, IEEE 1588v2, IEEE 802.1ba, IEEE 802.3bt, Wi-Fi Certified 6

• 36 x 1000BASE-T RJ-45 (60 W)
• 12 x 1/2.5/5/10GBASE-T RJ-45
• 4 x 10GBASE-X SFP+ Uplink
• 1 x Network Stack Device
• 1 x Management (LAN) RJ-45
• 1 x Console
• 1 x USB 2.0

• Power Device: Internal Hot-Plug Power Supply
• Installed Quantity: 1
• Max Supported Quantity: 2
• Power Redundancy: Optional
• Power Provided: 1,100 Watt
• Voltage Required: AC 120/230 V (50 - 60 Hz)

In summary, the Cisco C9300L-48UXG-4X-E Catalyst 9300 switch is a powerful and versatile networking solution that caters to a wide range of networking needs. Its impressive array of features, including UPoE, Layer 3 routing, modular MGig ports, and 10 Gigabit connections, make it a valuable addition to any network infrastructure. Whether you're building a new network or upgrading an existing one, this switch can provide the performance, flexibility, and reliability you need. As technology continues to evolve, having a network switch like the Cisco C9300L-48UXG-4X-E is essential to ensure your network can adapt to the demands of the future.