Cisco SG550XG-48T-K9-NA 48 Ports Managed Switch Small Refurbished

In the dynamic landscape of networking solutions, businesses, especially small enterprises, require reliable and efficient switches to ensure seamless connectivity. Cisco, a renowned player in the networking industry, offers the SG550XG-48T-K9-NA, a 48-port managed small business switch. In this comprehensive review, we delve into the features, benefits, and applications of this switch, aiming to provide a clear understanding for both IT professionals and businesses considering an upgrade or expansion of their network infrastructure.

The Cisco SG550XG-48T-K9-NA is equipped with 48 ports Switch, offering a robust foundation for connecting various devices within a small business network. This high port count ensures that businesses can effortlessly expand their network without compromising on performance.

Unlike unmanaged switches, the SG550XG-48T-K9-NA is a managed switch, providing administrators with greater control over network traffic. This enables the implementation of advanced features such as VLANs, Quality of Service (QoS), and security protocols, contributing to a more efficient and secure network environment.

Supporting 10 Gigabit Ethernet speeds, this switch facilitates rapid data transfer within the network. This is particularly beneficial for businesses with high data traffic requirements, ensuring smooth operation and reduced latency.

The switch features Layer 3 routing capabilities, allowing it to route traffic between different subnets. This enhances network segmentation and facilitates efficient data traffic management, improving overall network performance.

Cisco has incorporated energy-efficient features into the SG550XG-48T-K9-NA, promoting sustainability and cost-effectiveness. With technologies such as Energy Efficient Ethernet (EEE) and intelligent power management, the switch optimizes power consumption without compromising performance.

The SG550XG-48T-K9-NA comes with 48 ports, providing flexibility for connecting a variety of devices such as computers, printers, servers, and other network peripherals. Additionally, the switch includes four 10 Gigabit Ethernet uplink ports for high-speed connectivity to other network devices.

Boasting a substantial switching capacity, this Cisco switch ensures efficient data flow within the network. The switching capacity is a crucial factor for handling simultaneous data transmissions, making the SG550XG-48T-K9-NA suitable for demanding networking environments.

Some variants of the SG550XG-48T-K9-NA offer Power over Ethernet (PoE) support, allowing the switch to deliver power to connected devices such as IP cameras, phones, and access points through the Ethernet cable. This eliminates the need for separate power sources, simplifying installation and reducing cable clutter.

The switch is designed for easy integration into existing network setups, featuring a compact form factor. It is rack-mountable, saving valuable office space and providing a clean and organized networking infrastructure.

Scalability

One of the primary advantages of the Cisco SG550XG-48T-K9-NA is its scalability. With 48 ports and support for 10 Gigabit Ethernet speeds, the switch can easily accommodate the growing connectivity needs of small businesses. This scalability ensures that the network infrastructure can evolve alongside the business without requiring significant overhauls.

Enhanced Network Control

As a managed switch, the SG550XG-48T-K9-NA offers administrators granular control over the network. This includes the ability to create and manage VLANs for improved network segmentation, implement Quality of Service (QoS) policies for prioritizing critical traffic, and configure security features to protect against unauthorized access.

Improved Performance

Leveraging 10 Gigabit Ethernet speeds and Layer 3 routing capabilities, the switch contributes to improved network performance. Businesses can experience faster data transfer rates, reduced latency, and efficient routing of traffic between different subnets, enhancing overall network responsiveness.

Reliability and Durability

Cisco is renowned for producing reliable and durable networking equipment, and the SG550XG-48T-K9-NA is no exception. The switch is built to withstand the demands of continuous operation, providing small businesses with a robust and dependable networking solution.

Small Business Networks

The Cisco SG550XG-48T-K9-NA is an ideal choice for small businesses looking to establish or upgrade their network infrastructure. Its combination of port density, 10 Gigabit Ethernet speeds, and managed switch capabilities makes it suitable for handling the networking requirements of small offices, retail establishments, and similar environments.

High-Traffic Environments

Businesses with high data traffic demands, such as those involved in media production, data analytics, or large-scale file transfers, can benefit from the switch's 10 Gigabit Ethernet speeds. This ensures that data can be transferred quickly and efficiently, preventing bottlenecks in the network.

IP Surveillance Systems

The PoE support in certain variants of the SG550XG-48T-K9-NA makes it an excellent choice for deploying IP surveillance systems. The switch can power connected IP cameras over the Ethernet cable, simplifying installation and reducing the need for additional power sources.

Access Control Lists (ACLs)

ACLs enable administrators to control traffic flow within the network by specifying rules for permitting or denying data packets based on criteria such as source and destination IP addresses, ports, and protocols.

Secure Shell (SSH) and SNMPv3 Support

The switch supports secure management protocols like SSH for encrypted remote access and SNMPv3 for secure monitoring and management. These features enhance the overall security posture of the network.

Port Security

Port security features allow administrators to restrict access to network resources by binding specific MAC addresses to individual switch ports. This prevents unauthorized devices from connecting to the network.

• Manufacturer: Cisco
• Model Number or SKU# SG550XG-48T-K9-NA
• Product Series: 550XG
• Product Type: Ethernet Switch

• Total Number of Network Ports: 48
• Stack Port: Yes
• Port/Expansion Slot Details: 48 x 10 Gigabit Ethernet Network

• Routing Protocol: RIP, IGMPv2, IGMP, VRRP, IGMPv3, static IPv4 routing, static IPv6 routing, MLDv2, MLD, CIDR
• Remote Management Protocol: SNMP 1, RMON, SNMP 3, SNMP 2c, HTTP, HTTPS, TFTP, SSH, CLI, SCP
• Encryption Algorithm: MD5, SSL
• Authentication Method: Secure Shell (SSH), RADIUS, TACACS+

• Media Type Supported: Twisted Pair
• Ethernet Technology: 10 Gigabit Ethernet
• Network Technology: 10GBase-T

• Processor: X ARM - 800 MHz
• RAM: 512 MB
• Flash Memory: 256 MB
• Status Indicators: Port transmission speed, system, RPS (Redundant Power Supply), link/activity, fan

• Interfaces:
• 48 x 10GBase-T RJ-45
• 2 x 10GBase-X SFP+
• 1 x management (Gigabit LAN) RJ-45
• 1 x console RJ-45
• 1 x USB Type A

Features

• Flow control, DHCP support, BOOTP support, ARP support, IGMP snooping, Syslog support, DoS attack prevention, DiffServ support, Weighted Round Robin (WRR) queuing, Broadcast Storm Control, Multicast Storm Control, Unicast Storm Control, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP) support, Virtual Route Redundancy Protocol (VRRP) support, Multiple Spanning Tree Protocol (MSTP) support, DHCP snooping, Access Control List (ACL) support, Quality of Service (QoS), DHCP server, Dynamic ARP Inspection (DAI), STP Root Guard, Uni-Directional Link Detection (UDLD), LLDP support, DHCP relay, Link Aggregation Control Protocol (LACP), Port Security, IP-MAC binding, DHCP client, Energy Efficient Ethernet, Management Information Base (MIB), Multicast VLAN Registration (MVR), Generic Attribute Registration Protocol (GARP), Generic VLAN Registration Protocol (GVRP), Denial of Service (DoS), 802.1x authentication, Type of Service (ToS), DiffServ Code Point (DSCP) support, IP source guard, Bridge protocol data unit (BPDU), Internet Control Message Protocol (ICMP), 32MB packet buffer

Compliant Standards

• 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 802.1ab (LLDP), IEEE 802.3az

Network & Communication

• Layer Supported: 3

Management & Protocols

• Manageable: Yes

Power Description

• Power Device: Internal power supply
• Voltage Required: AC 120/230 V (50/60 Hz)
• Power Consumption Operational: 255.8 Watt
• Power Source: Power Supply

Environmental Parameters

• Min Operating Temperature: 32 °F
• Max Operating Temperature: 122 °F
• Humidity Range Operating: 10 - 90% (non-condensing)
• Min Storage Temperature: -4 °F
• Max Storage Temperature: 158 °F

Outline, the Cisco SG550XG-48T-K9-NA stands out as a robust and feature-rich solution for small businesses seeking a reliable and scalable networking switch. With 48 ports, 10 Gigabit Ethernet speeds, and advanced management capabilities, it addresses the diverse needs of modern networks. Whether used in small office environments, high-traffic scenarios, or for deploying IP surveillance systems, the SG550XG-48T-K9-NA offers a versatile and efficient networking solution. Its emphasis on security, energy efficiency, and durability further solidifies its position as a valuable asset for small businesses looking to establish a resilient network infrastructure.