CBS350-48P-4X-NA Cisco 48 Ports Ethernet Switch

Cisco CBS350-48P-4X-NA Managed Switch  

The Cisco CBS350-48P-4X-NA is a high-performance Business 350 Series managed switch designed to deliver robust network performance, scalability, and advanced security features. Ideal for medium to large enterprises, this switch provides extensive PoE capabilities, high switching capacity, and comprehensive management options to support modern business networks.

General Device Information

• Manufacturer: Cisco
• Part Number: CBS350-48P-4X-NA
• Device Type: Managed Switch

Switch Performance and Capacity

• Power over Ethernet (PoE) Budget: 370 W
• Switching Capacity: 176 Gbps
• Forwarding Rate: 130.94 Mpps (64-byte packets)
• Buffer Size: 3 MB
• MAC Address Table: 16,000 entries
• Jumbo Frame Support: Up to 2KB

Port

• 48 x 10/100/1000Base-T RJ-45 PoE+ ports
• 4 x 10GBASE-X SFP+ uplink ports
• 1 x Console (USB) Type B
• 1 x USB Type A
• 1 x Console RJ-45 port

Network Segmentation and Aggregation

• Number of Link Aggregation Groups: 8
• VLAN Support: Up to 4094 VLANs

Routing and Protocol Support

• Routing Protocols: IGMP, Policy-Based Routing (PBR), CIDR
• Remote Management Protocols: SNMP v1/v2c/v3, RMON, SSH, SSH-2, ICMP
• Authentication Methods: SSH, RADIUS, TACACS+
• Encryption: SSL for secure management

Processor and Memory Configuration

• Processor: X ARM 800 MHz
• RAM: 512 MB
• Flash Memory: 256 MB

Power and Energy Requirements

• Power Source: Internal AC power supply
• Voltage Requirement: AC 120/230 V, 50/60 Hz
• PoE Power Budget: 370 W for connected devices

Security and Protection

• DoS attack protection and advanced access control lists (ACLs)
• Dynamic ARP Inspection (DAI) and IP Source Guard
• Authentication via RADIUS, TACACS+, and SSH

VLAN, QoS, and Network Optimization

• Support for DHCP, ARP, and VLAN segmentation
• Quality of Service (QoS) for prioritizing critical traffic
• Storm Control to mitigate broadcast, multicast, and unicast flooding
• Voice VLAN and LLDP-MED support for VoIP optimization

Spanning Tree Protocols

• STP (Spanning Tree Protocol)
• MSTP (Multiple Spanning Tree Protocol)
• PVST+ (Per VLAN Spanning Tree Plus)

IEEE Standards Supported

• IEEE 802.3, 802.3u, 802.3z, 802.3ab
• IEEE 802.1d, 802.1q, 802.1p, 802.1w
• IEEE 802.1s, 802.1x, 802.1AB (LLDP)
• IEEE 802.3af/at (PoE/PoE+), 802.3x (Flow Control)
• IEEE 802.3ad (LACP), 802.3ae, 802.3an
• Energy Efficient Ethernet: IEEE 802.3az

Cisco CBS350-48P-4X-NA Business 350 Series

The Cisco CBS350-48P-4X-NA is part of the Business 350 Series, designed to deliver advanced Layer 3 managed switching capabilities for small and medium-sized enterprises. Engineered to provide high performance, scalability, and comprehensive security, the CBS350-48P-4X-NA supports a wide range of network demands including high-density connectivity, Power over Ethernet (PoE), and enhanced traffic management. This switch ensures seamless integration into business environments requiring reliable network infrastructure, optimized bandwidth, and advanced network control.

High-Performance Switching Capabilities

Equipped with 48 Gigabit Ethernet ports and four 10 Gigabit SFP+ uplink ports, the CBS350-48P-4X-NA offers substantial throughput for high-traffic networks. Each port supports intelligent Layer 3 switching functions, allowing for efficient routing, VLAN segmentation, and network isolation. The switch is designed to handle data-intensive applications and supports multi-gigabit devices, delivering consistent and low-latency connectivity across the network. With its robust forwarding rate and switching capacity, the CBS350-48P-4X-NA ensures uninterrupted performance for mission-critical business applications.

Advanced Layer 3 Routing Features

The Business 350 Series provides full Layer 3 routing functionalities, enabling dynamic routing protocols such as OSPF, RIP, and static routing configurations. These features allow network administrators to design scalable networks with multiple subnets, optimize traffic flow, and maintain high availability. The switch supports inter-VLAN routing, which simplifies communication between different network segments while maintaining security boundaries. Additionally, the CBS350-48P-4X-NA can handle policy-based routing and multicast routing for efficient management of voice, video, and data traffic across complex network infrastructures.

Comprehensive PoE+ Support

The CBS350-48P-4X-NA delivers robust Power over Ethernet Plus (PoE+) support across all 48 ports, providing up to 740W of power budget. This capability allows seamless integration of IP phones, wireless access points, surveillance cameras, and other powered devices without requiring separate power sources. PoE+ simplifies deployment, reduces cabling complexity, and supports future expansion of IoT devices within business networks. Administrators can monitor, allocate, and prioritize PoE power through the intuitive management interface, ensuring critical devices receive uninterrupted power and connectivity.

Enhanced Network Security and Reliability

Security is a fundamental aspect of the CBS350-48P-4X-NA design. The switch offers robust features such as Access Control Lists (ACLs), port security, and DHCP snooping, preventing unauthorized access and mitigating potential network threats. Dynamic ARP Inspection (DAI) and IP Source Guard provide additional safeguards against spoofing attacks, while private VLANs and segmentation features isolate sensitive devices and critical applications. These security measures, combined with redundancy protocols like Spanning Tree Protocol (STP) and Link Aggregation Control Protocol (LACP), ensure high network reliability and minimized downtime for business operations.

Intuitive Management and Monitoring Tools

The CBS350-48P-4X-NA supports multiple management options including web-based GUI, Command-Line Interface (CLI), and SNMP-based management. Administrators can easily configure VLANs, PoE settings, and Layer 3 routing parameters using an intuitive graphical interface. The switch also integrates with Cisco's network monitoring tools, enabling real-time traffic analysis, bandwidth monitoring, and automated alerts for network anomalies. With these capabilities, IT teams can maintain optimal network performance, quickly troubleshoot issues, and proactively manage capacity planning.

Scalable Connectivity for Growing Businesses

Designed for business expansion, the CBS350-48P-4X-NA supports link aggregation and high-speed uplinks through its 10 Gigabit SFP+ ports, allowing seamless integration with core switches and data centers. This scalability ensures that network performance remains consistent as user demands and device counts increase. The switch also supports stacking capabilities, enabling multiple switches to operate as a single logical unit for simplified management and increased redundancy. This makes the CBS350-48P-4X-NA an ideal choice for organizations planning gradual growth or multi-floor deployments.

Energy Efficiency and Environmental Considerations

Cisco has engineered the CBS350-48P-4X-NA to optimize energy consumption without compromising performance. The switch incorporates Energy Efficient Ethernet (EEE) technology, intelligent PoE allocation, and adaptive power management to reduce operational costs. These energy-saving features not only help organizations lower electricity expenses but also support environmental sustainability initiatives. Additionally, the switch operates silently with fan-speed optimization, making it suitable for office environments where noise reduction is important.

Robust Quality of Service (QoS) and Traffic Management

The Business 350 Series switch includes advanced Quality of Service (QoS) features, ensuring prioritization of critical business traffic such as VoIP, video conferencing, and data-sensitive applications. Administrators can configure QoS policies based on port, VLAN, or protocol type, guaranteeing predictable network performance under heavy load conditions. The CBS350-48P-4X-NA also supports traffic shaping, rate limiting, and congestion avoidance mechanisms, allowing businesses to maintain efficient bandwidth utilization and prevent bottlenecks.

Seamless Integration with Cisco Ecosystem

The CBS350-48P-4X-NA integrates seamlessly with Cisco's broad portfolio of networking solutions. Whether connecting to wireless access points, security appliances, or higher-layer switches, this managed switch ensures smooth interoperability and unified management. Cisco's intuitive software platforms provide centralized monitoring, configuration, and reporting, simplifying administration for IT teams. The switch also supports software-defined networking (SDN) features, enabling automation, orchestration, and enhanced visibility across the enterprise network.

Reliable Deployment for Various Business Environments

The CBS350-48P-4X-NA is suitable for diverse business applications, including office networks, retail environments, educational institutions, and healthcare facilities. Its high port density and Layer 3 capabilities allow for flexible network design, supporting multiple VLANs, voice networks, and secure guest access. The switch's durable construction, redundancy protocols, and long product lifecycle ensure dependable operation even in demanding environments. With its combination of performance, security, and manageability, the CBS350-48P-4X-NA stands as a cornerstone for building resilient business networks.

Comprehensive Support and Firmware Upgrades

Cisco provides continuous firmware updates for the CBS350-48P-4X-NA, enhancing functionality, security, and network efficiency. The switch benefits from Cisco's extensive technical support resources, including knowledge bases, online forums, and direct customer support channels. Firmware management and upgrade tools allow administrators to apply updates seamlessly without disrupting business operations. This ensures that networks remain secure, feature-rich, and compatible with evolving technologies.

Technical Specifications and Port Capabilities

The CBS350-48P-4X-NA features 48 10/100/1000 Mbps Ethernet ports with PoE+, four 10-Gigabit SFP+ uplink ports, and a switching capacity of 104 Gbps. Each port supports auto-negotiation, flow control, and VLAN tagging, providing flexibility for enterprise traffic management. The switch offers Layer 2 and Layer 3 protocols, including RIP, OSPF, IPv6, and static routing. PoE management allows administrators to allocate power intelligently, ensuring critical devices maintain operational uptime. Redundant power supply support and stacking capabilities further enhance the switch's reliability for mission-critical applications.

Deployment Scenarios and Best Practices

The CBS350-48P-4X-NA is highly adaptable for various deployment scenarios. In office environments, it enables high-density connectivity for workstations, wireless access points, and VoIP devices. In retail and hospitality, the switch provides seamless integration for IP surveillance, point-of-sale systems, and guest Wi-Fi networks. Educational campuses can leverage VLAN segmentation and traffic prioritization to separate administrative, student, and faculty networks securely. Healthcare facilities benefit from secure and reliable connectivity for medical devices, electronic health records, and video communications. Following Cisco deployment best practices ensures optimal performance, security, and scalability for all business types.