Cisco CBS350-24XS Full English Product Description
1. Short Sales Title (For Quotation & E-commerce Listing)
Cisco CBS350-24XS Business 350 Series 24-Port Pure 10G SFP+ Non-PoE Fully Managed Layer 3 Switch, Global Standard Version, 4×10G SFP+/RJ45 Combo Uplink Interfaces, Dual-Stack IPv4/IPv6 Dynamic Routing, True Stackable, 1RU Rackmount Fiber-Centric High-Speed Aggregation Switch
2. Official Product Overview
The Cisco CBS350-24XS is an all-fiber 10-Gigabit fully managed enterprise Layer 3 switch within the Cisco Business 350 global portfolio. The suffix XS stands for 24 dedicated 10G SFP+ fiber access ports (no copper RJ45 access ports), with 4 shared 10G combo uplink ports supporting either 10G SFP+ fiber or 10GBase-T copper. It has zero PoE capability, designed for multi-building campus fiber backbones, optical storage aggregation, industrial fiber monitoring networks and data center pure-fiber rack top-of-rack deployment worldwide.
Compared with entry-level CBS250 smart switches, CBS350 delivers complete enterprise-grade managed functions: dynamic RIPv2 Layer 3 routing, true single-IP stacking (up to 4 units), comprehensive anti-spoofing security suite, sFlow traffic analytics and full-featured multicast control. This all-SFP+ switch eliminates copper distance limits, supporting long-haul single-mode fiber interconnection between remote buildings, and flexible combo uplinks to connect core switches via either copper or fiber 10G links. It consolidates all high-speed fiber access and aggregation in one compact 1RU rack unit, suitable for fiber surveillance, optical NAS and 10G IoT backbone environments without copper desktop access requirements.
It features 24 dedicated 10G SFP+ fiber-only access ports plus 4 dual-purpose 10G SFP+/RJ45 combo uplink ports, delivering 28 total 10-Gigabit wire-speed interfaces for redundant multi-link fiber backbone deployment. Powered by an 800MHz ARM processor with 512MB DRAM and 256MB flash memory, it provides 480 Gbps non-blocking switching capacity and 357.14 Mpps wire-speed forwarding rate for 64-byte frames, paired with a 3MB shared dynamic packet buffer to eliminate congestion under mass 4K fiber streaming, bulk optical storage file transfers and cross-site high-bandwidth enterprise video conferences. Optimized variable-speed multi-fan cooling ensures stable 24/7 continuous rack operation in core data equipment rooms, campus fiber server racks and industrial control stations.
3. Port & Hardware Specifications
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24 × dedicated 10G SFP+ fiber access slots (No copper RJ45 access ports, No PoE power support)
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4 × 10G SFP+/RJ45 combo uplink ports (shared dual-media 10G interfaces; 4X = four 10G combo uplinks, differentiated from 4G 1G-only SFP uplink models)
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Supported Cisco transceivers: Gigabit SFP (MGBSX1/MGBLX1/MGBLH1/MGBT1), 10G SFP+ (SFP-10G-SR, SFP-10G-LR, SFP-10G-LX, copper twinax SFP+)
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No built-in PoE power supply
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Switching Capacity: 480 Gbps Non-Blocking
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Forwarding Rate (64-byte packets): 357.14 Mpps
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Shared Packet Buffer: 3 MB
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MAC Address Table: 16K entries; Jumbo Frame support up to 9000-byte MTU
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Dual console ports: RJ45 serial console + mini USB port for offline local CLI configuration
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Front-panel USB Type-A port for offline configuration backup & firmware upgrade
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True stacking capability: stack up to 4 CBS350 series switches under single IP unified management; cross-stack LAG, VLAN, QoS and remote port mirroring fully supported
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Internal universal AC power supply: 100–240V 50/60Hz global standard power cord
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Intelligent variable-speed multi-fan thermal cooling system, auto-adjust fan speed based on internal temperature
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Form Factor: 1RU standard rackmount chassis, support rack mount, wall mount and desktop placement
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Dimensions: 445 × 240 × 44 mm (17.5 × 9.45 × 1.73 inches)
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Weight: 2.05 kg (4.52 lbs)
4. Comprehensive Layer 2 Switching Functions
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Up to 4096 IEEE 802.1Q tagged VLANs, port-based VLAN, voice VLAN, guest VLAN, private VLAN, dedicated management VLAN
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8 priority egress queues with Strict Priority / WRR / SPQ QoS scheduling to prioritize fiber-transmitted VoIP, mass 4K surveillance video and enterprise business data traffic
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IEEE 802.3ad LACP link aggregation, multiple LAG groups for bandwidth expansion & link redundancy, cross-stack LAG fully supported
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IGMP Snooping v1/v2/v3 with built-in IGMP Querier, supporting up to 1024 multicast groups for IPTV and all-fiber IP video surveillance
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LLDP & LLDP-MED automatic endpoint discovery for fiber-connected IP cameras, optical media converters and fiber wireless gateways
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Port mirroring, VLAN mirroring, RSPAN remote mirroring, RSTP/MSTP/PVST+ spanning tree, BPDU Guard, Root Guard, Loop Guard
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Broadcast/multicast/unicast storm control to prevent fiber link flooding failures
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Enterprise anti-spoofing toolkit: DHCP Snooping, Dynamic ARP Inspection (DAI), IP Source Guard, static IP/MAC/Port Binding
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sFlow traffic monitoring for real-time 10G uplink bandwidth analysis and network fault troubleshooting
5. Advanced Dual-Stack Dynamic Layer 3 Routing
Far exceeding static-only routing on CBS250 smart switches, CBS350 provides full wire-speed Layer 3 forwarding:
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Dynamic routing protocol: RIPv2 for IPv4
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Up to 990 IPv4 static routes, 990 IPv6 static routes, 128 Layer 3 VLAN interfaces
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Native dual-stack IPv4/IPv6 wire-speed forwarding, CIDR aggregation, full IPv6 first-hop security (ND Inspection, RA Guard)
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Built-in IPv4 DHCP Server & DHCP Relay with Option 82, UDP relay functionality
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Policy-Based Routing (PBR) for flexible traffic steering across fiber-separated network segments
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Direct inter-VLAN routing without external routers to reduce core gateway latency and bandwidth load for large-scale cross-building 10G fiber backbone traffic
6. Enterprise-Grade Multi-Layer Security Suite
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IEEE 802.1X port-based authentication with RADIUS/TACACS+ centralized access control, web-based captive portal authentication
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Port security, static/dynamic MAC address binding, automatic port shutdown for unauthorized fiber-connected terminals
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Comprehensive DoS attack suppression, hardware accelerated L2-L4 ACL traffic filtering for fiber access control
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Encrypted management channels: HTTPS web GUI, SSH multi-privilege CLI, SCP file transfer, SNMPv3 secure remote monitoring
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Persistent syslog event logging, built-in cable diagnostic tools, mandatory password complexity policy
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Independent guest network isolation, Private VLAN Edge (PVE) for fiber client separation
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Secure boot, encrypted configuration file storage to prevent unauthorized configuration tampering, IPv6 ND Inspection & RA Guard against IPv6 fiber link spoofing
7. Energy-Saving Green Technologies
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IEEE 802.3az Energy Efficient Ethernet (EEE): auto power reduction for idle SFP+ fiber links
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Dynamic power tuning based on link status to cut unnecessary power consumption
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Port LED dimming or full shutdown mode for unmanned fiber wiring closets
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Intelligent variable fan speed adjustment to reduce power consumption and noise under light network load
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Optimized hardware design with balanced heat dissipation and extended service lifespan
8. Multi-Mode Local & Remote Management
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Intuitive graphical web management interface (HTTP/HTTPS) with basic & advanced operation modes
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Dual offline local console access: serial RJ45 + mini USB port for offline CLI configuration
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SSH secure remote command line management with multi-user privilege levels (1 / 7 / 15)
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SNMP v1/v2c/v3 compatible with third-party network monitoring platforms, native sFlow support
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TFTP/SCP/offline USB firmware upgrade, dual redundant firmware images for reliable zero-downtime upgrades
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SNTP time synchronization, ping & traceroute diagnostic tools, Smartport auto-provisioning templates for fiber SFP endpoints
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Single IP stacking management for centralized batch control of up to 4 stacked CBS350 switches
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Fully compatible with Cisco Business Dashboard & Cisco Business Mobile App for unified topology visualization and zero-touch all-fiber network deployment
9. Physical & Environmental Parameters
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Operating Temperature: -5°C to 50°C; Storage Temperature: -25°C to 70°C
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Operating Humidity: 10%–90% non-condensing relative humidity
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Global compliance standards: CE, RoHS, UL, FCC Class A
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MTBF: 909,838 hours at 25°C ambient temperature
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Warranty: Cisco Limited Lifetime Hardware Warranty
10. Typical Deployment Scenarios
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Global multi-building campus core fiber aggregation switch for long-distance single-mode fiber interconnection between classrooms, offices and workshops
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Large factory all-fiber monitoring backbone switch linking industrial IP cameras and IoT sensors via Gigabit/10G fiber links
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Medium enterprise optical storage core switch for high-capacity NAS storage connected by dedicated 10G fiber SFP+ ports
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Retail chain central fiber backbone switch interconnecting remote store surveillance systems and core headquarters
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Stackable multi-switch scalable fiber enterprise network leveraging true stacking and dynamic Layer 3 routing for multi-site fiber traffic forwarding
11. Standard Package Contents
1 × Cisco CBS350-24XS Pure Fiber 10G Non-PoE Fully Managed Switch (Global Standard Version)
1 × Global standard AC power cord
Rack mounting brackets and installation screws
Quick Start Guide & global regulatory compliance documents
Short Commercial Version (For Product Ads & Listing Titles)
The Cisco CBS350-24XS is a global pure fiber 24-port 10G fully managed switch with 24 dedicated 10G SFP+ fiber access ports and 4×10G SFP+/RJ45 combo uplink interfaces (XS = all 10G ports, no 1G-only 4G uplink modules). Featuring dynamic dual-stack IPv4/IPv6 Layer 3 routing, true stacking capability, enterprise anti-spoofing security, full QoS and variable-speed fan thermal design, it delivers non-blocking long-distance fiber connectivity for mass optical surveillance, fiber NAS and multi-building campus backbone networks, supporting rack/wall/desktop deployment, energy-efficient hardware and Cisco Limited Lifetime Hardware Warranty.
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