Cisco CBS250-24FP-4G 24-Port Gigabit PoE+ Managed Switch with SFP (NA) | Excess
SKU: CBS250-24FP-4G-NA-WS
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Overview of Cisco CBS250-24FP-4G 24-Port Gigabit PoE+ Managed Switch with SFP (NA) | Excess
The Cisco CBS250-24FP-4G 24-Port Gigabit PoE+ Managed Switch with SFP (NA) is built for small and medium-sized business networks that must supply power to a large number of IoT, voice, radio and surveillance devices. It offers a scalable access-layer foundation for offices, retail establishments, schools, clinics and branch environments by combining 24 Gigabit PoE+ ports, a strong 370W PoE budget, and four Gigabit SFP uplink slots. The CBS250-24FP-4G, which is a member of the Cisco Business 250 Series, offers intelligent Layer 2 and Layer 3 static-routing features with adaptable management, robust security controls, VLAN segmentation and application-aware traffic prioritization. By providing power and data via a single Ethernet cable, its full-PoE design enables enterprises to streamline endpoint deployment.
Key Features of Cisco CBS250-24FP-4G 24-Port Gigabit PoE+ Managed Switch
• 24 × 10/100/1000 Mbps Gigabit Ethernet ports with IEEE 802.3af PoE and IEEE 802.3at PoE+ support.
• Up to 30W of PoE+ power per compatible Ethernet port supports high-power access points, IP cameras, VoIP phones and connected building devices.
• 370W total PoE budget supports dense deployments of powered endpoints from one managed network switch.
• 4 × 1GbE SFP uplink slots provide fiber connectivity to network cores, distribution switches, servers, or remote buildings.
• 56 Gbps switching capacity and 41.66 Mpps forwarding rate provide nonblocking, wire-speed performance for Gigabit access traffic.
• Layer 3 static routing, IPv4/IPv6 support, DHCP relay and inter-VLAN routing help control traffic between segmented business networks.
• Up to 255 active VLANs enable secure separation of users, voice, guest access, surveillance, wireless and IoT infrastructure.
• Link aggregation with IEEE 802.3ad LACP increases bandwidth and resiliency for switch uplinks, servers and storage systems.
• Advanced QoS supports voice, video, cloud applications and business-critical traffic through traffic classification, queueing, policing, shaping and remarking.
• IEEE 802.1X authentication, ACLs, RADIUS, TACACS+, DHCP snooping, Dynamic ARP Inspection, IP Source Guard and DoS protection enhance network access security.
• Cisco Business Dashboard, embedded web GUI, CLI, SNMP and Cisco Business mobile app compatibility provide flexible setup, monitoring, and management options.
• Dual firmware images help reduce software-upgrade risk by retaining a backup image for recovery or rollback.
• 1RU rack-mountable design with internal power and active cooling supports professional wiring-closet installations.
Benefits of Cisco CBS250-24FP-4G 24-Port Gigabit PoE+ Managed Switch
🗹 Powers up to 24 PoE or PoE+ devices from one managed Gigabit Ethernet switch, minimizing the need for individual power adapters and electrical outlets.
🗹 Provides enough PoE capacity for dense wireless, surveillance, unified communications, access-control and IoT deployments through its 370W budget.
🗹 Extends the network over fiber through four SFP uplinks, supporting long-distance connectivity, core-switch aggregation and electrically isolated links.
🗹 Segments users, voice systems, guest access, cameras, access points and IoT endpoints with VLANs and static Layer 3 routing.
🗹 Maintains responsive VoIP calls, video conferencing, cloud software and networked security systems by prioritizing critical traffic with QoS.
🗹 Improves business-network security with authenticated wired access, ACL-based policy enforcement, DHCP and ARP protections, and denial-of-service controls.
🗹 Simplifies IT operations with Cisco Business Dashboard, local web management, mobile administration and standards-based monitoring tools.
🗹 Provides a practical full-PoE+ switching platform for organizations that need enterprise-oriented capabilities without a complex enterprise-switch operating model.
Specifications
Specifications for Cisco CBS250-24FP-4G 24-Port Gigabit PoE+ Managed Switch with SFP (NA) | Excess
| Manufacturer | Cisco |
| Manufacturer Part Number | CBS250-24FP-4G-NA |
| Product Name | Cisco CBS250-24FP-4G 24-Port Gigabit PoE+ Managed Switch with SFP |
| Product Type | Networking Switch |
| Form factor | Fixed configuration, 1RU rack-mountable |
| Total system ports | 28 |
| RJ45 downlink ports | 24 × 10/100/1000BASE-T Gigabit Ethernet |
| PoE-capable ports | 24 × IEEE 802.3af PoE / IEEE 802.3at PoE+ capable Gigabit RJ45 ports |
| Uplink ports | 4 × 1GbE SFP / 1000BASE-X slots |
| Management ports | 1 × RJ45 console, 1 × USB Mini-B console, and 1 × USB Type-A |
| PoE per-port output | Up to 30W |
| Total PoE power budget | 370W |
| Switching capacity | 56 Gbps |
| Forwarding rate | 41.66 Mpps for 64-byte packets |
| Switching architecture | Wire-speed, nonblocking |
| CPU | ARM processor at 800 MHz |
| DRAM | 512 MB |
| Flash memory | 256 MB |
| Packet buffer | 1.5 MB |
| MAC address table | Up to 8,000 entries |
| Jumbo frame support | Up to 2,000 bytes |
| Link aggregation | IEEE 802.3ad LACP; static and dynamic aggregation supported |
| Link aggregation groups | Up to 8 LAGs |
| Active ports per LAG | Up to 8 |
| Spanning Tree Protocol | IEEE 802.1D STP, IEEE 802.1w RSTP, IEEE 802.1s MSTP, PVST+, and Rapid PVST+ |
| MSTP instances | Up to 8 |
| PVST+ / Rapid PVST+ instances | Up to 126 |
| Loop protection | Loopback detection independent of STP |
| Flow control | IEEE 802.3x |
| Energy Efficient Ethernet | IEEE 802.3az |
| VLAN identifiers | Up to 4,094 VLAN IDs |
| Active VLANs | Up to 255 |
| VLAN support | IEEE 802.1Q tag-based VLANs and port-based VLANs |
| VLAN functions | Management VLAN, Guest VLAN, Voice VLAN, Private VLAN Edge, GVRP, and GARP |
| Voice VLAN | Supported with automatic voice traffic classification and QoS prioritization |
| Endpoint discovery | Cisco Discovery Protocol, LLDP, LLDP-MED, and Voice Services Discovery Protocol |
| Multicast support | IGMP snooping v1/v2/v3, IGMP querier, IGMP fast leave, source-specific multicast, MLD snooping v1/v2, and MLD querier |
| Multicast group capacity | Up to 1,024 groups |
| Layer 3 routing | IPv4 and IPv6 static routing, inter-VLAN routing, RIP v2, RIPng, DHCP relay, UDP relay, and CIDR |
| IPv4 static routes | Up to 990 |
| IPv6 static routes | Up to 256 |
| IP interfaces | Up to 128 |
| Layer 3 interfaces | Physical port, LAG, VLAN interface, and loopback interface |
| Access control lists | Layer 2 through Layer 4 ACLs |
| ACL capacity | Up to 512 rules |
| Port authentication | IEEE 802.1X |
| Authentication services | RADIUS authentication/accounting, TACACS+, MAC-based authentication, web-based authentication, and Guest VLAN |
| Security controls | Port security, DHCP snooping, IP Source Guard, Dynamic ARP Inspection, IPv6 Source Guard, IPv6 DHCP Guard, IPv6 Router Advertisement Guard, DoS protection, and storm control |
| QoS queues | 8 hardware priority queues per port |
| QoS scheduling | Strict Priority and Weighted Round Robin |
| QoS classification | Port, 802.1p CoS, DSCP, IP precedence, TCP/UDP port, VLAN, ACL, and MAC address |
| QoS functions | Rate limiting, policing, shaping, queue assignment, and packet remarking |
| Operating system | Customized Linux OS |
| Embedded management | Web-based GUI and configuration wizards |
| CLI access | RJ45 console, USB Mini-B console, Telnet, and SSH |
| Centralized management | Cisco Business Dashboard |
| Mobile management | Cisco Business mobile app |
| Zero-touch provisioning | Cisco Network Plug and Play |
| SNMP | SNMPv1, SNMPv2c, and SNMPv3 |
| Monitoring | RMON, port mirroring, sFlow, cable diagnostics, event logging, and system logging |
| Secure management | HTTPS, SSH, SSL/TLS, SCP, RADIUS, TACACS+, and SNMPv3 |
| File transfer and configuration | TFTP, HTTP, HTTPS, SCP, configuration backup, and restore |
| Time synchronization | NTP and SNTP |
| IPv6 management | Supported |
| Bluetooth | Optional external Bluetooth dongle supported through USB Type-A port |
| LEDs | System, Link/Activity, Speed, and PoE |
| Ethernet standards | IEEE 802.3, 802.3u, 802.3ab, 802.3x, 802.3ad, 802.3az, 802.3af, 802.3at, 802.1D, 802.1Q, 802.1p, 802.1w, 802.1s, 802.1X, and 802.1ab |
| Copper cabling | Category 5e or higher for 1000BASE-T |
| Supported uplink media | Compatible 1GbE SFP optical transceivers and supported direct-attach copper cables |
| Power supply | Internal universal AC power supply |
| AC input voltage | 100–240 VAC |
| Input frequency | 50–60 Hz |
| Maximum system power consumption | 79.70W at 110 VAC; 77.80W at 220 VAC without PoE load |
| Maximum system power consumption | 449.70W at 110 VAC; 439.10W at 220 VAC with full PoE load |
| Maximum heat dissipation | 1,535.49 BTU/hr |
| Cooling | Active cooling with internal fans |
| Acoustic noise | 45.4 dB |
| Dimensions, W × D × H | 445 × 345 × 44 mm (17.5 × 13.59 × 1.73 in.) |
| Weight | 5.15 kg (11.35 lb.) |
| Operating temperature | -5°C to 50°C (23°F to 122°F) |
| Operating humidity | 10% to 90%, noncondensing |
| Storage temperature | -25°C to 70°C (-13°F to 158°F) |
| Storage humidity | 10% to 90%, noncondensing |
| Mounting | Rack-mount hardware included; desktop use supported with included rubber feet |
| Software licensing | Perpetual license; no subscription required for core switch operation |
User Guides
Frequently Asked Questions
Cisco CBS250-24FP-4G 24-Port Gigabit PoE+ Managed Switch
Frequently Asked Questions (FAQ's)
How many Gigabit Ethernet ports does the CBS250-24FP-4G provide?
It provides 24 10/100/1000 Mbps RJ-45 Gigabit Ethernet ports along with four dedicated Gigabit SFP interfaces, giving the switch 28 total system ports.
Do all 24 RJ-45 ports support PoE+?
Yes. Cisco specifies 24 PoE-capable ports on the CBS250-24FP-4G, allowing compatible powered devices to be deployed across all 24 access interfaces.
What is the PoE power budget of the CBS250-24FP-4G?
The switch provides a substantial 370W dedicated PoE budget, making it the higher-power 24-port PoE configuration in this CBS250 family.
How much PoE power can an individual port provide?
Cisco specifies up to 30W per 10/100 or Gigabit Ethernet port with IEEE 802.3at PoE+, until the overall switch PoE budget is reached.
Does the switch support standard PoE as well as PoE+?
Yes. Cisco specifies support for IEEE 802.3af PoE and IEEE 802.3at PoE+, as well as Cisco prestandard legacy PoE.
How many SFP uplink ports are included?
The CBS250-24FP-4G includes four dedicated Gigabit SFP interfaces in addition to its 24 RJ-45 ports.
Are the four uplinks SFP or 10G SFP+?
They are Gigabit SFP ports, not 10G SFP+. Buyers requiring 10 Gigabit uplinks should look at the CBS250 models with “4X” designations, such as the CBS250-24FP-4X.
What is the switching capacity of the CBS250-24FP-4G?
Cisco specifies a 56 Gbps switching capacity, providing wire-speed, nonblocking switching across the platform.
What is its packet-forwarding rate?
The switch provides a forwarding rate of approximately 41.66 million packets per second (Mpps).
How much packet buffer memory does it have?
Cisco specifies 1.5 MB of dynamically shared packet buffer memory for this model.
Can the CBS250-24FP-4G power wireless access points?
Yes. Compatible PoE and PoE+ wireless access points can receive power and network connectivity through the Ethernet ports, provided their combined requirements remain within the 370W budget.
Can it power PoE surveillance cameras?
Yes. The 24 PoE+ interfaces make the switch well suited to compatible IP surveillance cameras, particularly installations requiring multiple powered cameras from centralized network infrastructure.
Is it suitable for PoE IP phones?
Yes. Compatible IP phones can receive power and data through Ethernet. The switch also supports LLDP-MED functionality for IP-phone environments.
Does the CBS250-24FP-4G support VLANs?
Yes. VLAN functionality can logically separate traffic such as voice, cameras, employee devices, management systems and guest networks.
Does it support Quality of Service?
Yes. QoS capabilities allow administrators to classify and prioritize network traffic, making the switch useful for environments running voice, video and other latency-sensitive applications.
Does the switch support link aggregation?
Yes. Cisco specifies IEEE 802.3ad LACP with up to four link-aggregation groups and up to eight ports per group, providing additional options for bandwidth and connectivity design.
Which SFP transceivers can be used?
Cisco lists compatible options including MGBSX1, MGBLH1, MGBLX1, MGBT1 and GLC-SX-MMD, among other supported modules. The correct transceiver should be chosen according to media type, distance and network requirements.
Does the CBS250-24FP-4G have a console port?
Yes. Cisco specifies a standard RJ-45 console port on this model for administrative access.
Does the switch include a USB port?
Yes. A USB Type-A slot is located on the front panel and can be used for supported file and software-image management tasks.
What types of deployments are best suited for the CBS250-24FP-4G?
Its combination of 24 powered Gigabit ports, a 370W PoE budget, four SFP interfaces, VLANs, QoS and smart management makes it well suited for business offices, schools, retail sites, hospitality environments, VoIP deployments, wireless networks and IP surveillance installations.