Specifications
| Specification | Details |
|---|---|
| Brand | Cisco |
| Series | Cisco Business 250 Series |
| Model | CBS250-24P-4G |
| Product Code | CBS250-24P-4G-EU |
| Product Type | Smart Managed PoE+ Network Switch |
| RJ45 Ports | 24 × 10/100/1000 Mbps |
| SFP Ports | 4 × 1 Gigabit SFP |
| Total System Ports | 28 × Gigabit Ethernet |
| PoE Ports | 24 |
| PoE Standard | IEEE 802.3af / IEEE 802.3at PoE+ |
| Maximum PoE per Port | Up to 30W |
| Total PoE Budget | 195W |
| Switching Capacity | 56 Gbps |
| Forwarding Rate | 41.66 Mpps |
| MAC Address Table | 8K Addresses |
| Packet Buffer | 1.5 MB |
| Jumbo Frame | Up to 9K |
| Active VLANs | Up to 255 |
| Static IPv4 Routes | Up to 32 |
| IP Interfaces | Up to 16 |
| QoS Queues | 8 Hardware Queues |
| Link Aggregation | IEEE 802.3ad LACP |
| Spanning Tree | STP / RSTP / MSTP |
| Multicast | IGMP Snooping |
| Network Access Control | IEEE 802.1X |
| ACL | Up to 512 Rules |
| IPv4 / IPv6 | Supported |
| Energy Efficient Ethernet | IEEE 802.3az |
| Management | Web GUI / CLI / SNMP / SSH / HTTPS |
| Cooling | Fanless |
| Mounting | Rack Mountable |
| Power Supply | Internal Universal |
| Input Power | 100–240V AC, 50–60Hz |
| Dimensions | 445 × 299 × 44 mm |
| Weight | 3.53 kg |
| Operating Temperature | -5°C to 50°C |
Quality of Service
The switch provides advanced traffic-prioritization capabilities with 8 hardware queues.
Supported QoS functions include:
- IEEE 802.1p / CoS
- DSCP-based prioritization
- Strict Priority scheduling
- Weighted Round-Robin
- Port-based classification
- VLAN-based classification
- IPv4 and IPv6 traffic classification
- Ingress rate limiting
- Egress shaping and rate control
These capabilities help prioritize latency-sensitive traffic such as VoIP, video conferencing, surveillance traffic, and other critical business applications.
Network Management Features
- Browser-based graphical interface
- Command-Line Interface
- HTTP / HTTPS
- SSH
- SNMP
- RADIUS
- Syslog
- Port mirroring
- VLAN mirroring
- Cable diagnostics
- DHCP Client and Relay
- TFTP firmware upgrade
- SCP secure file transfer
- Dual firmware images
- Cisco Discovery Protocol
- LLDP / LLDP-MED
- Bonjour discovery
- Smartports
- Auto Smartports
Supported Network Standards
- IEEE 802.3 Ethernet
- IEEE 802.3u Fast Ethernet
- IEEE 802.3ab Gigabit Ethernet
- IEEE 802.3z Gigabit Ethernet
- IEEE 802.3af PoE
- IEEE 802.3at PoE+
- IEEE 802.3az Energy Efficient Ethernet
- IEEE 802.3x Flow Control
- IEEE 802.1Q VLAN
- IEEE 802.1p QoS
- IEEE 802.1X Authentication
- IEEE 802.1D STP
- IEEE 802.1w RSTP
- IEEE 802.1s MSTP
- IEEE 802.3ad LACP
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