Thông số kỹ thuật Switch Cisco CBS250-8P-E-2G-EU
| Feature | Description |
| Capacity in millions of packets per second (mpps) (64-byte packets) | 14.88 |
| Switching capacity in gigabits per second (Gbps) | 20.0 |
| RJ-45 ports | 8 Gigabit Ethernet PoE+ |
| Combo ports (RJ-45 + SFP) | 2 Gigabit Ethernet combo |
| Flash | 256 MB |
| CPU | 800 MHz ARM |
| CPU memory | 512 MB |
| Packet buffer | 1.5 MB |
| Power dedicated to PoE | 67W |
| Number of ports that support PoE | 8 |
| Layer 2 switching | |
| Spanning Tree Protocol (STP) |
Standard 802.1d spanning tree support Fast convergence using 802.1w (Rapid Spanning Tree Protocol [RSTP]), enabled by default Multiple spanning tree instances using 802.1s (MSTP); 8 instances are supported Per-VLAN Spanning Tree Plus (PVST+); 126 instances are supported Rapid PVST+ (RPVST+); 126 instances are supported |
| Port grouping/link aggregation |
Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP) Up to 4 groups
Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad Link Aggregation Group (LAG)
|
| VLAN |
Support for up to 255 active VLANs simultaneously Port-based and 802.1Q tag-based VLANs Management VLAN Guest VLAN |
| Layer 3 routing | |
| IPv4 routing |
Wire-speed routing of IPv4 packets Up to 32 static routes and up to 16 IP interfaces |
| IPv6 routing | Wire-speed routing of IPv6 packets |
| Layer 3 interface | Configuration of Layer 3 interface on physical port, LAG, VLAN interface, or loopback interface |
| Physical | |
| Unit dimensions (W x H x D) |
268 x 185 x 44 mm (10.56 x 7.28 x 1.73 in) |
| Unit weight | 3.5 kg (7.72 lb) |
| Power | 100 to 240V 50 to 60 Hz, internal |
| Certification | UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A |
| Operating temperature | 23° to 122°F (-5° to 50°C) |
| Storage temperature | -13° to 158°F (-25° to 70°C) |
| Operating humidity | 10% to 90%, relative, noncondensing |
| Storage humidity | 10% to 90%, relative, noncondensing |
| Fan (number) | Fanless |
| MTBF at 25°C (hours) | 1,706,649 |
