| Specification | Details |
|---|---|
| Gigabit Ethernet ports | 24 |
| Uplink interfaces | 4 SFP |
| PoE+ power budget | N/A |
| Fanless | Yes |
| Dimensions (WxDxH in inches) | 17.5 x 9.45 x 1.73 |
| Console ports | – RJ-45 Ethernet: 1 – USB mini-B: 1 – USB-A port for storage and Bluetooth console: 1 |
| Memory and Processor | Details |
|---|---|
| CPU | ARM v7 800 MHz |
| DRAM | 512 MB |
| Flash memory | 256 MB |
| Performance | Details |
|---|---|
| Forwarding bandwidth | 28 Gbps |
| Switching bandwidth | 56 Gbps |
| Forwarding rate (64-byte L3 packets) | 41.67 Mpps |
| Unicast MAC addresses | 16,000 |
| IPv4 unicast direct routes | 542 |
| IPv4 unicast indirect routes | 256 |
| IPv6 unicast direct routes | 414 |
| IPv6 unicast indirect routes | 128 |
| IPv4 static routes | 16 |
| IPv6 static routes | 16 |
| IPv4 multicast routes and IGMP groups | 1,024 |
| IPv6 multicast groups | 1,024 |
| IPv4/MAC security ACEs | 600 |
| IPv6 security ACEs | 600 |
| Maximum active VLANs | 256 |
| VLAN IDs available | 4,094 |
| Maximum STP instances | 64 |
| Maximum SPAN sessions | 4 |
| MTU-L3 packet | 9,198 bytes |
| Jumbo Ethernet frame | 10,240 bytes |
| Dying Gasp | Yes |
| MTBF | Details |
|---|---|
| MTBF in hours (data) | 2,026,793 |
| MTBF in hours (PoE) | 698,220 |
| MTBF in hours (Full PoE) | 698,220 |
| Environmental | Details |
|---|---|
| Operating temperature (sea level) | -5°C to 50°C (short-term operation) |
| Operating temperature (up to 1,500m) | -5°C to 45°C |
| Operating temperature (up to 3,000m) | -5°C to 40°C |
| Operating altitude | 10,000 ft (3,000m) |
| Operating relative humidity | 5% to 90% at 40°C |
| Storage temperature | -25°C to 70°C (-13°F to 158°F) |
| Storage altitude | 15,000 ft (4,500m) |
| Storage relative humidity | 5% to 95% at 65°C |
Note: Operation at 50°C is supported for short-term operation only. GLC-BX-D/U and CWDM optics do not support operation at 50°C. The minimum ambient temperature for cold start is 0°C (32°F).