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Description
Add more switching capacity to your corporate network with the SF250-48 48-Port Fast Ethernet Smart Switch from Cisco. This switch comes equipped with 48 10/100 Mb/s Ethernet ports, a pair of 10/100/1000 Mb/s RJ45/SFP combo ports, and two SFP ports, while a USB Type-A port allows for image and configuration transfers.
Powered by an 800 MHz ARM processor with 512 MB of RAM and 256 MB of flash memory, the SF250-48 Smart Switch boasts network security features such as 802.11x user authentication, denial-of-service attack prevention, and access control lists. The SF250-48’s support for the Energy Efficient Ethernet standard allows the switch to conserve power during periods of low data traffic.
Additional information
| Weight | 10.55 lbs |
|---|---|
| Dimensions | 21.3 × 15.3 × 4.2 in |
| Ports | 48 x 10/100 Mb/s Ethernet (RJ45)<br />2 x 10/100/1000 Mb/s Gigabit Combo (Ethernet/SFP)<br />2 x SFP<br />1 x USB Type-A |
| Packet Buffer | 24 Mb |
| Mean Time Between Failures (MTBF) | 256, 281 Hours |
| Cooling System | Passive |
| Storage Humidity | 10 to 90% |
| Storage Temperature | -4 to 158°F / -20 to 70°C |
| Operating Humidity | 10 to 90% |
| Operating Temperature | 32 to 122°F / 0 to 50°C |
| AC Input Power | 100 to 240 VAC, 50 / 60 Hz |
| Power Draw | 24.2 W |
| Memory | 512 MB |
| Processor | 800 MHz ARM |
| Flash Memory | 256 MB |
| Priority Queues | 8 |
| Layer Services Supported | Layer 2 Support, Layer 3 Support |
| Switching Bandwidth | 17.6 Gb/s |
| Forwarding Rate | 13.1 Mpps |
| Supported IEEE Standards | 802.1d, 802.1p, 802.1q, 802.1q/p, 802.1s, 802.1w, 802.1x, 802.3, 802.3ab, 802.3ad, 802.3u, 802.3x, 802.3z |
| RFC | RFC 768<br />RFC 783<br />RFC 791<br />RFC 792<br />RFC 793<br />RFC 813<br />RFC 826<br />RFC 854<br />RFC 855<br />RFC 856<br />RFC 858<br />RFC 879<br />RFC 894<br />RFC 896<br />RFC 919<br />RFC 920<br />RFC 922<br />RFC 950<br />RFC 951<br />RFC 1042<br />RFC 1071<br />RFC 1123<br />RFC 1141<br />RFC 1155<br />RFC 1157<br />RFC 1213<br />RFC 1215<br />RFC 1286<br />RFC 1350<br />RFC 1442<br />RFC 1451<br />RFC 1493<br />RFC 1533<br />RFC 1541<br />RFC 1542<br />RFC 1573<br />RFC 1624<br />RFC 1643<br />RFC 1700<br />RFC 1757<br />RFC 1867<br />RFC 1907<br />RFC 1981<br />RFC 2011<br />RFC 2012<br />RFC 2013<br />RFC 2030<br />RFC 2131<br />RFC 2132<br />RFC 2233<br />RFC 2460<br />RFC 2576<br />RFC 2616<br />RFC 2618<br />RFC 2665<br />RFC 2666<br />RFC 2674<br />RFC 2737<br />RFC 2819<br />RFC 2863<br />RFC 3164<br />RFC 3411<br />RFC 3412<br />RFC 3413<br />RFC 3414<br />RFC 3415<br />RFC 3416<br />RFC 3484<br />RFC 3595<br />RFC 4007<br />RFC 4291<br />RFC 4293<br />RFC 4330<br />RFC 4443<br />RFC 4861<br />RFC 4862<br />RFC 5214 |
| SNMP Support | 1, 2c, 3 |
| Security Features | DoS Attack Prevention<br>RADIUS Authentication<br>Storm Control |
| MAC Address Table Size | 8K |
| Jumbo Frames Support | 9000 Bytes |
| Transmission Method | Store-and-Forward |
| Queuing | Strict Priority, Weighted Round Robin (WRR) |
| Supported Protocols | Head-of-Line (HOL) Blocking<br>IGMP Snooping<br>IPv4<br>IPv6<br>Link Aggregation |
| Indicator Lights | Link/Activity, PoE, Speed, System |
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