| Model | WS-C4948-S |
| Ports | 48 Gigabit Ethernet ports |
| Switching Capacity | 96 Gbps |
| Forwarding Rate | 72 Mpps |
| Layer 2 Features | VLANs, Spanning Tree Protocol, Port Aggregation Protocol, Link Aggregation Control Protocol, VLAN Trunking Protocol |
| Layer 3 Features | Routing protocols (OSPF, EIGRP, BGP), Multicast Routing (PIM-SM, PIM-DM, IGMP), QoS, Access Control Lists (ACLs), Dynamic Host Configuration Protocol (DHCP) |
| Uplink Interfaces | 4 x 1 Gigabit Ethernet SFP ports |
| Redundancy | 1+1 power supply redundancy |
| Power Supply Options | AC or DC power supplies, up to 2 power supplies per chassis |
| Management Interface | 1 x RJ-45 console port, 1 x USB port |
| Management Protocols | SNMP v1/v2c/v3, RMON, Telnet, SSH, CLI, HTTP, HTTPS |
| Security | IEEE 802.1X, ACLs, SSH v1/v2, SSL, TACACS+, RADIUS |
| VLAN Support | Up to 4,094 VLANs |
| Quality of Service (QoS) | 4 hardware queues per port, support for CoS and DSCP |
| Multicast Routing Protocols | PIM-SM, PIM-DM, IGMP v1/v2/v3 |
| Dimensions | 43.9 cm x 44.5 cm x 4.4 cm |
| Weight | 6.8 kg |
| Operating Temperature | 0°C to 40°C |
| Operating Humidity | 10% to 90% (non-condensing) |
| MTBF | 172,000 hours |
| Rack Mountable | Yes |
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