Cisco Catalyst 4948 is an optimized high-performance switch designed for server cluster racks. It features low latency, line-speed forwarding, and multi-layer aggregation, providing reliability and maintainability. It supports 48 10/100/1000BASE-T ports and 4 1000BASE-X optical interfaces. It has rich network traffic security features and supports SSH and SNMPv3 protocols.
The Cisco Catalyst 4948 is designed for high‑performance server and workstation aggregation. It offers 48 line‑rate 10/100/1000BASE‑T Ethernet ports and four optional 1000BASE‑X SFP ports, all backed by a 96 Gbps non‑blocking switching matrix and a 72 Mpps forwarding rate for layer‑2 to layer‑4 traffic.
The switch includes optional 1+1 hot‑swap redundant AC or DC power supplies, a hot‑swap fan tray with four redundant fans, and extensive security and management features such as ACLs, QoS, SSH, SNMPv3, and RADIUS/TACACS+ support. It also provides robust layer‑2/3 capabilities, including support for up to 2,048 active VLANs, 4,096 VLAN IDs, and a rich set of routing protocols. This manual is written in Chinese.
| Ethernet ports | 48 × 10/100/1000BASE‑T, 4 × SFP |
|---|---|
| Switching capacity | 96 Gbps |
| Forwarding rate | 72 Mpps |
| Redundant power supplies | Optional internal AC or DC 1+1 hot‑swap |
| Redundant fans | Hot‑swap fan tray with 4 fans |
| MAC address table size | 32,768 entries |
| VLAN support | 2,048 active VLANs, 4,096 VLAN IDs |
| ACL / QoS entries | 32,000 entries |
| CPU speed | 266 MHz |
| Flash memory | 64 MB |
| SDRAM | 256 MB |
| Packet latency (64‑byte) | 6 ms |
It provides 48 line‑rate 10/100/1000BASE‑T ports and four optional 1000BASE‑X SFP ports.
Yes, it offers optional internal AC or DC 1+1 hot‑swap redundant power supplies.
The switch has a 96 Gbps non‑blocking switching matrix.
The device supports SSH (v1 and v2) and SNMPv3 for secure remote access and management.