Cisco Catalyst 4948 10-Gigabit Ethernet Switch

The Cisco WS-C4948-10GE is a managed, Layer 2/Layer 3, fixed-configuration switch designed for rack-optimized server environments, offering low-latency, wire-speed performance. It is built on the Cisco Catalyst 4500 Series hardware and software architecture, providing high performance and scalability for demanding network infrastructures.

### Technical Specifications

* **Manufacturer:** Cisco Systems, Inc.
* **Product Line:** Cisco Catalyst
* **Product Series:** C4948
* **Product Model:** 4948-10GE
* **Device Type:** Switch – 48 ports – managed
* **Form Factor:** 1RU Rack-mountable
* **Dimensions (W x D x H):** 17.3 in x 16.1 in x 1.7 in (43.9 cm x 41 cm x 4.3 cm)
* **Weight:** Approximately 25 lbs (11.3 kg)

### Interfaces and Ports

* **Total Number of Network Ports:** 48
* **Number of Network (RJ-45) Ports:** 48 x 10/100/1000BASE-T (Gigabit Ethernet)
* **Uplink Ports:** 2 x X2-based 10 Gigabit Ethernet ports
* **Management Ports:**
* 1 x RJ45 Serial Console port
* 1 x Gigabit Management port
* 1 x 10/100 RJ45 management port

### Media and Performance

* **Media Type Supported:** Twisted Pair (Copper), Fiber (for X2 optics)
* **Ethernet Technology:** Gigabit Ethernet (10/100/1000BASE-T)
* **10 Gigabit Ethernet:** Supported via X2 modules
* **Switching Capacity:**
* 136 Gbps (non-stacked)
* 176 Gbps (with stacking, potentially)
* 320 Gbps (potentially with stacking or specific configurations)
* 352 Gbps (with stacking)
* **Forwarding Rate (Throughput):**
* 102 million packets per second (Mpps)
* 72 Mpps (potentially for Layer 2 only)
* 250 Mpps for IPv4 / 125 Mpps for IPv6 (potentially in some software versions)
* **MAC Address Table Size:** 55,000 entries (Some sources indicate 64,000 entries of TCAM for QoS/security)
* **Latency:** Low-latency
* **Layer Supported:** Layer 2 to Layer 4

### I/O Expansion Slots

* **Number of Total Expansion Slots:** 2
* **Expansion Slot Type:** X2

### Management and Protocols

* **Manageable:** Yes
* **Management Protocols:** SNMPv1, v2, and v3; Web-based management; Telnet client; BOOTP; Trivial File Transfer Protocol (TFTP); Secure Shell (SSH)
* **VLAN Support:** IEEE 802.1Q VLANs
* **Active VLANs:** 2048
* **VLAN IDs:** 4096
* **Quality of Service (QoS):**
* Supports 8 hardware queues per port
* Classification, marking, policing, shaping
* Weighted Tail Drop (WTD)
* Low-Latency Queuing (LLQ)
* Hierarchical QoS (HSEQoS)
* **Security Features:**
* 802.1X port authentication
* Dynamic ARP Inspection
* DHCP snooping
* IP Source Guard
* Access Control Lists (ACLs)
* Control Plane Policing (CoPP)
* Secure Shell (SSH)
* MAC address filtering
* Security policy compliance and enforcement

### Electrical and Power

* **Power Supplies:** Optional internal AC or DC 1+1 hot-swappable power supplies
* **Included Power Supply:** 1x AC PWR-C49-300AC
* **Power Supply Rating:** 300W AC (for included supply), 350W AC (for others)
* **Redundant Power Supply Supported:** Yes
* **Energy Efficiency:** Meets IEEE 802.3az Energy Efficient Ethernet standards; features variable-speed fans and low-power ASICs for reduced energy consumption (up to 50%)

### Physical and Environmental

* **Fan Module:** 1x Fan Assembly included
* **Fan Tray:** Hot-swappable fan tray with redundant fans
* **Rack Units:** 1 RU
* **Compliant Standards:** NEBS level 3, FCC Class A certified, ETSI, CISPR 22 Class A, EN 60950, EN 61000-3-2, VCCI Class A ITE, IEC 60950, EN 61000-3-3, EN55024, EN55022 Class A, UL 60950, AS/NZ 3548 Class A, FCC Part 15, ICES-003 Class A

### Software and Compatibility

* **Switch Software:** IP Base Image, Enterprise Services Image
* **Cisco IOS Software:** Compatible with Cisco IOS Release 12.2(33)SXH or later; minimum requirement of Cisco IOS® Software Release 12.2(20)EWA or later

### Redundancy and High Availability

* **Hot-swappable Power Supplies:** Yes
* **Hot-swappable Fan Tray:** Yes
* **Virtual Router Redundancy Protocol (VRRP):** Supported
* **Nonstop Forwarding with Stateful Switchover (NSF/SSO):** Supported

### Use Cases

* Data center top-of-rack (ToR) aggregation
* High-density aggregation of high-performance servers and workstations
* Enterprise campus wiring closets and distribution layers
* Low-density, multilayer aggregation of high-performance servers
* Small-to-medium core networks requiring high port density and 10 Gbps uplinks

Why Choose Aumictech for Cisco WS-C4948-10GE?
At Aumictech, we specialize in supplying high-end networking equipment. Whether you need robust data center aggregation, scalable enterprise connectivity, or reliable low-latency switching, our team ensures the Cisco WS-C4948-10GE delivers maximum performance for your application.