WS-X6748-SFP Cisco Catalyst Managed Switch with 48 Ports

Overview of Cisco WS-X6748-SFP Managed Switch

The Cisco WS-X6748-SFP Catalyst switch module is a high-density, enterprise-grade networking component engineered to deliver scalable, reliable, and high-performance Gigabit Ethernet connectivity. Designed for modular Catalyst chassis environments, this 48-port SFP (mini-GBIC) switch module is optimized for data centers, enterprise backbone networks, and high-capacity distribution layers requiring efficient fiber-based networking solutions.

General Information

• Manufacturer: Cisco 
• Part Number: WS-X6748-SFP
• Product Type: Catalyst Managed Switch Module
• Port Density: 48 x SFP (Small Form-Factor Pluggable)

Technical Specifications

• Data Rate: 1 Gbps per Gigabit Ethernet port
• Total Throughput (CEF): Up to 720 Gbps system performance
• Packet Forwarding Rate: Up to 30 Mpps per system
• Enhanced Performance (dCEF Upgrade): Up to 48 Mpps

Buffer and Queue Management

• Receive Buffer per Port: 166 KB
• Transmit Buffer per Port: 1.17 MB
• Scheduling Algorithm: Deficit Weighted Round Robin (DWRR)

Expansion and Hardware Design

• Expansion Slots: 48 x SFP (mini-GBIC) interfaces
• Daughter Cards: Not supported
• Architecture: Modular Catalyst switching design

Enterprise and Data Center Applications

• High-performance enterprise backbone networks
• Data center aggregation and distribution layers
• Core switching infrastructure for large organizations
• Carrier-grade network deployment environments

Network Management Compatibility

• Compatible with CiscoWorks network management platform
• Centralized monitoring and configuration support
• Enterprise-grade administrative control tools

Supported Network Protocols

• SNMP v1 (Simple Network Management Protocol)
• SNMP v2 for enhanced monitoring capabilities
• SNMP v3 for secure network management

RMON (Remote Monitoring) Support

• RMON statistics collection
• Historical performance tracking
• Alarm-based monitoring
• Event reporting and diagnostics

Operational Reliability

• Mean Time Between Failures (MTBF): Approximately 7 years
• Engineered for continuous enterprise operation
• Optimized thermal and electrical stability design

Environmental and Physical Specifications

Operating Conditions

• Minimum Operating Temperature: 32°F (0°C)
• Maximum Operating Temperature: 104°F (40°C)
• Humidity Range: 10% to 90% non-condensing

Altitude Tolerance

• Operating Altitude Range: -196.85 ft to 13,123.36 ft
• Suitable for diverse geographic deployments including high-altitude environments

Supported Catalyst Hardware

• Catalyst 6506 chassis
• Catalyst 6509 chassis
• Catalyst 6509-NEB-A
• Catalyst 6513 chassis

Supported Supervisor Engine

• Compatible with Supervisor Engine 720
• Designed for high-performance Catalyst switching environments

Scalability Advantages

• Supports modular network expansion
• Enables incremental port upgrades without full system replacement
• Ideal for growing enterprise infrastructure demands

Enterprise Networking Benefits

• Improved backbone network performance
• Reduced congestion in high-traffic environments
• Enhanced redundancy and failover capability
• Optimized fiber-optic connectivity infrastructure

Cisco WS-X6748-SFP Managed Switch Overview

High-Performance Modular Switching Fabric Integration

The Cisco WS-X6748-SFP Catalyst Managed Switch with 48 Ports is engineered as a high-density switching module designed for enterprise backbone, aggregation, and campus core environments. It is built to operate within Cisco Catalyst chassis-based platforms, delivering scalable fiber connectivity through Small Form-Factor Pluggable (SFP) interfaces. The architecture is optimized for environments requiring deterministic throughput, low latency switching, and resilient network fabric integration. The module supports advanced Layer 2 and Layer 3 services depending on chassis capabilities and installed supervisor engines, ensuring flexible deployment across evolving enterprise infrastructures.

The switching fabric integration enables seamless communication between multiple line cards and supervisor modules, supporting distributed forwarding and hardware-accelerated packet processing. This design enhances performance stability in large-scale deployments where high traffic volumes and mixed service workloads are common.

48-Port SFP Density and Optical Networking Capabilities

Scalable SFP Transceiver Deployment Model

The WS-X6748-SFP module provides 48 dedicated SFP ports, enabling fiber-optic connectivity for high-speed uplinks, inter-switch links, and data center aggregation layers. Each port supports modular SFP transceivers, allowing network administrators to tailor optical or copper-based connectivity based on distance, bandwidth, and infrastructure requirements.

This flexibility makes the module suitable for both short-range multimode fiber deployments within campus environments and long-range single-mode fiber connections spanning metropolitan area networks. The ability to interchange transceivers provides cost optimization and future-proof scalability, ensuring compatibility with evolving optical standards and network expansion strategies.

Hardware-Assisted Switching and Routing Capabilities

Optimized Traffic Handling for Enterprise Workloads

The Cisco Catalyst WS-X6748-SFP module is designed to support sophisticated Layer 2 switching functions such as VLAN segmentation, spanning tree protocol enhancements, and MAC address learning optimization. At Layer 3, depending on the system configuration, it can support inter-VLAN routing, static routing, and dynamic routing protocols through centralized supervisor processing.

Hardware-based forwarding engines reduce CPU overhead and enhance throughput consistency, enabling efficient packet handling even under high traffic loads. This ensures minimal latency and consistent performance for mission-critical applications such as VoIP, video conferencing, cloud workloads, and real-time analytics systems.

Flexible Network Growth Without Infrastructure Disruption

The WS-X6748-SFP module is fully integrated into Cisco Catalyst modular switching ecosystems, allowing organizations to scale their network infrastructure without replacing existing chassis or core components. This modular approach enables incremental expansion of port density and bandwidth capacity.

Enterprises can deploy multiple modules within a single chassis to achieve high aggregate port counts while maintaining centralized management. This architecture significantly reduces operational complexity and allows IT administrators to expand network capabilities in response to business growth or changing application demands.

High Availability and Redundancy Design Principles

The Cisco WS-X6748-SFP module benefits from the high availability features of Catalyst chassis systems, including redundant supervisor engines, power supplies, and cooling systems. These redundancy mechanisms ensure continuous network operation even during hardware failures or maintenance events.

In enterprise deployments, high availability is essential for minimizing downtime and ensuring service continuity. The module supports stateful failover mechanisms that allow seamless transition between active and standby components without disrupting active network sessions or data flows.

Optimized Data Plane Processing Architecture

Efficient Traffic Distribution Across Ports

The WS-X6748-SFP is optimized for high-throughput environments where large volumes of traffic must be processed with minimal delay. The switching fabric ensures efficient load distribution across ports and line cards, reducing congestion and maximizing utilization of available bandwidth.

This performance efficiency is critical in data center environments, where east-west traffic between servers and storage systems requires consistent low-latency performance. The module’s architecture is designed to maintain stable forwarding rates even during peak utilization periods.

Security Capabilities and Network Protection Mechanisms

The Cisco Catalyst WS-X6748-SFP module supports a comprehensive set of security features designed to protect enterprise networks from unauthorized access and malicious traffic. These include port security, access control lists (ACLs), and VLAN-based segmentation to isolate sensitive network segments.

Additional security capabilities such as control plane policing and traffic filtering enhance protection against denial-of-service attacks and network intrusions. These features are essential for maintaining compliance in regulated industries such as finance, healthcare, and government sectors.

Application-Aware Traffic Handling

Priority-Based Packet Scheduling Mechanisms

The WS-X6748-SFP module supports advanced Quality of Service configurations that allow administrators to prioritize critical traffic types over less time-sensitive data. This is essential in converged networks where voice, video, and data traffic coexist.

QoS policies can be configured to ensure consistent performance for latency-sensitive applications, including VoIP calls and real-time video streaming. Traffic shaping and policing mechanisms further enhance network efficiency by controlling congestion and optimizing bandwidth allocation.

High-Density Fiber Switching for Large-Scale Environments

The Cisco WS-X6748-SFP module is commonly deployed in enterprise campus cores, data center aggregation layers, and service provider edge networks. Its high port density and fiber-based connectivity make it ideal for environments requiring large-scale interconnection between switches, servers, and storage systems.

In campus environments, it functions as an aggregation point for access layer switches, consolidating traffic into high-speed uplinks. In data centers, it supports server connectivity and spine-leaf architectures where predictable latency and high throughput are critical.

Network Management and Operational Control

Cisco IOS-Based Management Integration

The WS-X6748-SFP module is managed through Cisco IOS-based operating systems running on Catalyst supervisor engines. This enables centralized configuration, monitoring, and troubleshooting using standardized command-line interfaces and management tools.

Network administrators can implement automated provisioning workflows, monitor interface statistics, and analyze traffic patterns for optimization. This centralized management approach reduces operational complexity and improves network visibility across large-scale deployments.

Multi-Generation Platform Support

Backward and Forward Compatibility Considerations

The WS-X6748-SFP module is designed for compatibility with multiple Cisco Catalyst chassis and supervisor engine generations, depending on software and hardware configurations. This ensures that enterprises can extend the lifecycle of existing infrastructure while gradually upgrading components.

Interoperability across Catalyst platforms allows organizations to maintain consistent network policies and configurations while scaling infrastructure across multiple sites or data centers.