Cisco 28-1657-04 Route Switch Processor 4+

Overview
The Cisco Route Switch Processor 4+ (part number 28-1657-04) is a high-performance line card designed to deliver robust routing and switching capabilities for enterprise and service provider networks. Engineered for scalability and reliability, this processor integrates advanced packet forwarding, deep buffering, and comprehensive security features to support demanding traffic loads and complex network topologies.

Key Features

• Multi-core architecture optimized for high throughput and low latency
• Supports up to 10 Gbps of aggregate bandwidth per slot
• Integrated hardware acceleration for QoS, ACLs and encryption
• Redundant power and fan modules for continuous operation
• Modular design compatible with Cisco Catalyst and Nexus platforms
• Enhanced telemetry and monitoring via Cisco IOS XE

Technical Specifications

• Processor type: 4+ core ASIC based engine
• Maximum forwarding rate: 150 million packets per second (mpps)
• Memory: 8 GB DDR4, 2 GB high-speed cache
• Interfaces: 4 x 10 Gigabit Ethernet ports, 2 x 1 Gigabit Ethernet management ports
• Power consumption: 120 watts typical, 150 watts maximum
• Operating temperature: 0 to 55 degrees Celsius
• Dimensions: 1.75 in height (U), 17.5 in depth
• Compliance: RoHS, FCC Part 15 Class A

Applications
The Route Switch Processor 4+ is ideal for:

• Enterprise campus cores requiring high availability and fast convergence
• Data center leaf and spine deployments that need scalable bandwidth
• Service provider edge routers handling mixed traffic types and VPN services
• Branch office aggregation points that benefit from integrated security and QoS
• Network virtualization environments that demand consistent performance across virtual instances

By integrating the Cisco Route Switch Processor 4+, organizations can simplify network architecture, improve performance, and future-proof their infrastructure for emerging applications and higher traffic demands.