Cisco CRS-X Modular Services Card (400G) — High-Performance Plug-in Module for Cisco CRS-X Data Networking

The Cisco CRS-X Modular Services Card (400G) is a purpose-built plug-in expansion module designed to extend the capabilities of the Cisco CRS-X data networking platform. This 400G service card empowers service providers and large enterprises to scale capacity, accelerate service delivery, and deploy advanced features without replacing the core chassis. Built for high availability and intelligent traffic handling, the CRS-X Modular Services Card adds flexible, on-demand functionality to support increasingly complex networks—from core backbones to data centers and edge deployments. It integrates with Cisco IOS XR, Cisco DNA Center, and Cisco Prime to provide unified management, policy-based automation, and end-to-end visibility, helping operators simplify lifecycle management while preserving performance and reliability in mission-critical environments. With its modular architecture, operators can tailor their CRS-X deployment to evolving business needs, adding encryption, firewall, DPI, VPN, QoS, and other application-aware services where they’re most needed. The result is a scalable, secure, and efficient data networking solution that aligns with modern digital transformation goals.

• High-throughput 400G capability: The modular service card is engineered to deliver up to 400 gigabits per second of aggregate throughput. This enables rapid provisioning of bandwidth-intensive services and supports growing traffic demands across core, metro, and data-center networks. By distributing processing across the CRS-X platform, networks experience lower latency, improved packet handling, and more consistent performance under peak loads. This throughput flexibility is ideal for service chains, multi-tenant environments, and dynamic traffic engineering that require consistent, predictable performance.
• Modular plug-in expansion for CRS-X: As a plug-in expansion module, it complements your existing CRS-X deployment without necessitating a full platform replacement. The modular design supports on-demand service deployment and feature expansion, allowing operators to scale capacity gracefully as traffic patterns shift. This approach reduces total cost of ownership by extending hardware longevity and enabling targeted feature enablement based on real-world utilization and business priorities.
• Comprehensive service capabilities: The 400G card enables a broad range of data-networking services to be deployed close to where they’re needed. Expect robust security features such as encryption for data-in-motion, advanced firewall capabilities, and VPN support, along with application-aware inspection (DPI), quality of service (QoS), and policy-based routing. These capabilities help enforce security, optimize network performance, and ensure consistent experiences for enterprise applications, multimedia streams, and critical workloads even in congested or multi-tenant environments.
• Reliability and high availability: Built to meet carrier-grade requirements, the CRS-X modular card emphasizes reliability through a hot-swappable design and careful attention to service continuity. Operators benefit from minimized maintenance windows, reduced mean time to repair, and seamless service continuity during upgrades. The module is designed to work within the CRS-X chassis ecosystem, preserving predictable performance while allowing rapid replacement or upgrade of individual components without a full system downtime.
• Seamless Cisco ecosystem compatibility: This card is engineered to integrate smoothly with Cisco IOS XR, Cisco DNA Center, and Cisco Prime for centralized management, orchestration, policy enforcement, and telemetry. The module supports Cisco’s lifecycle management tools, enabling streamlined configuration, monitoring, and capacity planning. With consistent interfaces and familiar workflows, operators can accelerate deployment, maintain uniform security policies, and achieve end-to-end visibility across the CRS-X deployment—reducing operational overhead and accelerating time-to-value.

Technical Details of Cisco CRS-X Modular Services Card (400G)

• Product family: Cisco CRS-X Modular Services Card (400G)
• Platform compatibility: Cisco CRS-X router family
• Throughput: Up to 400 Gbps aggregated
• Module type: Plug-in expansion card for CRS-X chassis
• Core capabilities: Encryption, firewall, VPN, DPI, QoS, and policy-based routing (licensing may apply)
• Deployment model: Supports flexible service chaining and edge-to-core service placement within the CRS-X environment
• Management integration: Cisco IOS XR, Cisco DNA Center, Cisco Prime for configuration, monitoring, and lifecycle management
• Compatibility considerations: Requires a compatible CRS-X chassis with an available service-slot and appropriate licensing for advanced features

How to install Cisco CRS-X Modular Services Card (400G)

• Power down the CRS-X chassis and disconnect from power before installation to prevent static discharge or equipment damage.
• Access the chassis and locate an available service-slot designated for a modular services card within the CRS-X platform.
• Remove any blank module or existing card from the target slot, inspect the slot for debris, and verify the slot is clean and aligned for insertion.
• Align the new CRS-X Modular Services Card with the slot guides and carefully insert until the module seats firmly. Ensure the retention mechanism locks the card in place to prevent movement during operation.
• Reconnect any required interfaces, cables, or licensing components per Cisco installation guidelines, ensuring cables are routed cleanly and not stressed.
• Power on the chassis, verify the module is detected in the management interface, and run basic health checks to confirm proper function and license status. Monitor the system for any alerts or anomalies and validate service availability after activation.

Frequently asked questions

• Q: What is the Cisco CRS-X Modular Services Card (400G)? A: It is a plug-in expansion module designed for the Cisco CRS-X routing platform, enabling high-capacity 400G services and a broad set of data-networking features without replacing the core chassis.
• Q: How much throughput does the card support? A: The card supports up to 400 Gbps of aggregated throughput, enabling scalable bandwidth for core networks, data centers, and edge deployments while maintaining low latency and high performance.
• Q: Is the module hot-swappable? A: Yes. The CRS-X Modular Services Card is designed for hot-swappable operation within a compatible CRS-X chassis, allowing maintenance or upgrades without taking the entire system offline.
• Q: What software or licenses are required? A: The full feature set may require appropriate Cisco IOS XR software and licenses for security, DPI, encryption, and advanced services. Check Cisco licensing to determine exact entitlements for your deployment.
• Q: How should I manage and monitor the card? A: Use Cisco IOS XR, Cisco DNA Center, or other supported Cisco management tools for configuration, policy enforcement, telemetry, and performance monitoring across the CRS-X deployment.