Cisco ASR 900 A900-RSP3C-400-S Cisco ASR 900 series module / router
Brand: Cisco | Category: Network Equipment
SKU: CSC-A900-RSP3C-400-S | Part #: A900-RSP3C-400-S | MPN: A900-RSP3C-400-S
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About the Cisco ASR 900 A900-RSP3C-400-S Cisco ASR 900 series module / router
The Cisco ASR 900 A900-RSP3C-400-S is a Route Switch Processor module designed to deliver 400 Gbps system throughput within the Cisco ASR 900 Series portfolio. This RSP module serves as the control plane and forwarding engine for compatible Cisco ASR 903 and ASR 907 chassis platforms, running Cisco IOS XE operating system software. The A900-RSP3C-400-S combines high-performance packet forwarding with enterprise-grade routing intelligence, making it the intelligent core of mid-to-large scale service provider and enterprise network deployments.
Network engineers and enterprise IT procurement teams select this module for its comprehensive Layer 2 and Layer 3 protocol support, including IPv4, IPv6, OSPFv2/v3, IS-IS, and BGP routing, alongside Carrier Ethernet (MEF), VPLS, and EoMPLS switching capabilities. The processor supports advanced MPLS features including Segment Routing, L2VPN/VPLS, and L3VPN, enabling flexible service delivery across converged networks. High availability is guaranteed through Stateful Switchover (SSO), Non-Stop Forwarding (NSF), and In-Service Software Upgrade (ISSU) capabilities, combined with dual RSP redundancy support within compatible chassis. Precision timing and synchronization leverage IEEE 1588v2 PTP and SyncE (ITU-T G.8261/G.8262) standards, critical for telecommunications and financial services operations. Hierarchical QoS with traffic shaping and policing ensures predictable application performance across diverse workloads.
Organizations requiring carrier-grade routing performance and carrier Ethernet services in the ASR 900 ecosystem depend on the A900-RSP3C-400-S to deliver mission-critical packet processing and control plane functionality. The module's Standard (S) feature set provides the base Cisco IOS XE capability set while maintaining full regulatory compliance with Cisco ASR 900 Series certifications. To discuss pricing, availability, and integration with your network infrastructure, submit a Request for Quote through Omnixon Global today.
Technical Specifications
| Brand | Cisco |
| Category | Network Equipment |
| SKU | CSC-A900-RSP3C-400-S |
| Part Number | A900-RSP3C-400-S |
| Condition | New |
| Form Factor | Rack-Mount |
| Manufacturer Part Number | A900-RSP3C-400-S |
| Product Series | Cisco ASR 900 Series |
| Module Type | Route Switch Processor (RSP) |
| Compatible Platforms | Cisco ASR 903, ASR 907 |
| System Throughput | 400 Gbps |
| Operating System | Cisco IOS XE |
| MPLS Support | Yes — MPLS, Segment Routing, L2VPN/VPLS, L3VPN |
| Timing & Synchronization | IEEE 1588v2 PTP (Precision Time Protocol), SyncE (ITU-T G.8261/G.8262) |
| High Availability | Stateful Switchover (SSO), Non-Stop Forwarding (NSF), ISSU |
| Redundancy | Supports dual RSP redundancy within compatible chassis |
| Layer 2 Protocols | Carrier Ethernet (MEF), VPLS, EoMPLS, Q-in-Q, 802.1Q |
| Layer 3 Protocols | IPv4, IPv6, OSPFv2/v3, IS-IS, BGP, RSVP-TE |
| QoS | Hierarchical QoS (HQoS), traffic shaping and policing |
| Form Factor | Module (line card) for ASR 900 chassis |
| Product Family Role | Control plane and forwarding engine RSP module |
| Regulatory Compliance | Compliant with standard Cisco ASR 900 Series regulatory certifications |
| Software Feature Set | Standard (S) — base IOS XE feature set |
Frequently Asked Questions about Cisco ASR 900 A900-RSP3C-400-S Cisco ASR 900 series module / router
What does the Cisco ASR 900 A900-RSP3C-400-S Cisco ASR 900 series module / router do?
The Cisco ASR 900 A900-RSP3C-400-S Cisco ASR 900 series module / router is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
Is the Cisco ASR 900 A900-RSP3C-400-S Cisco ASR 900 series module / router compatible with my infrastructure?
The Cisco ASR 900 A900-RSP3C-400-S Cisco ASR 900 series module / router interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.