Juniper SCBE2-MX-BB Enhanced Switch Control Board High-Capacity Fabric and Control Plane Engine for MX-Series Routers The Juniper Networks SCBE2-MX-BB Enhanced Switch Control Board is a high-performance fabric and control plane module designed for Juniper MX240, MX480, and MX960 3D Universal Edge Routers. Acting as the central intelligence of the chassis, this advanced SCB integrates switch fabric, routing engine support, and power distribution, enabling scalable, high-capacity networking for modern service provider and enterprise environments. Engineered to support next-generation bandwidth demands, the SCBE2-MX-BB delivers up to 160 Gbps per slot, with the ability to scale up to 340 Gbps per slot when deployed with high-performance Modular Port Concentrators such as the MPC5E series. This enhanced throughput makes it an essential upgrade for networks deploying 10GbE, 40GbE, and 100GbE interfaces, ensuring optimal performance across high-density configurations. Built on a Trio-optimized switching fabric architecture, the SCBE2 enables efficient communication between the routing engine and packet forwarding engines (PFEs), ensuring low-latency data processing and reliable packet delivery. It also supports advanced Routing Engines (RE-S-1800 and RE-S-x6 series), providing a powerful and flexible control plane for complex routing environments. For high availability, the SCBE2 supports 1+1 redundancy, allowing dual modules to operate in an active/active configuration. This setup not only increases total fabric bandwidth but also ensures seamless failover, minimizing downtime in mission-critical networks. Additionally, the inclusion of Stratum 3 clocking and synchronization makes it suitable for time-sensitive applications such as mobile backhaul and telecom networks. Designed for long-term scalability and investment protection, the Juniper SCBE2-MX-BB allows existing MX Series chassis to be upgraded to modern performance standards without requiring a full hardware replacement. Whether deployed in service provider cores, ISP edge networks, or large-scale enterprise infrastructures, this enhanced switch control board delivers the performance, reliability, and scalability needed for next-generation networking. Product Specifications – Juniper Networks SCBE2-MX-BB Enhanced Switch Control Board (Base Bundle) for MX240, MX480, MX960 CLICK HERE FOR DATA SHEET Specification Details Product Name Juniper Networks SCBE2-MX-BB Enhanced Switch Control Board (Base Bundle) Manufacturer Juniper Networks Part Number SCBE2-MX-BB Product Type Switch Control Board (SCB) / Fabric and Control Plane Module Compatible Routers Juniper MX240, MX480, MX960 Fabric Type Trio-optimized next-generation switching fabric Throughput per Slot 160 Gbps (Standard) Maximum Throughput per Slot Up to 340 Gbps (with high-speed MPCs and redundancy) System Role Switch fabric, control plane integration, and power distribution Routing Engine Compatibility RE-S-1800, RE-S-x6 series Redundancy Support 1+1 redundant SCB configuration Fabric Redundancy Mode Active/Active operation with dual SCBs High Availability Seamless failover with dual SCBs installed Clocking Stratum 3 precision clocking and synchronization Synchronization Features Supports timing for mobile backhaul and time-sensitive applications Control Plane Integration Hosts Routing Engine (RE) for centralized control Packet Forwarding Integration Interfaces with PFEs on MPC line cards MPC Compatibility Supports MPC4E, MPC5E, MPC7E and other high-capacity MPCs Backplane Connectivity High-speed internal fabric interconnect Power Distribution Integrated within SCB module Form Factor Modular card for dedicated SCB/RE slot Hot-Swappable Yes Cooling Chassis-based cooling system Operating System Junos OS Deployment Type Service provider edge, core routing, high-capacity aggregation Upgrade Capability Enables performance upgrade of existing MX chassis Scalability Supports high-density 10GbE, 40GbE, and 100GbE deployments Reliability Carrier-grade redundancy and failover architecture Use Cases Telecom backbone, ISP edge routing, mobile backhaul, large-scale enterprise networks FAQs: Q1. What is the difference between the SCBE and the SCBE2? The SCBE2 offers double the bandwidth per slot (160 Gbps vs 80 Gbps) and includes a more advanced fabric chipset designed to support the higher throughput requirements of 100G-capable MPCs. Q2. Does this bundle include the Routing Engine (RE)? No. The "BB" (Base Bundle) part number refers to the Switch Control Board itself. The Routing Engine (e.g., RE-S-1800-8G) must be purchased and installed separately into the SCBE2. Q3. How many SCBE2 modules do I need? For a functional router, at least one SCB is required. However, for full fabric redundancy and to achieve the maximum throughput of high-density line cards, two SCBE2 modules are highly recommended. Q4. Is the SCBE2 compatible with older DPC cards? While primarily designed for Trio-based MPCs, the SCBE2 maintains backward compatibility with most legacy Dense Port Concentrators (DPCs), though performance will be limited to the DPC's native capacity. Q5. Can I mix an SCBE and an SCBE2 in the same chassis? No. To ensure fabric stability and predictable performance, all Switch Control Boards within a single MX chassis must be of the same type.
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