The Juniper Networks CHAS-BP3-MX960-S MX960 Chassis is a next-generation, high-capacity routing platform designed to meet the demands of service provider cores, edge networks, and large-scale data center interconnect (DCI) environments. Built with the enhanced BP3 (Backplane 3) architecture, this chassis delivers the power, scalability, and reliability required to support modern high-bandwidth applications, including 100GbE and 400GbE deployments.
Engineered as the physical foundation of the MX960 3D Universal Edge Router, the CHAS-BP3-MX960-S features a 16RU form factor with 14 total slots, including 11 dedicated line card slots, 2 switch control board (SCB) slots, and 1 multi-purpose slot. This flexible architecture enables high-density configurations, supporting hundreds of 10GbE ports or dozens of 100GbE/400GbE interfaces within a single chassis.
The advanced BP3 backplane is specifically designed to handle the increased power and high-speed signaling requirements of next-generation Modular Port Concentrators such as MPC7E, MPC10E, and MPC11E, delivering up to 12 Tbps of aggregate system capacity. This ensures seamless scalability for growing network demands while maintaining optimal performance and efficiency.
Built for carrier-grade reliability, the chassis supports N+1 power redundancy and 1+1 control plane/fabric redundancy, ensuring continuous operation and “five-nines” availability (99.999% uptime). Its high-capacity, side-to-side cooling system is optimized for advanced Trio ASIC-based hardware, maintaining thermal stability even under full-load conditions.
The CHAS-BP3-MX960-S also offers strong investment protection, with backward compatibility for many existing MX960 components while providing the infrastructure needed for future high-speed upgrades. Whether deployed in telecom backbones, ISP networks, or hyperscale data centers, this chassis delivers unmatched scalability, performance, and reliability for next-generation networking environments.
Product Specifications – Juniper Networks CHAS-BP3-MX960-S Next-Generation MX960 Chassis (BP3 Backplane)
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| Specification |
Details |
| Product Name |
Juniper Networks CHAS-BP3-MX960-S MX960 Chassis (BP3 Backplane) |
| Manufacturer |
Juniper Networks |
| Part Number |
CHAS-BP3-MX960-S |
| Product Type |
Router Chassis (3D Universal Edge Router Platform) |
| Router Series |
Juniper MX960 Series |
| Form Factor |
16 Rack Units (16RU) |
| Total Slots |
14 Slots |
| Slot Breakdown |
11 × Line Card Slots, 2 × SCB Slots, 1 × Multi-purpose Slot |
| Backplane Type |
BP3 (Backplane 3 – Next Generation) |
| Backplane Capacity |
Supports up to 12 Tbps aggregate system capacity |
| Compatible Line Cards |
MPC4E, MPC5E, MPC7E, MPC8E, MPC9E, MPC10E, MPC11E |
| Compatible SCBs |
SCB, SCBE, SCBE2, SCBE3 |
| Routing Engine Support |
RE-S Series and RE-MX Series |
| Cooling System |
High-capacity, redundant fan trays |
| Airflow Direction |
Side-to-Side cooling |
| Power Supply |
AC or DC Power Supplies (N+1 redundancy supported) |
| Redundancy |
1+1 SCB redundancy, N+1 power redundancy |
| High Availability |
Carrier-grade architecture with full redundancy support |
| Dimensions (H × W × D) |
27.75" × 17.45" × 23.0" |
| Rack Mounting |
Standard 19-inch rack |
| Thermal Design |
Optimized for high-performance Trio ASIC-based line cards |
| Operating Temperature |
0°C to 40°C |
| Storage Temperature |
-40°C to 70°C |
| Scalability |
Supports ultra-high-density 10GbE, 40GbE, 100GbE, and 400GbE deployments |
| Port Density |
Hundreds of 10GbE or dozens of 100GbE/400GbE ports |
| Backward Compatibility |
Supports legacy MX960 components alongside new hardware |
| Deployment Type |
Service provider edge, core routing, data center interconnect (DCI) |
| Reliability |
Designed for "five-nines" (99.999%) uptime |
| Use Cases |
Telecom backbone, ISP infrastructure, hyperscale data centers, cloud networking |
FAQs:
Q1. What is the difference between the standard MX960 chassis and the BP3 version?
The BP3 version features a reinforced and upgraded backplane with improved signal integrity and higher power distribution capabilities. It is required to run the newest, high-power MPCs (like the MPC10E and MPC11E) that the original chassis cannot support.
Q2. Does this part number include the power supplies or fan trays?
The CHAS-BP3-MX960-S is typically the "Spare" chassis. While it includes the backplane and physical frame, the power supplies (PSMs), fan trays, and SCBs are usually ordered separately or as part of a pre-configured bundle.
Q3. How many line cards can I fit in this chassis?
You can install up to 11 line cards (Modular Port Concentrators) in the dedicated slots. If you use a third Switch Control Board for extra fabric bandwidth, you still maintain your 11 line card slots.
Q4. Does it support both AC and DC power?
Yes. The chassis frame is agnostic, but you must install the corresponding AC or DC power distribution assemblies and power supply modules.
Q5. Can I migrate my existing SCBE2 and REs to this chassis?
Yes. The BP3 chassis is compatible with SCBE2, SCBE3, and the RE-S-1800/RE-S-x6 series Routing Engines, allowing for a phased migration of your existing hardware.
