Juniper Networks SCBE2-MX Enhanced MX Switch Control Board for MX480 MX960

Description

Juniper Networks
SCBE2-MX Enhanced MX Switch Control Board for MX480 MX960
SCBE2-MX Features
Feature
Description
Centralized Stratum 3 Clock Module
Provides a central clocking module and a centralized clocking architecture that supports clock cleanup and distribution. The Stratum 3 clock module performs clock monitoring, filtering, and holdover at a centralized chassis location.
External Clocking Interface (
EXT CLK
)
Allows BITS, GPS, or UTI clock source input to the centralized timing circuit. Also allows centralized timing to be output to BITS or GPS.
Cross-Coupling of Clocking Input
You can configure the system such that one SCBE2-MX supports a GPS clocking interface, and the other SCBE2-MX supports a BITS clocking interface. This requires an enhanced midplane:
MX960—CHAS-BP3-MX960-S
MX480—CHAS-BP3-MX480-S
MX240—CHAS-BP3-MX240-S
Improved Fabric Performance
Provides improved fabric performance for high-capacity line cards using the third generation fabric XF2 chip (MPC4E, MPC5E, MPC2/3 NG, and MPC7E).
Software Control Plane Features
Supports Dynamic Multicast Replication (DMR), Graceful Routing Engine Switchover (GRES), Non-Stop Routing (NSR), and Non-Stop Bridging (NSB) to ensure Routing Engine failures do not impact transit traffic while the backup Routing Engine becomes the new primary.
Increased Bandwidth
Provides up to 480 Gbps (non-redundant fabric configuration); 340 Gbps (redundant fabric configuration)
In-system removable Routing Engine
The in-system Routing Engine can support any new Routing Engine that conforms to the standard modular Routing Engine I/O interface and form factor.
Note:
When a Routing Engine is not installed in the SCBE2-MX, you need to cover the empty slot with a blank panel.
Hot-Swappable
The SCBE2-MX and associated Routing Engine assembly are hot-swappable and do not require downtime to replace. The system software provides a mechanism to shut down, or acquiesce the Routing Engine/SCBE2-MX. The system software also provides a method to reset or reboot the Routing Engine/SCBE2-MX. This support is provided via CLI commands, and various hardware support circuits.
Note:
The Routing Engine must be brought offline prior to removal to avoid possible corruption of the hard drive.
Redundancy
With three SCBE2-MX’s installed, the MX960 router provides 2 + 1 redundancy. With two SCBE2-MX’s installed, the MX240 router and MX480 router provide 1 + 1 redundancy.
1000Base-T Ethernet Controller
Provides a 1 Gbps Ethernet link between the Routing Engines.
Hitless Operation
Allows you to upgrade programmable parts and reboot with “hitless” operation if the redundant SCBE2-MX’s are inserted in the system and are operational.