SCBE2-MX-S

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:

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MX960—CHAS-BP3-MX960-S

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MX480—CHAS-BP3-MX480-S

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MX240—CHAS-BP3-MX240-S

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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.