SCBE2-MX 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.

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.

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.

OK/FAIL, FABRIC-ACTIVE, FABRIC-ONLY LEDs

Indicate the status of the SCBE2-MX. See SCBE2-MX LEDs.

XGE ports

Two Ethernet ports, labeled XGE, provide 10 GbE/1 GbE SFP+ interfaces. These ports also are connected to the Ethernet control switch which limits the traffic for the 10 GbE port and provides security to prevent unwanted access to the control plane via the external ports.

XGE port LEDs

Two LINK LEDs indicate the status of the XGE ports. See SCBE2-MX LEDs.

EXT CLKport

The RJ-45 external clock interface port, labeled EXT CLK, receives GPS and PPS timing from the GPS external interface.

EXT CLK port LEDs

Three LEDs labeled BITS, GPS, and UTI indicate the external clocking interface status. See SCBE2-MX LEDs.

RE-S-X6-64G

RE-S-X6-128G

110 W

RE-S-1300 (EOLed)

RE-S-2000 (EOLed)

RE-S-1800 (all variants)

RE-S-2000-4096 (EOL’d)

90 W