Scbe2-Mx Features - Juniper MX960 Hardware Manual

Maximum Power
Requirements
SCBE2-MX Cooling
Requirements

SCBE2-MX Features

Feature
Centralized Stratum 3 Clock
Module
External Clocking Interface
(EXT CLK)
Cross-Coupling of Clocking
Input
Improved Fabric
Performance
Software Control Plane
Features
Increased Bandwidth
SCBE2-MX (applies to MX240, MX480, and MX960)
185 W at 55° C
160 W at 40° C
155 W at 25° C
For proper cooling, you must install MX-series high-capacity fan trays in the MX chassis.
Additionally, for the MX960, you must install a high-capacity filter tray.
Description
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.
Allows BITS, GPS, or UTI clock source input to the centralized timing circuit. Also allows
centralized timing to be output to BITS or GPS.
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
Provides improved fabric performance for high-capacity line cards using the third
generation fabric XF2 chip (MPC4E, MPC5E, MPC2/3 NG, and MPC7E).
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
master.
Provides up to 480 Gbps (non-redundant fabric configuration); 340 Gbps (redundant
fabric configuration)
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