Host Subsystem Components; Mx2000 Host Subsystem Cb-Re Description - Juniper MX2010 Hardware Manual

CHAPTER 6

Host Subsystem Components

IN THIS CHAPTER
MX2000 Host Subsystem CB-RE Description | 51
RE-MX2000-1800x4 CB-RE Description | 52
REMX2K-X8-64G and REMX2K-X8-64G-LT CB-RE Description | 56
REMX2K-X8-128G CB-RE Description | 58
CB-RE LEDs | 62
MX2000 Switch Fabric Board (SFB) Overview | 66
MX2000 Switch Fabric Board LED | 66

MX2000 Host Subsystem CB-RE Description

The CB-RE is a combined Routing Engine and Control Board in one unit. It performs the following functions:
Maintains the routing tables
Manages the routing protocols used on the router
Controls the router interfaces
Controls some chassis components
Provides the interface for system management and user access to the route
The CB-RE is hot-pluggable and installs into the front of the MX2000 chassis in vertical slots labeled 0
and 1. A USB port on the CB-RE accepts a USB memory device that allows you to load Junos OS. You can
install one or two CB-REs in the router. If two CB-REs are installed, one functions as the master and the
other acts as the backup. If the master CB-RE fails or is removed and the backup is configured appropriately,
the backup takes over as the master. If no CB-RE is installed in a slot, install a blank panel in the slot.
A minimum of one CB-RE must be installed in either slot 0 or slot 1 at all times.
CAUTION:
replacement or blank panel to install.
If one CB-REs fails, do not remove the failed CB-RE until you have a
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