Scbe2-Mx Components - Juniper MX960 Hardware Manual

Feature
In-system removable
Routing Engine
Hot-Swappable
Redundancy
1000Base-T Ethernet
Controller
Hitless Operation

SCBE2-MX Components

Component
OK/FAIL, FABRIC-ACTIVE,
FABRIC-ONLY LEDs
XGE ports
XGE port LEDs
EXT CLKport
Description
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.
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.
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.
Provides a 1 Gbps Ethernet link between the Routing Engines.
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.
Description
Indicate the status of the SCBE2-MX. See
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.
Two LINK LEDs indicate the status of the XGE ports. See
The RJ-45 external clock interface port, labeled EXT CLK, receives GPS and PPS
timing from the GPS external interface.
Table 73 on page 160.
Table 73 on page
159
160.