Routing Engine Interface Ports; Ports; Routing Engine Boot Sequence - Juniper MX240 Hardware Manual

MX240 5G Universal Routing Platform Hardware Guide
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NOTE: For specific information about Routing Engine components (for
example, the amount of DRAM), issue the

Routing Engine Interface Ports

Three ports, located on the right side of the Routing Engine, connect the Routing Engine
to one or more external devices on which system administrators can issue Junos OS
command-line interface (CLI) commands to manage the router.
The ports with the indicated labels function as follows:
—Connects the Routing Engine to a laptop, modem, or other auxiliary device
AUX
through a serial cable with an RJ-45 connector.
—Connects the Routing Engine to a system console through a serial cable
CONSOLE
with an RJ-45 connector.
—Connects the Routing Engine through an Ethernet connection
ETHERNET or MGMT
to a management LAN (or any other device that plugs into an Ethernet connection)
for out-of-band management. The port uses an autosensing RJ-45 connector to support
10/100/1000-Mbps connections. Two small LEDs on the right of the port indicate the
connection in use: The LED on the left indicates speed—green for 1000-Mbps, yellow
for 100-Mbps and when the LED is dark, it indicates 10-Mbps speed. The LED on the
right indicates activity—flashing green when packets are passing through the port.
RE-S-X6-64G and RE-S-X6-64G-LT Routing Engine Interface Ports
Three ports, located on the left side of the Routing Engine, connect the Routing Engine
to one or more external devices on which system administrators can issue Junos OS
command-line interface (CLI) commands to manage the router.
The ports with the indicated labels function as follows:
—Connects the Routing Engine to a laptop, modem, or other auxiliary device
AUX
through a serial cable with an RJ-45 connector.
—Connects the Routing Engine to a system console through a serial cable
CONSOLE
with an RJ-45 connector.
—Connects the Routing Engine through an Ethernet connection to a management
MGMT
LAN (or any other device that plugs into an Ethernet connection) for out-of-band
management. The port uses an autosensing RJ-45 connector to support
10/100/1000-Mbps connections. Two small LEDs on the right of the port indicate the
connection in use: The LED on the left ndicates speed—green for 1000-Mbps, yellow
for 100-Mbps and when the LED is dark, it indicates 10-Mbps speed. The LED on the
right indicates activity—flashing green when packets are passing through the port.

Routing Engine Boot Sequence

The Routing Engine boots from the storage media in this order: the USB device (if present),
then the CompactFlash card, then the hard disk, then the LAN. The disk from which the
command.
show vmhost hardware
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