Network Router User Manual

Figure 5: Routing Engine
Table 8: States for Routing Engine LEDs
DescriptionStateColorLabel
There is read/write activity on the PC card.BlinkingGreen
HDD
Routing Engine is functioning as master.On steadilyBlue
MASTER
Routing Engine is not operational.On steadilyRed
FAIL
Routing Engine is running normally.On steadilyGreen
ONLINE
Routing Engine Interface Ports
Each Routing Engine has a set of ports for connecting to one or more external devices
on which system administrators can issue JUNOS command-line interface (CLI)
commands to manage the router (see Figure 5).
The ports with the indicated label in each set function as follows:
■
AUX/MODEM— Connects the Routing Engine to a laptop, modem, or other
auxiliary device through an RS-232 (EIA-232) serial cable.
■
MGMT—Connects the Routing Engine through an Ethernet connection 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 both 10- and 100-Mbps connections.
To the left of each MGMT port is a link status indicator, which lights to show that
a link has been established over the Ethernet connection. To the right of each
MGMT port is an activity indicator, which flashes when data is being transferred.
■
CONSOLE—Connects the Routing Engine to a system console through an RS-232
(EIA-232) serial cable.
16 ■ Routing Engine
M10i Internet Router Hardware Guide