Routing Engine Management Ports

On the upper half of the CIP are two sets of ports for connecting the Routing Engines to one or more external devices on which system administrators can issue JUNOS command-line interface (CLI) commands to manage the router. The set of ports labeled HOST0 connects to the Routing Engine in the slot labeled RE 0, and the set labeled HOST1 connects to the Routing Engine in the slot labeled RE 1.

The ports with the indicated label in each set function as follows:

• ETHERNET—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. Two small LEDs on the left edge of the port indicate the connection in use: the LED labeled ETHERNET lights yellow or green for a 10-Mbps or 100-Mbps connection, and the LED labeled ACT lights green when traffic is passing through the port.
• CONSOLE—Connects the Routing Engine to a system console through an RS-232 (EIA-232) serial cable.
• AUXILIARY— Connects the Routing Engine to a laptop, modem, or other auxiliary device through an RS-232 (EIA-232) serial cable.

For information about the pinouts for the connectors, see Cable Connector Pinouts.

Figure 15 shows the ports that connect to the Routing Engine installed in slot RE 0. The arrangement of ports for the Routing Engine installed in slot RE 1 is the same.