Router Operation

Initialization Sequence

Initialization Sequence

Whenever the router is powered on, or when its Reset button is pressed:

1.The Power LED indicates when power is on.

2.The router automatically goes through a self-test, which takes about one to three minutes. (The Self-test LED is lit during this step.)

3.The router’s clock is reset to the time the router was last running. Or, if the Time Protocol is configured to run on this router, the time is set to the time found on a time server.

4.The router operating code is automatically executed.

5.Dynamic variables (such as the counters and events) are reset.

6.The configuration is read from battery-backed RAM into active circuitry. This implements any configuration changes saved since the router was last reset.

If you execute the NCL Boot command on the console, the initialization sequence begins at step 4, above.

Communication is automatically started with the devices that are connected to the router and with the routing applications that are config- ured. Bridging and routing tables are reset. If the router’s factory-default configuration is still in effect, the router will attempt to bridge on all ports. You may see activity reported by the port status LEDs on the router. (Procedures for connecting devices are in chapter 1, “Installation and Initial Setup”.)

When you connect a console (a terminal or a PC running a terminal emu- lator) to the router, the session is restarted. The message Waiting for speed sense appears on the console. Since the correct speed for your terminal has not been sensed yet, the 9600 baud message may appear garbled. When you see the new text on your terminal (or simply a few seconds after the Self-test LED turns off) press [Return] and pause. Repeat if necessary until the router senses and matches your baud rate. Your console session then begins. (The detailed procedure for connecting a console is in chapter 1, “Installation and Initial Setup”.)

Features 2

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