Cisco WS-C3750G-12S-SD Hardware Installation Guide - Page 113
Diagnosing Problems
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Chapter 4 Troubleshooting Diagnosing Problems Note If the switch is not configured, the mode buttons are all green. You can omit Step 2 and run Express Setup to configure the switch. Step 2 Continue holding down the Mode button. The LEDs stop blinking after 8 additional seconds, and then the switch reboots. Note These steps only work on a previously-configured switch. The switch now behaves like an unconfigured switch. You can configure the switch by using Express Setup as described in these sections. • "Starting Express Setup" section on page 1-4 • "Configuring the Switch Settings" section on page 1-9 • "Verifying Switch IP Address (Optional)" section on page 1-10 You can also configure the switch by using the command-line interface (CLI) setup procedure described in these sections: • "Starting the Terminal Emulation Software" section on page D-9 • "Entering the Initial Configuration Information" section on page D-10 Diagnosing Problems Common switch problems fall into these categories: • Poor performance • No connectivity • Corrupted software Table 4-1 describes how to detect and resolve these problems. 78-15136-02 Catalyst 3750 Switch Hardware Installation Guide 4-3