Chapter 2 Connecting To The Network; Introduction; Power-Up Led Sequence - Cabletron Systems 3E02-04 User Manual

CONNECTING TO THE NETWORK

2.1 INTRODUCTION

This chapter provides reference material and instructions for a network
administrator configuring the Ethernet Switch Modules.
For instructions on adding a module to the ATX, see Chapter 6,
Adding/Swapping Modules.

2.2 POWER-UP LED SEQUENCE

Power-up the ATX and observe the LED sequence. It takes about 1 minute
for the ATX to complete the power-up diagnostics. The ATX begins
system diagnostics on the PPE (topmost module) and then individually on
each installed module progressing from top to bottom.
The specific power-up tests run on the Ethernet switch modules are:
• ROM checksum test
• Instruction memory test
• Memory map tests
• Interrupt tests
• Ethernet data loopback test
Ethernet Switch Module User Guide
CHAPTER 2
Page 2-1