Manuals / Cabletron Systems / Computer Equipment / Switch

Cabletron Systems 3T02-04 manual Power-up Results, OPERATIONAL DIAGNOSTICS 5.2.1 Loopback Tests

Models: 3T02-04

1 52

Download 52 pages 2.24 Kb

Page 36

Chapter 5: Diagnostics and Troubleshooting

5.1.2Power-up Results

After completion of the power-up diagnostic sequence, all status LEDs on the ATX front panel should be on (lit), indicating that the modules have passed the power-up tests.

Refer to Table 5-1 for descriptions of the LEDs during normal operation.

Table 5-1 Meaning of LEDs

	LED	Meaning


	RX	Token Ring port is receiving data (LED ﬂashes)

	ST	Ring status of port, on if port is inserted into the ring

	PROC	Token Ring processor is ready for operation (LED on)

	TX	Token Ring port is transmitting data (LED ﬂashes)

	16	If LED is on, then port ring speed is set for 16 Mbps, if not on then
	16	port ring speed is set for 4 Mbps
		port ring speed is set for 4 Mbps

	POWER	Token Ring module hardware is receiving power (LED on)

5.2 OPERATIONAL DIAGNOSTICS

5.2.1Loopback Tests

Built-in local and remote loopback tests can be used to test individual ports while the ATX is operational. When in local loopback, a port is disconnected from its network. The ATX generates loopback packets for the port, and the port loops the packets back without sending them onto its network.

During a remote loopback test, the port is in normal operation, sending and receiving packets to its network. The ATX generates loopback packets which are sent out of the port to a particular destination device on the port’s network. The destination device echoes the packet back onto the network, and the originating port receives the packet.

Page 5-2

Token Ring Switch Module User Guide

Image 36

Cabletron Systems 3T02-04 Power-up Results, OPERATIONAL DIAGNOSTICS 5.2.1 Loopback Tests, Diagnostics and Troubleshooting

Contents

TOKEN RING SWITCH MODULE 3T02-04 AND 3T01-04 USER GUIDE Page Token Ring Switch Module User Guide Token Ring Switch Module User Guide FCC NOTICEDOC NOTICE VCCI NOTICEEXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY Token Ring Switch Module User GuideCABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT CABLETRON SOFTWARE PROGRAM LICENSEToken Ring Switch Module User Guide UNITED STATES GOVERNMENT RESTRICTED RIGHTSCONTENTS CHAPTER 2 CONNECTING TO THE NETWORKCONFIGURING Token Ring Switch Module User GuideContents CHAPTER 5 DIAGNOSTICS AND TROUBLESHOOTINGTECHNICAL SPECIFICATIONS Token Ring Switch Module User GuideCHAPTER INTRODUCTION 1.1 DOCUMENT CONVENTIONS 1.2 RELATED MANUALS 1.3 GETTING HELPanonymous your email address1.4 GENERAL DESCRIPTION 1.6 CONNECTORS 1.5 STANDARDSFigure 1-1 ATX Front Panel Figure 1-2 3T02-04 and 3T01-04 Front Panels1.7 LEDs Token Ring Switch Module User GuideChapter 1 Introduction PageCHAPTER CONNECTING TO THE NETWORK 2.2 POWER-UP LED SEQUENCE2.1 INTRODUCTION 2.3 TYPICAL CONFIGURATIONS 2.4 CONNECTING THE TOKEN RING MODULE TO A HUB2.4.1 Unshielded Twisted Pair Chapter 2 Connecting to the Network2.4.2 Shielded Twisted Pair Figure 2-2 Connecting a Token Ring Module to an STP MAU CHAPTER CONFIGURING 3.1 INTRODUCTION3.2 CONNECTING THE LCM 3.3 LCM COMMANDS3.4 SETTING THE RING SPEED 3.5 CONFIGURING THE BRIDGING TYPE 3.5.1 Transparent3.5.2 Source Routing and SRT 3.5.2.1 Bridging Method3.5.2.2 Segment Number 3.5.2.3 Bridge Number 3.6 TRANSLATION OPTIONS3.6.1 ARP Translation 3.6.2 Source Routing ARP Translation 3.6.3 IPX Translation3.6.4 AppleTalk Translation Off - perform no translation On - translate the packets Token Ring Switch Module User Guide Chapter 3 ConﬁguringPage CHAPTER STATISTICS 4.1 DISPLAYING PORT STATUSDisabled - The port is not conﬁgured for Spanning Tree RXQ Overﬂows - number of incoming packets dropped by the port due to a lack of buffers. This entry shows status only it is not selectable. After a reboot, the ATX tries to automatically re-allocate the Small Buffers among the ports so that the total number of RXQ Overﬂows is minimized 4.2 MODULE STATISTICS Table 4-1 Destination Addresses and Forwarding OutcomesDestination Address Forwarding OutcomesifTxSizes - The number of packets not sent due to size limitations Token Ring Switch Module User Guide Chapter 4 StatisticsPage CHAPTER DIAGNOSTICS AND TROUBLESHOOTING 5.1 POWER-UP DIAGNOSTICS 5.1.1 Power-up Tests5.1.2 Power-up Results 5.2 OPERATIONAL DIAGNOSTICS 5.2.1 Loopback TestsChapter 5 Diagnostics and Troubleshooting 5.2.2 Diagnostic Results 5.3 TROUBLESHOOTING 5.3.1 If the Module Fails to Power Up5.3.2 Connectivity Problems 6.1 UNPACKING THE TOKEN RING SWITCH MODULE 6.2 ADDING A TOKEN RING SWITCH MODULECHAPTER ADDING/SWAPPING MODULES Delete all static addresses 6.3 SWAPPING A MODULE Token Ring Switch Module User Guide Chapter 6 Adding/Swapping ModulesPage APPENDIX A TECHNICAL SPECIFICATIONS DB9 for STP RJ45 for UTP APPENDIX B BRIDGING METHODS B.1 OVERVIEWB.2 TRANSPARENT BRIDGING Appendix B Bridging MethodsB.3 SOURCE ROUTING BRIDGING Figure B-1 Source Routing ExampleFigure B-2 Data Path Using Source Routing Bridging Station AStation C B.4 SOURCE ROUTING TRANSPARENT BRIDGING Token Ring Switch Module User Guide Appendix B Bridging MethodsPage B-6 INDEX Token Ring Switch Module User Guide IndexIndex-2