Cabletron Systems ELS100-24TXM

88 Flow Control ELS100-24TXM

The ELS100-24TXM Port Statistics Screen indicates the number of pause

frames that have been sent, indicating the number of times full duplex flow

control has occurred. For the full duplex pause frame mechanism to w ork,

the device connected to the switch port must also support IEEE 802.3x

flow control. Flow Control is configurable per port in the Port Confi guration

Menu of the console menu or via SNMP.

Contents

Main NOTICE FCC NOTICE DOC NOTICE VCCI NOTICE CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT CABLETRON SOFTWARE PROGRAM LICENSE EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY UNITED STATES GOVERNMENT RESTRICTED RIGHTS SAFETY INFORMATION LASER RADIATION AND CONNECTORS DECLARATION OF CONFORMITY Page TABLE OF CONTENTS Page Page Page PREFACE Purpose Audience Conventions Organization Page Page 1. PRODUCT OVERVIEW Description Features Front Panel Figure 1-1. ELS100-24TXM Front Panel Table 1-1. Front Panel Components Page Page Rear Panel Feature Summaries IEEE 802.1D Bridge Spanning Tree Protocol Frame Buffering and Frame Latency Software Download Non-volatile Parameter Storage Configuration and Management Interfaces RMON Port Mirroring Auto-negotiation Broadcast Throttling BootP/DHCP LEDs Full Duplex Mode Flow Control Virtual LANs (VLANs) Application Examples Client/Server Network Application Local Backbone Application Page 2. INSTALLATION Inspecting Your Shipment Site Requirements Page Mounting the Switch on a Wall Mounting the Switch in a Rack Installing a Fiber Uplink Module into the Switch Connecting a Terminal to the Console Port Powerin the Switch Power-Up Network Cable Requirements Copper Fiber 10Base-T/100Base-TX Ports 100Base-FX Fiber Ports Fiber Uplink Modules 3. ELS100-24TXM USER INTERFACE Overview User Access Factory Defaults 28 ELS100-24TXM User Interface ELS100-24TXM Menu Hierarchy Figure 3-2 shows the ELS100-24TXM switch user interface menu hierarchy. Figure 3-2. ELS100-24TXM User Interface Menu Hierarchy Main Menu Figure 3-3. Main Menu System Configuration Menu Figure 3-4. System Configuration Menu SNMP Configuration Menu Figure 3-5. SNMP Configuration Menu Switch Configuration Menu Figure 3-6. Switch Configuration Menu Forwarding Table Configuration Menu Figure 3-7. Forwarding Table Configuration Menu Page Spanning Tree Configuration Menu Figure 3-8. Spanning Tree Configuration Menu Page Spanning Tree Port Configuration Menu Figure 3-9. Spanning Tree Port Configuration Menu Spanning Tree Port #n Configuration Menu Figure 3-10. Spanning Tree Port Configuration Menu Configuration Menu. Figure 3-10 shows the Spanning Tree Port # Configuration Menu and the accompanying table describes the Spanning Tree Port # Configuration Menu. The Port # VLAN Configuration Menu VLAN Menu Figure 3-12. VLAN Menu VLAN #n Configuration Menu Figure 3-13. VLAN #n Configuration Menu VLAN Port Menu Figure 3-14. VLAN Port Configuration Menu Class of Service Configuration Menu Figure 3-15. Class of Service Configuration Menu Port Priority Menu Figure 3-16. Port Priority Configuration Menu Port Menu Figure 3-17. Port Menu Port Configuration Menu Figure 3-18. Port Configuration Menu Switch Statistics Screen Figure 3-19. Switch Statistics Screen Switch Summary Screen Port Statistics Screen Page General Information Screen Figure 3-22. General Information Screen Download Software Menu Save Current Configuration Return to Default Configuration Logout Reset 4. CONFIGURING & MONITORING THE SWITCH Common Tasks Setting Password Protection Assigning an IP Address Checking Network Configuration Status Connecting via Telnet Setting SNMP Management Access Viewing Switch Statistics Configuring Port Mirroring Downloading a Software Upgrade Downloading Via the Serial Port Downloading Via TFTP Page Configuring VLANs Configuring Class of Service Port Operation the Forwardin Table Broadcast Cutoff Rate Setting a Default Gateway Configuring BootP/DHCP 5. SNMP MANAGEMENT The SNMP Protocol MIB Objects RFC 1213 (MIB-II) Page Page Table 5-1. System Information Variables Table 5-2. Switch Information Variables Table 5-2 Switch Information Variables (continued) Compilin MIB Extensions: Cabletron Website ftp://134.141.197.25/pub/snmp/mibs/enterprise ctELS100-NG-mib.txt Page APPENDIX A. TECHNICAL SPECIFICATIONS General Standards Compliance Certification Data Rate Page Port Specifications Console Port 10Base-T and 100Base-TX Ports MDI/MDI-X Crossover Cable Wiring Power Cord Set Requirements General Requirements Country-Specific Requirements NOTE 1 NOTE 2 NOTE 3 Page APPENDIX B. SPANNING TREE CONCEPTS General Spanning Tree Features Spanning Tree Protocol in a Network Spanning Tree Protocol Parameters Table B-1. Spanning Tree Protocol Defaults Spanning Tree Protocol Operation Communicating Between Bridges Selecting a Root Bridge and Designated Bridges Selecting Designated Ports Handling Duplicate Paths Page Page APPENDIX C. FLOW CONTROL Page APPENDIX D. VIRTUAL LANS (VLANS) VLANs and Frame Tagging ELS100-24TXM VLAN Configuration VLAN ID Ports in VLAN VLAN Egress Ports VLAN Access Ports VLAN Hybrid Ports Page VLAN Application Example APPENDIX E. CLASS OF SERVICE Page APPENDIX F. ACRONYMS & ABBREVIATIONS Page INDEX A B C D I L M N P T U V W