RuggedCom RS1600, RS8000, RS900 RSTP Applications

RuggedSwitch™ User Guide

RSTP Applications

RSTP in Structured Wiring Configurations

RSTP allows you to construct structured wiring systems in which connectivity is

maintained in the event of link failures. For example a single link failure of any of

links A through Z would leave all ports of bridges 555 through 888 connected to

the network.

Figure 34: Example Of A Structured Wiring Configuration

Design Considerations for RSTP in Structured Wiring Configurations

1. Select the design parameters for the network.

What are the requirements for robustness and network failover/recovery times? Are

there special requirements for diverse routings to central host computer? Are there

any special port redundancy requirements?

2. Identify required legacy support.

Are STP bridges used in the network? These bridges do not support rapid

transitioning to forwarding. If these bridges are present can they be re-deployed

closer to the network edge?

3. Identify edge ports and ports with half duplex/shared media restrictions.

Ports that connect to host computers, IEDs and controllers may be set to edge ports in

order to guarantee rapid transitioning to forwarding as well as reduce the number of

topology change notifications in the network. Ports with half duplex/shared media

restrictions require special attention in order to guarantee that they do not cause

extended failover/recovery times.

RuggedCom

Contents

Main RS8000 / RS1600 / RS900 Product Family User Guide Toll Free: (888) 264 0006 RuggedSwitch User Guide RUGGEDSWITCH USER GUIDE 2 RuggedCom FOR USE WITH RS8000, RS1600, AND RS900 PRODUCTS RUGGEDSWITCH OPERATING SYSTEM V1.5 ABOUT THIS USER GUIDE Applicable Firmware Revision Who Should Use This User Guide How To Use This User Guide Document Conventions Note: Means reader take note. Notes contain helpful suggestions or references to materials not Quick Start Recommendations For Users Migrating From Revisions ROS 1.2 and Earlier.. Table Of Contents Page Page Page Page TABLE OF FIGURES Page Page Page Chapter 1 Setting Up And Administering The Switch Introduction The RuggedSwitch User Interface Using the RS232 Port to Access the User Interface The Structure of the User Interface Making Configuration Changes Updates Occur In Real Time Alarm Indications Are Provided The CLI Shell Administration Menu Configure IP Services IP Address Type IP Address Page Configuring System Identification Configure Passwords Diagnostics Note: Configure Time and Date Time Zone NTP Server Address NTP Update Period Configure SNMP Management Stations Community String Address Set Access Send Traps Page Chapter 2 - Configuring MAC Address Management Introduction MAC Address Management Features MAC Address Management Configuration MAC Address Management Parameter Ranges & Default Settings Viewing MAC Addresses MAC Address VID Port Type Purge MAC Address Table Configure MAC Address Learning Options Aging Time Configure Static MAC Address Table Page Chapter 3 Configuring the Ports Port Features 10BaseT/100Base Interfaces 10BaseFL Interfaces 100BaseFX Interfaces Port Applications Port Security Broadcast Rate Limiting Controller Protection Through Loss-of-Link Management Using Port Mirroring Introduction Configuring Port Mirroring Port Configuration And Status Port Parameter Ranges & Default Settings Port Configuration Menu Name Note: Status Media Type Port Rate Limiting Menu Broadcasts Port Security Menu Security Autolearn Note: t i . Shutdown Time Port Mirroring Menu Port Mirroring Source Port Target Port Viewing Port Status Resetting Ports Page Chapter 4 Configuring VLANs VLAN Features VLAN Concepts And Issues VLANs and Tags Tagged vs. Untagged Frames Native VLAN Management VLAN VLAN Applications Traffic Domain Isolation Administrative Convenience Reduced Hardware VLAN 3 VLAN 4 VLAN 2 Service Differentiation VLAN Configuration VLAN Parameter Ranges & Default Settings Virtual LANs Menu Static VLANs Menu Note: VID VLAN Name Port VLAN Parameters Menu Type Page PVID (Native VLAN) PVID Format VLAN Summary Menu Page Chapter 5 Configuring Class of Service Introduction to CoS CoS Features CoS Concepts And Issues CoS Operation Forwarding Phase CoS Configuration CoS Parameter Ranges & Default Settings Classes Of Service Menu Global CoS Parameters Menu CoS Weighting Port CoS Parameters Menu Default CoS Inspect TOS Priority to CoS Mapping Menu CoS DSCP to CoS Mapping Menu CoS CoS Access Priorities Menu Normal Access Priority High Access Priority Chapter 6 Configuring Rapid Spanning Tree RSTP Features RSTP Concepts And Issues RSTP Operation RSTP States And Roles Forwarding Learning Discarding Disabled Link Down Edge Ports Point To Point and Multipoint Links Path And Port Costs Bridge Diameter RSTP Applications RSTP in Structured Wiring Configurations Design Considerations for RSTP in Structured Wiring Configurations RSTP in Ring Backbone Configurations Design Considerations For RSTP in Ring Backbone Configurations RSTP Port Redundancy RSTP Configuration Bridge and Port Parameter Ranges & Default Settings Bridge Parameters Port Parameters Spanning Tree Menu Bridge RSTP Parameters Menu State Version Support Bridge Priority Hello Time Max Age Time Transmit Count Forward Delay Cost Style Port RSTP Parameters Menu Enabled Priority STP Cost RSTP Cost Point To Point RSTP Statistics Bridge RSTP Statistics Menu Bridge Status Bridge ID Designated Root ID Page Port RSTP Statistics Menu Status Role Page Page Page Page Chapter 7 Configuring MULTICAST FILTERING Introduction to Multicast Filtering Note: RuggedSwitch IGMP Snooping supports IGMP Features IGMP Concepts And Issues Router IGMP Operation Switch IGMP Active and Passive Operation Active Mode Note: Passive Mode Combined Router And Switch IGMP Operation Starting Up Processing Joins Processing Leaves Multicast Sources IGMP And RSTP Multicast Filtering Configuration Multicast Filtering Parameter Ranges & Default Settings Multicast Filtering Menu IGMP Parameters Menu Mode Multicast Filtering Statistics IP Multicast Groups Menu VID IP Address Page Page Page Chapter 8 Diagnostics Introduction Using The Alarm System Alarm Concepts And Issues Types Of Alarms Note: Format of Alarms Note: Alarms And The Critical Failure Relay Viewing And Clearing Alarms Viewing Alarms Clearing Alarms Viewing CPU Diagnostics Viewing and Clearing the System Log Viewing Product Identification Page Chapter 9 Using Ethernet And RMON Statistics View Ethernet Statistics View Ethernet Port Statistics Cumulative Statistics of Packet/Byte Counts Cumulative Error Statistics Packet Count By Size of Packet Remote Monitoring (RMON) Page RMON Historical Statistics Concepts And Issues Configure RMON History Control Table Menu RMON History Samples Table Menu RMON Alarms And Events Concepts And Issues The Alarm Process Alarm Generation And Hysteresis Delta vs. Absolute Values Configure RMON Alarms Index Variable Rising Threshold Falling Threshold Page Configure RMON Events Index Type Community Last Time Sent RMON Event Logs Log Log Time Log Description Page Chapter 10 - Using The CLI Shell Introduction Entering And Leaving The Shell Summary Of Commands Viewing Files Dir command Viewing And Clearing Log Files Running Loopback Tests Pinging A Remote Device Tracing Events Notes: Enabling Tracing Starting The Trace Viewing DHCP Learned Information Using Ipconfig Executing Commands Remotely Through RSH Resetting The Switch Chapter 11 Upgrading Firmware And Managing Configurations Introduction Note: Upgrading Firmware IP Services Configuration Menu, TFTP Server Upgrading Firmware With Xmodem Upgrading Firmware Using A TFTP Client On Your Workstation IP Services Configuration Menu, TFTP Server Note: Checking The Status OF The Download. Upgrading Firmware Using The TFTP Client On Your RuggedSwitch Capturing Configurations Capturing Configurations With XModem Capturing Configurations With TFTP Using SQL Commands Getting Started Finding The Correct Table Retrieving Information Retrieving A Table Retrieving A Parameter From A Table Retrieving A Table With The Where Clause Changing Values In A Table Defaulting A Table RuggedSwitch User Guide Using RSH And SQL RuggedCom Figure 77 Bulk Inspections Using RSH and SQL Appendices Appendix A - Menu Tree RuggedCom 107 RuggedSwitch User Guide A PPENDIX B - SNMP MIB S RuggedCom APPENDIX C SNMP TRAP SUMMARY The switch generates the standard traps summarized in the following table. APPENDIX D RMON ACCEPTABLE MIB PARAMETERS Page Page Page I