Multistage Topology | Q-Logic 59021-05 B manual

Q

3 – Planning Multiple Chassis Fabrics

3.2.2.3

Multistage Topology

A Multistage topology describes a fabric in which two or more edge switches connect to one or more core switches. Each additional core switch increases the bandwidth to each edge switch by 200 MB/s. The Multistage fabric shown in Figure 3-3has the following characteristics:

Each link contributes up to 200 MB/s of bandwidth between chassis. Competition for this bandwidth is less than that of a cascade topology, but greater than that of the mesh topology.

Latency between any two device ports is three chassis hops.

52 Fibre Channel ports are available for devices

	Core Switch
Edge Switch	Edge Switch
	Edge Switch

Figure 3-3. Multistage Topology

59021-05 B

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Q-Logic 59021-05 B manual Multistage Topology

Contents

SANbox2-16 Fibre Channel Switch Installation Guide Document Revision History SANbox2-16 Fibre Channel Switch Installation Guide Table of Contents Section Planning Section Installation Section Diagnostics/Troubleshooting Appendix B Command Line Interface Section Removal/ReplacementAppendix a Specifications Figures Glossary Index Tables Intended Audience Introduction Related Materials Sicherheitshinweise Safety Notices Federal Communications Commission FCC Class a Statement Communications Statements CE Statement Bsmi Class a Statement Vcci Class a Statement Electrostatic Discharge Sensitivity Esds Precautions Laser Safety Information Zugängliche Teile Accessible PartsPièces Accessibles Contact Information Technical SupportAvailability Training Introduction Technical Support 59021-05 B General Description Chassis Controls and LEDs Power SwitchesMaintenance Button Fan Fail LED Amber Over Temperature LED AmberChassis LEDs Fibre Channel Ports Input Power LED GreenHeartbeat LED Amber Port LEDs Small Form-Factor Pluggable SFP Transceivers Port Modes Logged-In LEDActivity LED Expansion Port Fabric PortsTranslated Loop Port Serial Port Ethernet Port Serial Port Pin Identification Power Supplies 10. Fans Fans Switch Management General Description Switch Management 59021-05 B Devices Planning Domain ID, Principal Priority, and Domain ID Lock Multiple Chassis Fabrics Cascade Topology Common Topologies Mesh Topology Mesh Topology Multistage Topology Multistage Topology Distance Performance Port-to-Port Latency BandwidthLatency Port-to-Port Transmission Combinations Device Access Soft Zones Access Control List Hard Zones Fabric Management Virtual Private Fabric Hard Zones Fabric Security Planning Fabric Security 59021-05 B Management Workstation Requirements Switch Power RequirementsSite Requirements Fabric Management Workstation Environmental Conditions Installing a Switch Mount the Switch Installing Rack Mount Brackets Install SFP Transceivers Avertissement Connect the Switch to AC Power Warnung Installation Installing a Switch Ethernet and Serial Cable Connections Connect the Management Workstation to the Switch Serial Connection Ethernet Connection Enter the following command at the Solaris prompt Install SANbox Manager SANsurfer Management Suite Disk Windows Installation Enter the following command SANsurfer Management Suite Disk Linux Installation Press the Enter key Enter the following command SANsurfer Management Suite Disk Solaris Installation SANbox2 Installation Disk Solaris Installation SANbox2 Installation Disk Windows InstallationSANbox2 Installation Disk Linux Installation Configure the Switch Cable Devices to the Switch Configure the Ports Using SANbox Manager to Install Firmware Install Firmware Enter the following command to install the new firmware Using the CLI to Install FirmwareTo start an admin session, enter the following Close the FTP session Using FTP and the CLI to Install Firmware Powering Down a Switch Normal all pass Post DiagnosticsHeartbeat LED Blink Patterns Internal Firmware Failure Blink Pattern Maintenance Mode PatternFatal Error Blink Pattern Configuration File System Error Blink Pattern Enter the following account name and password userimages Restore the configuration file Logged-In LED Indications Logging Error EPort Isolation Excessive Port Errors Diagnostics/Troubleshooting Post Diagnostics Chassis and Power Supply LEDs Chassis Diagnostics Fan Fail LED is Illuminated Chassis Over Temperature LED is IlluminatedInput Power LED Is Extinguished Power Supply Over Temperature LED is Illuminated Output Power LED Is Extinguished Recovering a Switch Maintenance Image Unpack Maintenance Exit Maintenance Remove Switch Config Maintenance Reset Network ConfigMaintenance Reset Password File Maintenance Copy Log Files Removal/Replacement SFP Transceivers SFP Transceiver Installation Power Supply Removal Fan Removal Fan Installation for Switch Model SB2A-16B Removal/Replacement Fans 59021-05 B Switch Specifications Switch Maintainability Switch Electrical Switch Dimensions Depending on the switch model Switch EnvironmentalSwitch Regulatory Certifications Shortwave Laser SFP 1G/2G multi-mode Longwave Laser SFP 1G/2G single-mode Logging On to a Switch Command Line Interface Command keyword keyword value Command SyntaxCommand syntax is as follows Table B-1. Commands Listed by Authority Level Commands Keywords Admin CommandAuthority Syntax Authority Admin Syntax alias Alias Command Rename aliasold aliasnew Members aliasRemove alias members Edit config Config CommandSyntax config Keywords activate config Save config Restore Keywords MMDDhhmmCCYY Date CommandSyntax date Currently active version Fallback CommandFollowing is an example of the Fallback command Fallback Authority User Help CommandKeywords command Syntax help command keyword Authority User Syntax history History Command Unpack file Image CommandAuthority Admin Syntax image cleanup Keywords cleanup Syntax lip portnumber Keywords portnumber Lip CommandAuthority Admin Reinitializes the specified loop port Syntax passwd accountname Keywords accountname Passwd Command Keywords ipaddress Ping CommandAuthority User Syntax ping Ipaddress Displays current system process information Ps CommandFollowing is an example of the Ps command Syntax Examples Syntax quit, exit, or logout Quit CommandCloses the Telnet session Config configname Reset Command Table B-3. Port Configuration Defaults Table B-2. Switch Configuration Defaults Table B-4. Alarm Threshold Configuration Defaults Table B-5. Snmp Configuration Defaults Table B-6. System Configuration Defaults Syntax set Set Command Port option Setup optionSwitch state Port portnumber Set Config CommandSet config Table B-7. Set Config Port Parameters Use Arbff instead of idles on loop Fcal option Table B-8. Set Config Switch Parameters Threshold Table B-9. Set Config Threshold Parameters Arbff Table B-10. Set Config Zoning Parameters Following is an example of the Set Config Threshold command Following is an example of the Set Config Switch command Decimal value, 1-1000 sec DecodeErrorsMonitoringEnabled Following is an example of the Set Config Zoning command Clear Set Log CommandSet log Archive Save Level levelPort portlist Level keyword to Info at the same time StartStop Stops logging of events Set Port Command Snmp System Set Setup CommandSet setup Table B-11. Snmp Configuration Settings Rarp Table B-12. System Configuration Settings Values will follow Trap1Severity See Following is an example of the Set Setup System command Broadcast Show CommandAlarm Keywords about Ns option Log option Table B-13. Show Port Parameters Perf option LIPF7F7 Support Post logSteering domainid Version TopologyUsers Following is an example of the Show Interface command Following is an example of the Show NS local domain commandFollowing is an example of the Show NS DomainID command Picolight Following is an example of the Show Port command Following is an example of the Show Topology command Following is an example of the Show Switch command Following is an example of the Show Version command Show config Show Config Command Following is an example of the Show Config Threshold command Following is an example of the Show Config Switch command Following is an example of the Show Config Zoning command Keywords component Show Log Command Following is an example of the Show Log command Following is an example of the Show Log Options command Show Perf Command Following is an example of the Show Perf Byte command Mfg Show Setup CommandShow setup Following is an example of the Show Setup System command Syntax shutdown Shutdown Command Status Test CommandSyntax test Keywords port portnumber testtype Test x internal Command Line Interface Test Command Authority User Syntax uptime Uptime CommandExamples The following is an example of the Uptime command Add User CommandDisplays all user accounts that exist on the switch Keywords accounts Following is an example of the User List command Following is an example of the User Add commandFollowing is an example of the User Delete command Whoami Whoami CommandFollowing is an example of the Whoami command Syntax zone Zone Command Type zone zonetype Members zoneRemove zone members Rename zoneold zonenew Following is an example of the Zone Members command Following is an example of the Zone Zonesets command Syntax zoneset Zoneset Command Rename zonesetold zonesetnew Following is an example of the Zoneset List commandDelete zoneset Remove zoneset zonelist Following is an example of the Zoneset Zones command History Zoning CommandEdit Opens a Zoning Edit session Limits Following is an example of the Zoning List command Command Line Interface Zoning Command Command Line Interface Zoning Command 59021-05 B Fabric Management Switch BootPClass 2 Service Class 3 Service Over Temperature LED Input Power LEDMSEnable Output Power LED Small Form-Factor Pluggable Private LoopSANbox Manager Small Form FactorPage Numerics Index Index-2 59021-05 B 59021-05 B Index-3 Index-4 59021-05 B 59021-05 B Index-5 Index-6 59021-05 B