EMC DS-16B2 manual Configuration

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Glossary

CRC Cyclic Redundancy Check; a check for transmission errors included in every data frame.

Credit As applies to Fibre Channel, the number of receive buffers available for transmission of frames between ports. See also BB_Credit and EE_Credit.

Cut through A switching technique that allows the route for a frame to be selected as soon as the destination address is received. See also Route.

D

Data Word Type of transmission word that occurs within frames. The frame header, data field, and CRC all consist of data words. See also Frame, Ordered set, and Transmission Word.

Defined Zone The set of all zone objects defined in the fabric. May include multiple Configuration zone configurations. See also Enabled Configuration and Zone

Configuration.

Disparity The relationship of ones and zeros in an encoded character. Neutral disparity means an equal number of each, positive disparity means a majority of ones, and negative disparity means a majority of zeros.

DLS Dynamic Load Sharing; dynamic distribution of traffic over available paths. Allows for recomputing of routes when an Fx_Port or E_Port changes status.

Domain ID As applies to Departmental Switches, a unique number between 1 and 239 that identifies the switch to the fabric and is used in routing frames. Usually automatically assigned by the switch, but can be manually assigned.

E

E_D_TOV Error Detect Time out Value; the minimum amount of time a target waits for a sequence to complete before initiating recovery. Can also be defined as the maximum time allowed for a round trip transmission before an error condition is declared. See also R_A_TOV and RR_TOV.

E_Port Expansion Port; a type of switch port that can be connected to an

E_Port on another switch to create an ISL. See also ISL.

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Departmental Switch Model DS-16B2 Fabric OS Procedures Manual

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Contents Departmental Switch Model DS-16B2 Fabric OS Procedures ManualCopyright 2001 EMC Corporation. All rights reserved Trademark Information Departmental Switch DS-16B2 Fabric OS Procedures Manual Contents Chapter Displaying Error Logs and Status Preface Damage to the system or equipment. The caution may apply to Palatino Http//powerlink.emc.com Setting the Initial Switch Configuration Logging In to a Switch Switch55adminEnabling Licensed Features Displaying the Installed Feature Licenses Changing the Admin Password and User IDConfiguring the IP Address Displaying the Fabric-Wide Device Count Basic Switch Configuration Procedures Setting the Telnet Timeout Value Displaying the Firmware VersionSetting the Switch Date and Time Displaying the System Configuration Settings Backing Up the System Configuration SettingsRestoring the System Configuration Settings Upgrading or Restoring the Switch Firmware Disabling a SwitchDisabling a Port Enabling a SwitchEnabling a Port Changing a Switch Name Setting the Switch Status Policy Viewing the Policy Threshold ValuesEnabling the Track Changes Feature Displaying Whether Track Changes is EnabledConfiguring a Static Route Between Two Ports Displaying Help Information for a Telnet CommandReading Hexadecimal Port Diagrams Example0000 0001 0010 1000 0011 Departmental Switch DS-16B2 Fabric OS Procedures Manual Displaying Error Logs Status Displaying the Status of a Port Statistics for a PortDisplaying a Summary of Port Errors Error Type DescriptionDisplaying the Error Log of a Switch Displaying the Switch StatusDisplaying Information About a Switch Displaying the Uptime of the Switch Displaying the Fan StatusDisplaying Power Supply Status Running Diagnostic Tests on the Switch Hardware Displaying the Temperature StatusSupportShow Syntax supportShow firstPort, lastPort, nLog Displaying Error Logs and Status Customer Support Overview of Detecting and Resolving Problems Figure A-1Problem Detection and Resolution ProcessTroubleshooting the Problem Before Calling the Customer Support Center Documenting the Problem Reporting a New Problem Sending Problem Documentation FTPCustomer Support Glossary Glossary Glossary Configuration EIA Rack Glossary Glossary Glossary See also Nonparticipating Mode and Participating Mode Glossary Glossary Glossary Glossary Glossary UDP Glossary