Sun Microsystems 806-2989-10 manual Gigabit Forced Mode Parameter, Interpacket Gap Parameters

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Gigabit Forced Mode Parameter

In 10/100 mode it was possible to disable auto-negotiation and force the link to the speed you required. With Gigabit copper interfaces this feature is also available but may require you to decide whether your side of the connection is a master or a slave. The link_master parameter will facilitate that. Usually switches will be enabled as master therefore this parameter can remain unchanged, since slave operation is the default. If this is not the case Then link_master can be used to enable ce as a master.

TABLE 4-4Forced Mode Parameter

Parameter	Description

link_master	When set to 1 this enables master operation, assuming the link
	partner is a slave.
	When set to 0 this enables slave operation, assuming the link
	partner is a slave. (default)

Interpacket Gap Parameters

The ce device supports a programmable mode called enable_ipg0.

When a driver receives a packet with enable_ipg0 set (the default), it adds an additional time delay before transmitting the packet. This delay, set by the ipg0 parameter, is in addition to the delay set by the ipg1 and ipg2 parameters. The additional ipg0 delay helps to reduce collisions.

If enable_ipg0 is disabled, the value of ipg0 is ignored and no additional delay is set. Only the delays set by ipg1 and ipg2 will be used. Disable enable_ipg0 if other systems keep sending a large number of back-to-back packets. Systems that have enable_ipg0 set might not have enough time on the network.

You can add the additional delay by setting the ipg0 parameter from 0 to 255, which is the media byte time delay.

Chapter 4 Configuring Driver Parameters 29

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Contents Sun GigaSwift Ethernet Adapter Installation User’s Guide Please Recycle FCC Class a Notice Regulatory Compliance StatementsFCC Class B Notice ICES-003 Class B Notice Avis NMB-003, Classe B ICES-003 Class a Notice Avis NMB-003, Classe aBsmi Class a Notice Page Product NameSun GigaSwift Ethernet UTP Adapter X1150A Declaration of ConformityEN550221998 / CISPR221997 Page Contents Configuring VLANs Configuring Driver ParametersSpecifications Index Diagnostic Software and Troubleshooting IssuesPage Figures Page Tables Page How This Book Is Organized PrefaceTypographic Conventions Using Unix CommandsShell Prompts Accessing Sun Documentation OnlineRelated Documentation Sun Welcomes Your Comments Ordering Sun DocumentationHardware Overview Product Overview1Sun GigaSwift Ethernet UTP Adapter Sun GigaSwift Ethernet UTP AdapterHardware and Software Requirements Product FeaturesKey Protocols and Interfaces Diagnostic Support Installing the Driver Software Installing the AdapterBecome superuser 1Files and Directories on the CD-ROM See -1to identify the optional packages To Install the Adapter Installing the Adapter Without Dynamic Reconfiguration1Cat-5 Twisted-Pair Cable To Verify the InstallationList the network devices on your system Ok .properties View the .properties file for a list of device propertiesTo Set the GigaSwift Ethernet Device Primary Boot Device Setting the local-mac-addressPropertyRebooting the System To Install an Adapter in a Dynamic Reconfiguration System Installing the Adapter With Dynamic ReconfigurationIf the status of the slot is not empty or disconnected, type Reconfigure the devices on the adapter Configure the adapter and slotConnect the adapter and slot Configuring the Network Host Files Network ConfigurationEtc/hostname.ce1 # cat /etc/hosts Edit the hosts in the diskless client’s root directory To Set Up a Diskless Client on a GigaSwift Ethernet NetworkNetwork Configuration Find the root directory of the client system # grep clientname /etc/bootparamsShut down and halt the client system Proceed with the Solaris operating environment installation# pkginfo grep SUNWce GigaSwift Ethernet Device Driver Parameters Configuring Driver Parameters1ce Driver Parameter, Status, and Descriptions Driver Parameter Values and DefinitionsOperational Mode Parameters Operational Mode Parameters3Read-Write Flow Control Keyword Descriptions Flow Control Parameters4Forced Mode Parameter Gigabit Forced Mode ParameterInterpacket Gap Parameters 5Parameters Defining enableipg0 and ipg0 5defines the enableipg0 and ipg0 parametersRandom Early Drop Parameters Interrupt Parameters7RX Blanking Register for Alias Read 8RX Random Early Detecting 8-Bit Vectors9PCI Bus Interface Parameters PCI Bus Interface ParametersSetting Parameters Using the ndd Utility Setting ce Driver ParametersNoninteractive and Interactive Modes To Specify Device Instances for the ndd UtilityUse the instance number to select the device To modify a parameter value, use the -setoption Using the ndd Utility in Interactive ModeSetting the Autonegotiation Mode To Disable Autonegotiation Mode Setting Parameters Using the ce.conf FileSet the advautonegcap parameter to Etc/pathtoinst file To Set Driver Parameters Using a ce.conf File10Read-Only ce Device Capabilities GigaSwift Ethernet Driver Operating Statistics11Read-Only Link Partner Capabilities Reporting the Link Partner Capabilities12Transmit and Receive Parameters Rxnewpages rxnewhdrpgs As superuser, type the netstat -kcommand To Check Link Partner SettingsPage An Overview of VLANs Configuring VLANs1shows an example network that uses VLANs Configuring VLANs 2Ethernet Tag Header Format To Configure Static VLANs# ifconfig ce123000 plumb up # ifconfig ce224000 plumb up Page Connectors SpecificationsTable A-1Cat-5 Connector Link Characteristics Physical Characteristics Performance SpecificationsPower Requirements Table A-2Performance SpecificationsSunVTS Diagnostic Software Diagnostic Software Troubleshooting IssuesRunning the Ethernet FCode Self-Test Diagnostic Using the OpenBoot Prom FCode Self- TestReset the system Shut down the systemType show-netsto display the list of devices Set the auto-boot?configuration parameter to true Troubleshooting IssuesReset and reboot the system Type the following to apply and save your changes Adv1000fdxcap Adv1000hdxcap AdvpauseTX AdvpauseRX Index Symbols