Sun Microsystems 805-1797-10 manual Deﬁning the Number of Back-to-Back Packets to Transmit

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Deﬁning the Number of Back-to-Back Packets to Transmit

The pace_size parameter (see Table C–6) deﬁnes the maximum number of back-to-back packets you can transmit at one time. If the value is zero, there is no limit to the number of back-to-back packets that can be transmitted.

TABLE C–6Back-to-back Packet Transmission Capability

Parameter	Values	Description

pace_size	1 to 255	=	Number of back-to-back packets transmitted at one time
	0	=	No limit to the number of back-to-back packets that can
		be	transmitted (default)

Reporting Transceiver Capabilities

Table C–7 describes the read-only transceiver capabilities. These parameters deﬁne the capabilities of the hardware. The internal transceiver can support all of these capabilities.

TABLE C–7Read-Only Transceiver Capabilities

Parameter	ValuesDescription

autoneg_cap	Local transceiver capability of the hardware
autoneg_cap	0
	= Not capable of auto-negotiation
	1
	= Auto negotiation capable
100fdx_cap	Local transceiver capability of the hardware; initialized at startup = Not
100fdx_cap	0
	100Mbit/sec full-duplex capable
	1
	= 100Mbit/sec full-duplex capable
100hdx_cap	Local transceiver capability of the hardware; initialized at startup
100hdx_cap	0
	= Not 100Mbit/sec half-duplex capable
	1
	= 100Mbit/sec half-duplex capable

Conﬁguring the Quad FastEthernet Device Driver Parameters 31

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Contents Revision A, August USA 650 960-1300 fax 650 Revision A, August Please Recycle Contents Running Diagnostics Tests Index Regulatory Compliance StatementsPage How This Book Is Organized PrefaceRelated Documents Unix CommandsShell Prompts Typographic ConventionsTable P-1SunExpress Contact Information Ordering Sun DocumentsXii Sun Welcomes Your CommentsPage 1Sun Quad FastEthernet PCI adapter Product OverviewFeatures Hardware and Software Requirements1Hardware and Software Requirements Displaying the OpenBoot Prom Revision Level Checking the OpenBoot Prom Revision LevelPage Installing the Adapter Using a text editor, add the following line to the endAdding an Entry to the driveraliases File Installing the Adapter Verifying the Installation Diagnostic TestingExamining Network Activity Code Example 2-1 watch-net-allCommad Output Perform a reconﬁguration boot on the system Rebooting the SystemPage At the command line, use the grep command to search Installing the Driver SoftwareConﬁguring the Driver Software Conﬁguring the Host FilesEtc/hosts ﬁle Booting From the Network Reboot your systemAt the ok prompt type Conﬁguring Driver Parameters Post-Installation Procedures OptionalIncreasing TCP/IP Performance As superuser root, typeType Forcing Network Speed Between 10 Mbps and 100 MbpsLocal-mac-address Property Auto-NegotiationOk setenv local-mac-address? true Page Table A-1Physical Dimensions Speciﬁcations Physical DimensionsTable A-2Power Requirements Power RequirementsPerformance Speciﬁcations Table A-3Performance SpeciﬁcationsSpeciﬁcations Page Figure B-132-Pin RJ-45 Connectors Interface SignalsPage Internal Transceiver Conﬁguring the Quad FastEthernet Device Driver ParametersTable C-1qfe Driver Parameter, Status, and Descriptions Driver Parameter Values and DeﬁnitionsQfe Driver Parameter, Status, and Descriptions Deﬁning the Current StatusTable C-2Read-Only Parameters Deﬁning the Current Status Inter-Packet Gap ParametersPacket after receiving a packet Table C-4Parameters Deﬁning lancemode and ipg0Table C-5Operational Mode Parameters Operational Mode ParametersReporting Transceiver Capabilities Deﬁning the Number of Back-to-Back Packets to TransmitTable C-6Back-to-back Packet Transmission Capability Table C-7Read-Only Transceiver CapabilitiesTable C-8Read-Only Link Partner Capabilities Reporting the Link Partner CapabilitiesSetting qfe Driver Parameters Setting Parameters Using the ndd UtilityTo Specify the Device Instance for the ndd Utility To modify a parameter value, use the -setoption Use the instance number to select the deviceUsing the ndd Utility in Interactive Mode Select at least one of the ﬁve capabilities adv100fdxcap To Set the Mode to Auto-NegotiationTable C-9Setting Variables in the /etc/system File Setting Parameters in the /etc/system FileSetting Parameters Using the qfe.conf File Unit-address = 2,1 Fourth line in the previous example Setting ipg Driver Parameters Using a qfe.conf FileKernel/drv/qfe.conf ﬁle Set the ipg1 and ipg2 parameters for the above four devicesUsing the OpenBoot Prom FCode Selftest Running Diagnostics TestsReset the system Shut down the systemType show-devsto display the list of devices Reset and reboot the system Set the auto-boot?conﬁguration parameter to truePage FCC Class a Notice Regulatory Compliance StatementsFCC Class B Notice DOC Class B Notice Avis DOC, Classe B DOC Class a Notice Avis DOC, Classe aEMC Declaration of ConformitySupplementary Information SafetyPage Index-51 Index