Oracle Audio Technologies SunDual 10GbE XFP

Chapter 5 Configuring thenxge Device Driver Parameters 43

▼To Obtain Higher ThroughputUsing the Generic

Tunables for the Solaris TCP/IP Stack

●Toobtain higher throughput, add the following to a startup script:

ndd -set /dev/tcp tcp_conn_req_max_q 8192

ndd -set /dev/tcp tcp_conn_req_max_q0 8192

ndd -set /dev/tcp tcp_max_buf 4194304

ndd -set /dev/tcp tcp_cwnd_max 2097152

ndd -set /dev/tcp tcp_recv_hiwat 400000

ndd -set /dev/tcp tcp_xmit_hiwat 400000

Contents

Main Please Recycle Contents Page Page Page Using This Documentation Note Using UNIX Commands Page Related Documentation Documentation, Support, and Training Documentation Feedback Page Product Overview Components Product Description Hardware and Software Requirements Features Declaration of Conformity EMC USAFCC Class A European Union Safety Page Page Installing and Setting Up the Driver Downloading and Installing the Driver on a Solaris SPARC or x86 Platform To Download the Driver on a Solaris Platform Page To Remove the Driver from a Solaris Platform Downloading and Installing the Driver on a Linux Platform Note To Remove the Driver From a Linux Platform Installing the Adapter Note Installing the Adapter Caution Note To Install the Adapter Page Page Note Installing an Optical Transceiver To Install an Optical Transceiver Note Page Verifyingthe Hardware Installation Note To Verify the Hardware Installation Note Page Page Network Configuration Configuring the Network Host Files Page Setting Up a 10-Gigabit Ethernet Network on a Diskless Client System Note To Set Up a 10-Gigabit Ethernet Port on a Diskless Client Installing the Solaris Operating System Over a 10-Gigabit Ethernet Network Note To Install the Solaris Operating System Over a 10-Gigabit Ethernet Network Note Page Booting Over the 10-Gigabit Ethernet Network for Solaris x86 and Linux Systems To Boot Over the Network on Solaris x86 and Linux Systems Page Page Configuring the nxge Device Driver Parameters nxge Hardware and Software Overview Setting nxge Driver Parameters on a Solaris Platform Setting Parameters Using the ndd Utility Noninteractive and Interactive Modes To Specify Device Instances for the ndd Utility To Specify Parameter Values Using the ndd Utility To Use the ndd Utility in Interactive Mode Setting Parameters Using the nxge.conf File To Set Driver Parameters Using an nxge.conf File Page Page Page Tuning for Maximum Performance on a Solaris Platform To Improve Performance on an UltraSPARC CPU Based Sun Platform To ImprovePerformance on an AMD CPU Based Sun Platform Page Setting Parameters on a Linux Platform To Set Parameters Using the ethtool Utility 1. Determine which parameters are available using the ethtool utility: Page Page 2. To change RX interrupt Coalesce parameters use the ethtool -Ccommand: 3. To get status of L4 HW checksumming, use the ethtool -kcommand: To Set Parameters Using the Bundled configtool Utility Note 3. To set a particular variable, use the /usr/local/bin/nxge_config if_name set param_name value: Tuning for Maximum Performance on a Linux Platform Page Configuring the Jumbo Frames Feature Jumbo Frames Overview Note Checking Jumbo Frames Configurations To Show the Driver Statistics in a Solaris 1. Use the kstat command to display driver statistics, for example: Enabling Jumbo Frames in a Solaris To Enable Jumbo Frames in a Solaris Environment Using nxge.conf To Check Layer 2 Configuration To Check Layer 3 Configuration Enabling Jumbo Frames in a Linux To Enable Jumbo Frames in a Linux To Show the Driver Statistics in a Linux 1. Use the ifconfig utility to display driver statistics, for example: 3. To get more specific statistics, use the grep command on the output of ethtool - S: Configuring Link Aggregation Overview of Link Aggregation Configuring Link Aggregation in a Solaris Environment To Configure Link Aggregation in a Solaris Page Configuring Link Aggregation in a Linux Environment To Configure Bonding for Multiple nxge Interfaces Configuring VLANs Overview of VLANs Page Configuring VLANs in a Solaris Note To Configure Static VLANs Configuring VLANs in a Linux To Configure VLANs in a Linux Environment Page Specifications Connectors Gigabit Ethernet Fiber XFP Low ProfileAdapter. Performance Specifications Physical Characteristics Power Requirements Page Diagnostic Software SunVTS Diagnostic Software Note Updating SunVTS to Recognize the Adapter To Update SunVTS to Recognize the Adapter Using the SunVTS netlbtest To Use the netlbtest Page Index