Oracle Audio Technologies SunDual 10GbE XFP Enabling Jumbo Frames in a Linux

54 Sun Dual 10GbE XFP PCI Express Card User’s Guide • May 2010

▼To Check Layer 3 Configuration

●Check the Layer 3 configurationby using the dladm command with the show-

link option, as shown in the following example:

Enabling Jumbo Frames in a Linux

Environment

This section describes how to enable jumbo frames in a Linux environment.

▼To Enable Jumbo Frames in a Linux

Environment

1. Ensure that the nxge software is installed.

2. Plumb the Sun x8 Express Dual 10 Gigabit Ethernet Fiber XFP Low Profile

Adapter interface:

where xxx.xxx.xx.xxx is the IP address of the interface.

3. Set the MTU for maximum performance:

Where xis the instance number of the interface you want to configure jumbo

frames on.

#dladm show-link

e1000g0 type: non-vlan mtu: 1500 device: e1000g0

e1000g1 type: non-vlan mtu: 1500 device: e1000g1

e1000g2 type: non-vlan mtu: 1500 device: e1000g2

e1000g3 type: non-vlan mtu: 1500 device: e1000g3

nxge0 type: non-vlan mtu: 9194 device: nxge0

nxge1 type: non-vlan mtu: 9194 device: nxge1

nxge38001 type: vlan 38 mtu: 9194 device: nxge1

#modprobe nxge

#ifconfig eth2 xxx.xxx.xx.xxx up

#ifconfig ethx mtu 9194

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