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Silicon Graphics network adapter User Manual

10-gigabit ethernet network adapter
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SGI
10-Gigabit Ethernet Network
®
Adapter User's Guide
007–4669–003

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  • Page 1 10-Gigabit Ethernet Network ® Adapter User’s Guide 007–4669–003...
  • Page 2 2E, Mountain View, CA 94043-1351. TRADEMARKS AND ATTRIBUTIONS Silicon Graphics, SGI, the SGI logo, Altix, IRIX, Onyx, Origin, and Silicon Graphics Tezro are registered trademarks and Silicon Graphics Prism is a trademark of Silicon Graphics, Inc., in the United States and/or other countries worldwide.
  • Page 3 geprufte Sicherheit NRTL/C International Special Committee on Radio Interference (CISPR) This equipment has been tested to and is in compliance with the Class A limits per CISPR publication 22. Canadian Department of Communications Statement This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the Radio Interference Regulations of the Canadian Department of Communications.

  • Page 5: New Features

    New Features This revision adds support for the Release 2 card, which is supported with SGI ProPack 4 Service Pack 3 and later releases. 007–4669–003...
  • Page 7 Record of Revision Version Description May 2004 Initial publication August 2005 Revision July 2006 Revision 007–4669–003...

  • Page 9: Table Of Contents

    Obtaining Publications xiii Conventions xiii Product Support Reader Comments 1. Features and Capabilities of the SGI 10-Gbit Ethernet Network Adapter Features Cabling Configuration Limits Tools 2. Connecting the Adapter to a Network ... . .
  • Page 10 Read/Write Size and IRIX Socket Buffer Size and IRIX Multibuffer Mode and IRIX SGI ProPack Performance Tuning Socket Read and Write Buffer Sizes for SGI ProPack Jumbo Frames and SGI ProPack Read/Write Size and SGI ProPack TCP/IP Socket Buffer Size and SGI ProPack Glossary .

  • Page 11: About This Guide

    About this Guide This guide describes the SGI 10-Gigabit (Gbit) Ethernet network adapter. It operates under the IRIX and SGI ProPack for Linux operating systems, as specified in the operating system release notes. You can use the SGI 10-Gbit Ethernet network adapter in addition to your current adapter.

  • Page 12: Scope Of This Guide

    This guide is written to facilitate installation of the adapter and does not cover detailed points of network configuration. It contains the following chapters: • Chapter 1, "Features and Capabilities of the SGI 10-Gbit Ethernet Network Adapter", summarizes features, cabling, configuration limits, and tools.

  • Page 13: Obtaining Publications

    • If it is installed on your SGI system, you can use InfoSearch, an online tool that provides a more limited set of online books, release notes, and man pages. With an IRIX system, enter infosearch at a command line or select Help >...
  • Page 14 About this Guide This bold, fixed-space font denotes literal items that the user input user enters in interactive sessions. (Output is shown in nonbold, fixed-space font.) 007–4669–003...

  • Page 15: Product Support

    Reader Comments If you have comments about the technical accuracy, content, or organization of this publication, contact SGI. Be sure to include the title and document number of the publication with your comments. (Online, the document number is located in the front matter of the publication.
  • Page 16 About this Guide • Send mail to the following address: Technical Publications 1500 Crittenden Lane, M/S 535 Mountain View, California 94043–1351 SGI values your comments and will respond to them promptly. 007–4669–003...

  • Page 17: Features And Capabilities Of The Sgi 10-Gbit Ethernet Network Adapter

    10 Gbits per second (Gbps), which is theoretically ten times the rate of existing technology. Given the limitations of the bus and the CPUs, realistic performance with the SGI 10-Gbit Ethernet network adapter will not exceed 7 Gbps.

  • Page 18: Features

    1: Features and Capabilities of the SGI 10-Gbit Ethernet Network Adapter • "Configuration Limits" on page 3 • "Tools" on page 3 Features The adapter includes the following features: • Full-duplex Gigabit Ethernet interface as defined in the IEEE P802.3ae approved standard •...

  • Page 19: Configuration Limits

    Consult with your SGI representative to determine the currently supported maximum for your configuration. Tools The SGI 10-Gbit Ethernet network adapter product contains the following IRIX tools: • xg(7F) driver • xgcmd(1M) diagnostic tool to interrogate and control both the driver itself and the...

  • Page 21: Connecting The Adapter To A Network

    Connecting the Adapter to a Network To install the SGI 10-Gbit Ethernet network adapter, refer to the instructions for installing a PCI card in the user’s or owner’s guide that came with the SGI system. To connect the adapter to a network, do the following: 1.
  • Page 22 2: Connecting the Adapter to a Network Fiber-optic connector Figure 2-1 Release 1 Card: Fibre Optic Connections 007–4669–003...
  • Page 23 ® 10-Gigabit Ethernet Network Adapter User’s Guide Fiber-optic connector Figure 2-2 Release 2 Card: Fibre Optic Connections For information about configuring the interfaces, see IRIX Admin: Networking and Mail and The Network Administrators’ Guide. 007–4669–003...

  • Page 25: Operating The Adapter

    Chapter 3 Operating the Adapter This chapter describes various issues that may occur when using the SGI 10-Gbit Ethernet network adapter in a 10-Gbit Ethernet network. It includes the following sections: • "Verifying Functionality" on page 9 • "Resetting the Adapter" on page 13 •...

  • Page 26: Verifying Adapter Recognition

    This section discusses verifying the adapter recognition for IRIX and Linux. IRIX Adapter Recognition Verification Under IRIX, the network interface name for the SGI 10-Gbit Ethernet network adapter is xgN, where N is the number of the adapter: 1 for the first adapter, 2 for the second adapter (if installed), and so on.

  • Page 27: Linux Adapter Recognition Verification

    ® 10-Gigabit Ethernet Network Adapter User’s Guide A line similar to the following should appear, where N is the number of the adapter: 10 Gigabit Ethernet: xgN, module 001c02, 66 MHz PCI bus 2 slot 1 For example, the first adapter would appear as xg1: 10 Gigabit Ethernet: xg1, module 001c02, 66 MHz PCI bus 2 slot 1 Linux Adapter Recognition Verification...

  • Page 28: Enabling The Adapter

    3: Operating the Adapter RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:62 Enabling the Adapter To enable the adapter, enter the following: # ifconfig IPaddress broadcast broadcastaddress netmask netmaskvalue For other systems to see the new address, you must enter the new hosts addresses in DNS or in host files or NIS as required for your system.

  • Page 29: Linux Adapter Configuration Verification

    ® 10-Gigabit Ethernet Network Adapter User’s Guide In this address, the organizationally unique identifier (OUI) of the adapter vendor is represented by the first three sets of numbers (for example, 08:00:69). The last three sets vary, depending on the system.

  • Page 30: Configuration

    3: Operating the Adapter • Linux: # ifconfig ethN down # ifconfig ethN up Configuration IRIX and Linux use different configuration tools. IRIX Configuration The configuration of the adapter is controlled by a number of parameters, which are discussed in the IRIX /etc/config/xgcmd.options file. To change the configuration of your adapter, use the xgcmd command.
  • Page 31 ® 10-Gigabit Ethernet Network Adapter User’s Guide The output will display information about the network adapters currently installed in the system, as follows: Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll 1500 10.50.1 system.name 0 2. To bring down the adapter, enter the following command, where N is the number...

  • Page 33: Performance Tuning

    Chapter 4 Performance Tuning This chapter discusses performance tuning topics for IRIX and SGI ProPack for Linux. For good TCP performance, the socket buffers used by applications must be at least as large as the bandwidth-round trip delay product between the two endpoints.

  • Page 34: Read/Write Size And Irix

    4: Performance Tuning Read/Write Size and IRIX In a point-to-point configuration, use a buffer length of 513920 bytes. In a multiclient configuration, use a buffer length of 64240 bytes. Socket Buffer Size and IRIX Socket buffer size is set either: •...

  • Page 35: Sgi Propack Performance Tuning

    SGI ProPack Performance Tuning This section discusses the following: • "Socket Read and Write Buffer Sizes for SGI ProPack" on page 19 • "Jumbo Frames and SGI ProPack" on page 19 • "Read/Write Size and SGI ProPack" on page 19 •...
  • Page 36 Unless it is required to limit memory usage, SGI recommends that you do not reduce these below the default SGI ProPack values.

  • Page 37: Glossary

    Light-emitting diode, a light on a piece of hardware that indicates status or error conditions. Medium access control, also called the physical layer. MAC address The physical address of the SGI 10-Gbit Ethernet Network adapter, which is distinct from the IP address. 007–4669–003...
  • Page 38 Glossary Maximum Transmission Unit is a configuration parameter that controls the size of the Ethernet frames that the SGI 10-Gigabit Ethernet network adapter can transmit and receive. man (manual) page An online document that describes how to use a particular IRIX command. Also called reference page.

  • Page 39: Index

    3 DMA channels, 2 driver, 3 jumbo frames IRIX performance tuning, 17 MTU sizes supported, 14 SGI ProPack performance tuning, 19 enabling the adapter, 12, 13 sizes supported, 2 /etc/ioconfig.conf, 10 ethtool, 3 LC connector, 2, 5 LC fiber connection, 2...
  • Page 40 Index rmem_max, 21 MAC address, 12 MMR, 3 MTU sizes, 14, 17 multibuffer mode and tuning, 18 SGI ProPack performance tuning, 19 multiclient configuration, 17 signaling, 2 socket buffer size IRIX performance tuning, 18 SGI ProPack performance tuning, 19 standard-size Ethernet frames, 14 netstat, 12–14...
  • Page 41 ® 10-Gigabit Ethernet Network Adapter User’s Guide xgcmd diagnostic tool, 3 xg driver, 3 007–4669–003...

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