HP HSC-PCI 1000Base-SX User Manual

Using PCI 1000Base-T and HSC/PCI 1000Base-SX

(Gigabit Ethernet)

Manufacturing Part Number : J5683-90002

E0602

U.S.A.

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Preface

The information in this manual is intended for network managers who administer Gigabit Ethernet networks. It is assumed that the Gigabit Ethernet hardware and software have been installed and conﬁgured. For instructions on how to install and conﬁgure Gigabit Ethernet hardwareandsoftware,refertotheQuick Installation Guide, available in the /opt/networkdocs directory on your system and on the web (see “Manuals Available for Gigabit Ethernet” in Chapter 3).

This manual is organized as follows: Chapter 1 Chapter 1, "Introduction," provides an overview of Gigabit Ethernet

and lists its features.

Chapter 2 Chapter 2, "Conﬁguring Gigabit Ethernet Parameters," describes how

to conﬁgure Gigabit Ethernet parameters using the lanadmin(1M) command line interface.

Chapter 3 Chapter 3, "Gigabit Ethernet Resources," provides references to other

useful tools for installing, conﬁguring, and maintaining Gigabit Ethernet.

Chapter 4 Chapter 4, "Troubleshooting," provides ﬂowcharts to help diagnose

Gigabit Ethernet hardware and software problems.

Appendix A Appendix A, "Gigabit Ethernet lanadmin Display," deﬁnes the terms

listed in the lanadmin(1M) command display.

Appendix B Appendix B, "Gigabit Ethernet Card Statistics," gives an explanation

of the card statistics.

Appendix C Appendix C, "Hardware Reference Information," provides information

about the card LEDs, cabling requirements, and card speciﬁcations.

Appendix D Appendix D, "Hardware Regulatory Statements," includes regulatory

statements for the United States, Canada, Australia/New Zealand, Japan, and the European community.

Glossary Provides deﬁnitions of terms used in the manual.

1 Introduction

This chapter gives an overview of the Gigabit Ethernet products and lists its features.

Chapter 1

Introduction

Product Overview

Gigabit Ethernet is a high-performance Ethernet networking solution for HP servers and workstations.

The LAN adapters are data link adapters that support the IEEE 802.3z standard for 1000Base-SX operation over multimode ﬁber, and the IEEE 802.3ab standard for 1000Base-T operation over 4-pair Cat-5 or Cat-5E UTP copper wiring.

The Gigabit Ethernet intelligent adapters are designed to maximize host CPU efﬁciency by performing functions such as TCP/IP checksum, interrupt coalescing, and byte swapping.Bulk data transfers can be optimized with the use of Jumbo Frames; the large 9000 byte maximum transfer unit (MTU) improves system efﬁciency.

1000Base-T brings high bandwidth with 10, 100, and 1000 Mbps speeds, whch makes more processing power available for applications. The tri-speed adapter supports autonegotiation and autosensing. It operates in full-duplex mode at 10, 100, and 1000 Mbps or in half-duplex mode at 10 and 100 Mbps.

1000Base-SX supports full-duplex point-to-point or back-to-back (via switch to adapter or adapter to adapter) operations only. The adapters do not support half-duplex and do not speed negotiate (1000 Mbps operation only), but do perform autonegotiation for other link parameters.

A6847A supports PCI only. Older 1000Base-SX adapters support HSC/PCI. 1000Base-T supports PCI only.

The PCI adapters require a single slot in the host system and support all PCI bus conﬁgurations: 32-bit, 33/66 MHz and 64-bit, 33/66 MHz. (Note: A6794A, A6847A, and A6825A support 64-bit only.)

Features

Features of Gigabit Ethernet include:

• 1000Base-T features: — Triple speed 10/100/1000 Mbps

— Full duplex operation at 10/100/1000 Mbps and half-duplex operation at 10/100

Mbps (no half-duplex support for 1000 Mbps)

— Autonegotiation and autosensing to the highest available link speed

• 1000Base-SX features: — 1000 Mbps

— Full-duplex operation

• Supports IEEE 802.1Q VLAN tagging and IEEE 802.1p Priority Queuing (HP-UX 11i)

• Minimized host CPU utilization — Protocol ofﬂoading through on-board TCP, UDP, and IP checksum calculations

— Adaptive interrupt coalescence based on trafﬁc load

Chapter 1

Introduction

Product Overview

• Jumbo Frame support — Large 9000 byte maximum transfer unit (MTU) for improved efﬁciency and

performance with bulk data transfer

— Supported only at 1000Mbps interface (link partner must also support Jumbo

Frames)

• SNMP (MIB-II) support

• MC/ServiceGuard and Auto-Port Aggregation (APA) support for high availability Note: MC/ServiceGuard is not supported on HP-UX 11iv1.5. APA is not supported on

HP-UX 11i v1.5 and 11i v1.6.

• Conﬁguration support through SAM

• Promiscuous mode (link and SAP) inbound and outbound support

• Supports TCP/IP, NFS, and DLPI applications. Ethernet and SNAP encapsulations are supported.

• Supports OLA/R (Online Addition and Replacement) (HP-UX 11i, PCI only) Note that SX and T cards are not considered to be like cards for OLA/R, that is, you

cannot replace an SX card with a T card, and vice versa. HP does not support OLA/R on A6794A although HP-UX tools will allow the device

to be suspended and resumed.

Performance on A6794A, A6847A, and A6825A

TCP performance is improved with better throughput on inbound and bidirectional trafﬁc and better request/response rate.

Differences Between gelan and igelan

The differences between gelan and igelan are:

• Supported platforms - see Table 1-1, “List of Gigabit Ethernet Products”.

• LED behavior - see Table C-1, “LED Description and Status for 1000Base-SX” and Table C-2, “LED Description and Status for 1000Base-T”.

Chapter 1

Introduction

About this Manual

The information in this manual applies to the following Gigabit Ethernet products:

Table 1-1 List of Gigabit Ethernet Products

Product Description

A4924A HSC 1000Base-SX for

K-Class

A4925A HSC 1000Base-SX for

D/R-Class

A4926A A4929A

A6794A 1000Base-T/SCSI igelan rp7410 server core I/O

PCI 1000Base-SX PCI 1000Base-T

Driver

Name

gelan K-Class server 10.20, 11.0, and 11i

gelan D350 and above, R380

gelan B-Class except B180L

Supported Systems

and R390 servers

andbelow,C-Classexcept C1xx, J2240 and above workstations and rp2400 (A-Class) server

rp5400 series (L-Class), rp7400 (N-Class), and V-Class servers

SD (Superdome), rp7410, and rp8400 servers

rx4610 and rx9610 servers

See Note

Operating

System

10.20, 11.0, and 11i

11.0 and 11i

11i

11i v1.5, 11i v1.6 11i, 64-bit only

11i v1.6

A6847A A6825A

Note: For information on IPF (ItaniumTM Processor Family) platforms supported on HP-UX 11i v1.6, see the Gigabit Ethernet support web page. Log on to itrc.hp.com and click on “navigate knowledge trees and response center FAQs” under “maintenance and support” to go to the Knowledge Tree area, then navigate to Networks/hp-ux networking/lan/gigabit ethernet/technical support.

PCI 1000Base-SX PCI 1000Base-T

igelan B1000and higher, C3000

and higher, and J5000 and higher workstations

rp5400 series (L-Class), rp7400 (N-Class), and rp2400 series (A400 and higher) servers

SD (Superdome), rp7410, and rp8400 servers

See Note

11.0 and 11i, 64-bit only

11i, 64-bit only

11i v1.6

Chapter 1

Introduction

About this Manual

This manual does not include step-by-step instructions on how to install and conﬁgure the Gigabit Ethernet hardware and software. Those instructions are provided in the Quick Installation Guide, which is available in the /opt/networkdocs directory on your system and on the web (see “Manuals Available for Gigabit Ethernet” on page 21).

Chapter 1

Introduction

About this Manual

Chapter 1

2 Conﬁguring Gigabit Ethernet

Parameters

This chapter describes how to conﬁgure the Gigabit Ethernet parameters using the lanadmin(1M) command line interface.

Chapter 2

Conﬁguring Gigabit Ethernet Parameters

Understanding the Gigabit Ethernet Parameters

Several parameters can be conﬁgured using either the lanadmin(1M) command line interface or the graphical user interface provided by the System Administration Manager (SAM). Refer to the next section, “Using the lanadmin Tool with Gigabit Ethernet” for details on the use of the lanadmin(1M) command. The following parameters can be conﬁgured:

Generic Parameters

• Ethernet Station Address The Gigabit Ethernet cards come preprogrammed with an Ethernet Station Address

in the read-only memory. This cannot be modiﬁed. However, the station address actually used by the card for sending and receiving network packets, also known as the MAC Address, can be set via lanadmin or SAM.

• Maximum Transmission Unit (MTU) The MTU can be either the regular Ethernet MTU (1500 bytes) or the Jumbo Frame

MTU (9000 bytes). For 1000Base-T, jumbo frames can be conﬁgured only when the link speed is 1000 Mbps.

Link Parameters

• Speed, Duplexity, and Autonegotiation While 1000Base-SX operates only at 1000 Mbps in full-duplex mode, 1000Base-T

operates at 10 or 100 Mbps in either half-duplex or full-duplex mode and also at 1000 Mbps in full-duplex mode.

The speed and duplexity of 1000Base-SX cannot be modiﬁed, but its ability to autonegotiate can be turned on and off for other link parameters. Thus, autonegotiation has no effect on the speed or duplexity of 1000Base-SX.

1000Base-T can be manually set to 10 or 100 Mbps but not 1000 Mbps. To achieve gigabit speed, it must be allowed to autonegotiate with its link partner,and provided the partner can autonegotiate,1000Base-Twilloperateatthehighestcommonspeed and duplexity. The following table summarizes the valid settings for 1000Base-T:

Chapter 2

Conﬁguring Gigabit Ethernet Parameters

Understanding the Gigabit Ethernet Parameters

Speed Duplexity Autonegotiation

10 Half Off

10 Full Off 100 Half Off 100 Full Off

1000* N/A* On

*When autonegotiation is on, 1000Base-T will autonegotiate with its link partner; then, if its partner also autonegotiates and can attain a speed of 1000 Mbps, 1000Base-T will operate at 1000 Mpbs full-duplex (it is not designed to operate at 1000 Mbps half-duplex).

NOTE Partners on a link must be conﬁgured to have the same setting, that is, either both

must autonegotiate or both must be set to the same manual setting. For example, if the card is set to 100 Mbps full-duplex, the link partner must also be set to 100 Mbps full-duplex. This will help ensure operation without degraded performance.

• Receive ﬂow control Flow control allows use of ﬂow control negotiation and sending and receiving of

pause frames. When the ﬂow control parameter is on, the card receives and manages pause frames sent by the link partner. When the ﬂow control parameter is off, the card will silently discard these pause frames. The card cannot be conﬁgured to send pause frames.

Performance Tuning Parameters

• Send Buffer Coalescing Threshold

• Receive Buffer Coalescing Threshold

• Send Interrupt Coalescing Ticks

• Receive Interrupt Coalescing Ticks

CAUTION These features are for advanced users. If you set these parameters and you do not

understand what they do, you may have unpredictable results. It is recommended to use the default settings.

When the card transmits or receives a frame, the system must be notiﬁed of the event. If the card interrupts the system for each transmitted and received frame, the result is a high degree of processor overhead. To prevent that, Gigabit Ethernet provides a feature called Interrupt Coalescence. Effective use of this feature can reduce system overhead and improve performance.

Chapter 2

Interrupt Coalescence essentially means that the card interrupts the system after sending or receiving a few frames. The number of frames after which the card interrupts the processor can be tuned independently for both send and receive. The tuning can be speciﬁed via two parameters each for send and receive, so that there are four parameters

Conﬁguring Gigabit Ethernet Parameters

Understanding the Gigabit Ethernet Parameters

in all. One of the two parameters speciﬁes the number of data buffers that the card must transmit (or receive) before interrupting and the other speciﬁes the number of system clock ticks that must elapse before interrupting.

The four tuning parameters are summarized in the following table.

Table 2-1 Performance Tuning Parameters

Name Range Default Units

send_max_bufs 1 – 128 16 (for gelan)

10 (for igelan) recv_max_bufs 1 – 256 1 # of buffers send_coal_ticks 0 – 10000000 1000 (for gelan)

150 (for igelan) recv_coal_ticks 0 – 10000000 0 microseconds

A send interrupt is generated by the card to the host when either:

• the number of buffers sent by the card since the previous send interrupt equals

send_max_bufs or

• the time that has elapsed since the previous send interrupt equals send_coal_ticks (a value of zero disables timer-based interrupt coalescing),

whichever occurs ﬁrst. A receive interrupt is generated by the card to the host when either:

• the number of frames received by the card since the previous receive interrupt equals recv_max_bufs

# of buffers

microseconds

• the time that has elapsed since the previous receive interrupt equals recv_coal_ticks (a value of zero disables timer-based interrupt coalescing),

whichever occurs ﬁrst.

Chapter 2

Conﬁguring Gigabit Ethernet Parameters

Using the lanadmin Tool with Gigabit Ethernet

This section explains the options available in lanadmin to support the Gigabit Ethernet driver and how to use them. The lanadmin(1M) tool is used to display and set parameters, as speciﬁed by the following commands:

NOTE When your system is rebooted, settings that were made via the lanadmin(1M) command

will be lost. To retain conﬁguration settings permanently in the conﬁguration ﬁle (/etc/rc.config.d/hpgelanconf or /etc/rc.config.d/hpigelanconf), use the SAM utility or manually edit the conﬁguration ﬁle.

To display the card’s station address, execute:

$ lanadmin -a

To set the card’s station address, execute:

$ lanadmin -A

where nmid is the Network Management Identiﬁer (NMID) (for HP-UX 10.20) and ppa is the Card Instance Number (also known as physical point of attachment or PPA) (for HP-UX 11.0 and later). Both the NMID and PPAmaybeobtained from the lanscan(1M) output.

To display the MTU, execute:

$ lanadmin -m

To set the MTU, execute:

$ lanadmin -M

On HP-UX 10.20, the setting of the MTU should be followed by conﬁguring the interface with the appropriate IP address using ifconfig(1M). See the ifconfig man page for details. The change in MTU should be veriﬁed, on all HP-UX operating systems, by executing:

$ netstat -rn

To display link parameters, execute:

nmid/ppa

station_addr nmid/ppa

nmid/ppa

mtu_size nmid/ppa

Chapter 2

$ lanadmin -x

To set link parameters, execute:

$ lanadmin -X

where

option

option nmid/ppa

speciﬁes the operation to be carried out.

Conﬁguring Gigabit Ethernet Parameters

Using the lanadmin Tool with Gigabit Ethernet

Displaying Values

The command $ lanadmin -x (or -X) help used to display values.

Option Display

help List of -x or -X options speed Speed and duplexity of the link fctrl Whether Receive Flow Control is enabled or not send_max_bufs Value of send buffer coalescing threshold recv_max_bufs Value of receive buffer coalescing threshold send_coal_ticks Value of send interrupt coalescing ticks recv_coal_ticks Value of receive interrupt coalescing ticks stats drv Driver and adapter statistics card_info Adapter and driver revision and settings

NOTE If option is not speciﬁed, then the speed, duplexity, and autonegotiation settings are

displayed.

nmid/ppa

displays a list of valid options

Examples Card Information To display the card information, execute:

$ lanadmin -x card_info

*********** Version Information *********** Driver version: B.10.20.11 Firmware version: 12.4.5 Chip version: 0x6 PCI Sub-System ID: 0x106f (1000Base-SX) PCI Sub-Vendor ID: 0x103c Board revision: C Software Key: 6 Engineering Date Code: B-3845

*********** Card Setting *********** Driver State: GELAN_ONLINE Auto Negotiation: On Flow Control: On Send Max Buf Descriptors: 16 Recv Max Buf Descriptors: 1 Send Coalesced Ticks: 1000 Recv Coalesced Ticks: 0

nmid/ppa

Chapter 2

Using the lanadmin Tool with Gigabit Ethernet

Card Statistics To display the card statistics, execute:

Conﬁguring Gigabit Ethernet Parameters

$ lanadmin -x stats drv

NOTE See Appendix B for a sample output and explanation of the card statistics.

Send Buffer Coalescing To display the send buffer coalescing threshold, execute: $ lanadmin -x send_max_bufs

Send buffer coalescing threshold = 16

Receive Interrupt Coalescing To display the receive interrupt coalescing ticks, execute:

$ lanadmin -x recv_coal_ticks

Receive interrupt coalescing ticks = 0

Flow Control To display the ﬂow control setting, execute: $ lanadmin -x fctrl

Flow control is enabled

nmid/ppa

Setting Values

The command $ lanadmin -X (or -x) help used to set values.

Option Setting

help Lists -X or -x options auto_on Turns on auto-negotiation mode auto_off Turns off autonegotiation mode for a 1000Base-SX fctrl on Turns on receive ﬂow control fctrl off Turns off receive ﬂow control 10hd Sets speed of a 1000Base-T to 10 Mbps half-duplex 10fd Sets speed of a 1000Base-T to 10 Mbps full-duplex 100hd Sets speed of a 1000Base-T to 100 Mbps half-duplex 100fd Sets speed of a 1000Base-T to 100 Mbps full-duplex send_max_bufs* Sets send buffer coalescing threshold [1 – 128] recv_max_bufs* Sets receive buffer coalescing threshold [1 – 256]

nmid/ppa

displays a list of valid options

Chapter 2

send_coal_ticks* Sets send interrupt coalescing ticks [0 – 10000000]

Conﬁguring Gigabit Ethernet Parameters

Using the lanadmin Tool with Gigabit Ethernet

Option Setting

recv_coal_ticks* Sets receive interrupt coalescing ticks [0 – 10000000] stats clear Clears all driver and adapter statistics * These options require the desired value to be speciﬁed after the option name.

Examples Speed To set the speed to 100 Mbps full-duplex on 1000Base-T, execute:

$ lanadmin -X 100fd

NOTE The lanadmin -S option to set the speed is not supported on Gigabit Ethernet.

Stats Clear To clear all driver and card statistics, execute: $ lanadmin -X stats clear

Buffer Coalescing Threshold To set the send buffer coalescing threshold, execute: $ lanadmin -X send_max_bufs 32 Note that the tuning option send_max_bufs requires the additional option 32 (the

coalescing threshold).

Interrupt Coalescing Ticks To set the send interrupt coalescing ticks, execute: $ lanadmin -X send_coal_ticks 2000 Note that the tuning option send_coal_ticks requires the additional option 2000 (the

number of coalescing ticks).

nmid/ppa

Chapter 2

3 Gigabit Ethernet Resources

This chapter provides references to other useful tools for installing, conﬁguring, and maintaining Gigabit Ethernet.

Chapter 3

Gigabit Ethernet Resources

HP-UX Manual Reference Pages

While installing, conﬁguring, or troubleshooting Gigabit Ethernet, you may need to refer to any of the following online manual reference pages (man pages) for useful HP-UX operating system or Gigabit Ethernet commands. To display a man page, type the following at the system prompt: man command name. For example, man arp.

• arp(1M) displays and modiﬁes the Internet-to-station address mapping tables used by the Address Resolution Protocol.

• hosts(4) is a database that contains a single line entry for each host name entry.

• ifconfig(1M) assigns an address to a network interface and conﬁgures and displays network parameters.

• ioscan(1M) scans system hardware, usable I/O system devices, or kernel I/O system data structures as appropriate, and lists the results.

• lanadmin(1M) resets or reports the status of the LAN card.

• lanconfig(1M) in HP-UX 10.20 sets/resets the packet encapsulation method for a network interface.

• lanscan(1M) displays information about LAN cards that are successfully bound to the system.

• linkloop(1M) veriﬁes network connectivity through the Data Link Layer (OSI Layer 2).

• netfmt(1M) formats common tracing and logging binary ﬁles.

• netstat(1) provides network statistics and information about network connections.

• nettl(1M) logs network events and traces packets as they enter and exit the Gigabit Ethernet driver.

• ping(1M) veriﬁes network connectivity through the Network Layer (OSI Layer 3) and reports the round-trip time of communications between the local and remote hosts.

• rad(1M) in HP-UX 11i performs OLA/R functions without any comprehensive checks.

• route(1M) adds and deletes entries to the network routing table.

• sam(1M) conﬁgures networking software.

• swinstall(1M)loads software ﬁlesets.

• swverify(1M)veriﬁes software installation.

Chapter 3

Gigabit Ethernet Resources

Manuals Available for Gigabit Ethernet

Refer to the following Quick Install Guide for step-by-step instructions on how to install and conﬁgure Gigabit Ethernet hardware and software. This guide is available on the web at http://docs.hp.com under “Networking and Communications ” and in the /opt/networkdocs directory on your system.

• For A4924A, A4925A, A4926A, and A4929A:

PCI 1000Base-T and HSC/PCI 1000Base-SX/9000 Quick Installation

• For A6794A, A6847A and A6825A:

PCI 1000Base-T and 1000Base-SX Quick Installation and Conﬁguration Guide

NOTE Forcompletecomponentinstallationinstructions, refer to the Service Guide HP 9000

Server manual for your server or the appropriate Owner’s Guide for your

workstation.

Other Useful Manuals

The following manuals also provide useful information. They are available on the web at http://docs.hp.com.

• Installing and Administering LAN/9000 Software Provides information on installing and administering the LAN product. It also

includes information on conﬁguring other HP-UX link products.

• Conﬁguring HP-UX For Peripherals Provides detailed information on using OLA/R (Online Addition and Replacement).

Chapter 3

Gigabit Ethernet Resources

Error Messages

Gigabit Ethernet comes with an online message catalog that is used to report networking problems. You must use the nettl logging and tracing utility to display the probable cause and action for a message.

Logging Messages

Gigabit Ethernet uses the nettl(1M) logging and tracing facility supplied with HP-UX. You may access the logging and tracing utility using either the graphical user interface (GUI) version or the command line interface.

Features of the GUI version, which are now a part of your HP 9000 system, include:

• An interface which guides you through logging and tracing tasks.

• An interface which allows you to create and format reports.

• The capability to collect logging and tracing subsystem-speciﬁc information.

• Report screens which are updated instantaneously with current logging and tracing information by the subsystem.

• Context-sensitive on-line help.

To access the GUI version of the logging and tracing utility, execute:

nettladm

See the nettladm(1M) man page for information on using the GUI version, or the nettl(1M) man page for information on using the command line interface.

Listed below are some example commands using the command line interface.

• To examine the log ﬁle with cause and action descriptions, execute:

netfmt -v -f /var/adm/nettl.LOG00 | more netfmt -v -f /var/adm/nettl.LOG000 | more (for HP-UX 11i and later)

The -v option enables the reporting of available cause and action descriptions for each log message. A sample log message using the -v option is shown below.

***********Gigabit Ethernet LAN/9000 Networking***********

Timestamp : Mon Aug 3 PDT 1998 18:37:16.175754 Process ID : [ICS] Subsystem:GELAN User ID ( UID ) : -1 Log Class:DISASTER Device ID : 3 Path ID: 0 Connection ID : 0 Log Instance: 0

• To examine just the log messages in the log ﬁle, execute:

netfmt -f /var/adm/nettl.LOG00 netfmt -f /var/adm/nettl.LOG000 (for HP-UX 11i and later)

• To check network logging and tracing status, execute:

Chapter 3

Gigabit Ethernet Resources

Logging Messages

nettl -status

• To start Gigabit Ethernet tracing to the ﬁle /tmp/tracefile.TRC0, execute:

nettl -traceon all -entity gelan -file /tmp/tracefile

nettl -traceon all -entity igelan -file /tmp/tracefile

Note: nettl(1m) adds the .TRC0 postﬁx for you.

• To stop Gigabit Ethernet tracing, execute:

nettl -traceoff -entity gelan

nettl -traceoff -entity igelan

• To format the Gigabit Ethernet trace ﬁle into the ﬁle /tmp/traceout, execute:

netfmt -f /tmp/tracefile.TRC0 > /tmp/traceout

Refer to the netfmt(1M)man page for further information on how to create a ﬁlter for trace formatting.

Chapter 3

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