Ethernet-Specific Information

For releases prior to HP-UX 11i: nettl.LOG-00 and nettl.LOG-01

For release HP-UX 11i and later: nettl.LOG000 and nettl.LOG001

An interface that guides you through logging and tracing tasks

An interface that allows you to create and format reports

The capability to collect logging and tracing subsystem-specific information

Report screens that are updated instantaneously with current logging and tracing information by the subsystem

Context-sensitive online help

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

$ netfmt -v -f /var/adm/nettl.LOG000 | more

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

***********Gigabit Ethernet LAN 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, enter:

$ netfmt -f /var/adm/nettl.LOG000

To check network logging and tracing status, enter:

$ nettl -status

To start Ethernet tracing on the file /tmp/tracefile.TRC000, enter:

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

or

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

Note: nettl(1M) adds the .TRC000 postfix for you.

To stop Ethernet tracing, enter:

$ nettl -traceoff  -entity gelan

or

$ nettl -traceoff  -entity igelan

To format the Ethernet trace file into the file /tmp/traceout, enter:

$ netfmt -f /tmp/tracefile.TRC000 > /tmp/traceout

Check the network cables. Make sure the network cable connections are secure and that the cables are not damaged. If you find any connections that are loose, or cables that are damaged, fix the problem and then see if your computer can communicate on the network.

Check to be sure that configuration settings are correct. If you suspect that a card is faulty, do the following:

Verify that the device at the other end of the connecting cable is an Ethernet device, and that it is receiving power.

Check to be sure that the connecting cable is of the correct category and length.

Check the Link LED on the La card bulkhead. If the Link LED is ON and there still is a fault, at the HP-UX command-line, enter: dmesg and view the output on your screen to see if any error messages exist.

A defective cable

A cable not connected to an active hub or switch

A defective card

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 La card. Also used for configuring virtual LANs (VLANs), setting TCP Segmentation Offload (TSO) on or off, and getting 64-bit MIB statistics.

lanscan(1M) displays information about La 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 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 OL* functions without any comprehensive checks.

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

sam(1M) configures the networking software.

swinstall(1M) loads software filesets.

swverify(1M) verifies the software installation.

swlist(1M) verifies the driver software installation.

vlan(1M) provides over of managing virtual LANs (VLANs).

For the A4926A and A4929A products:

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

For the A6794A, A6847A and A6825A products:

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

	NOTE: For complete component installation instructions, see the Service Guide HP 9000 Server manual for your server or the appropriate Owner’s Guide for your workstation.

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.

The following manuals provide details on how to replace a card without shutting down the entire system: