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Man Pages


Manual Reference Pages  -  TXP (4)

NAME

txp - 3Com 3XP Typhoon/Sidewinder (3CR990) Ethernet interface

CONTENTS

Synopsis
Description
Hardware
See Also
History

SYNOPSIS

To compile this driver into the kernel, place the following line in your kernel configuration file:


.Cd device txp

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

if_txp_load="YES"

DESCRIPTION

The txp interface provides access to the 10Mb/s and 100Mb/s Ethernet networks via the 3Com Typhoon/Sidewinder chipset.

Basic Ethernet functions are provided as well as support for vlan(4) tag removal and insertion assistance, receive ip(4), tcp(4), and udp(4) checksum offloading, and transmit ip(4) checksum offloading. There is currently no support for transmit tcp(4) or udp(4) checksum offloading, tcp(4) segmentation, nor ipsec(4) acceleration.

When a txp interface is brought up, by default, it will attempt to auto-negotiate the link speed and duplex mode. The speeds, in order of attempt, are: 100Mb/s Full Duplex, 100Mb/s Half Duplex, 10 Mb/s Full Duplex, and 10 Mb/s Half Duplex.

The txp supports several media types, which are selected via the ifconfig(8) command. The supported media types are:
media autoselect
  Attempt to autoselect the media type (default)
media 100baseTX mediaopt full-duplex
  Use 100baseTX, full duplex
media 100baseTX [mediaopt half-duplex]
  Use 100baseTX, half duplex
media 10baseT mediaopt full-duplex
  Use 10baseT, full duplex
media 10baseT [mediaopt half-duplex]
  Use 10baseT, half duplex

HARDWARE

The txp driver supports the following cards:

  • 3Com 3CR990-TX-95
  • 3Com 3CR990-TX-97
  • 3Com 3cR990B-TXM
  • 3Com 3CR990SVR95
  • 3Com 3CR990SVR97
  • 3Com 3cR990B-SRV

SEE ALSO

altq(4), arp(4), inet(4), intro(4), ip(4), miibus(4), tcp(4), udp(4), vlan(4), ifconfig(8)

HISTORY

The txp driver first appeared in
.Ox 2.9 .
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