To Disable Autonegotiation Mode | Sun Microsystems 4000 specs

By default, autonegotiation mode is enabled for these link parameters. When either of these parameters are in autonegotiation mode, the vca device communicates with the link partner to negotiate a compatible value and flow control capability. When a value other than auto is set for either of these parameters, no negotiation occurs and the link parameter is configured in forced mode. In forced mode, the value for the speed parameter must match between link partners. See “Enabling Autonegotiation or Forced Mode for Link Parameters With the OpenBoot PROM” on page 41.

▼To Disable Autonegotiation Mode

If your network equipment does not support autonegotiation, or if you want to force your network speed, duplex, or link-clockparameters, you can disable the autonegotiation mode on the vca device.

1.Set the following driver parameters to the values that are described in the documentation delivered with your link partner device (for example, a switch):

■adv-1000fdx-cap

■adv-1000hdx-cap

■adv-100fdx-cap

■adv-100hdx-cap

■adv-10fdx-cap

■adv-10hdx-cap

■adv-asmpause-cap

■adv-pause-cap

See TABLE 3-2for the descriptions and possible values of these parameters.

2.Set the adv-autoneg-capparameter to 0.

#ndd -set /dev/vcaNadv-autoneg-cap 0

When you change any ndd link parameter, a message similar to the following appears:

link up 1000 Mbps half duplex

Note –If you disable autonegotiation, you must enable the speed, duplex, and link-clock(1000 Mbps only) parameters to operate in forced mode. For instructions, see “Enabling Autonegotiation or Forced Mode for Link Parameters With the OpenBoot PROM” on page 41.

Chapter 3 Configuring Driver Parameters 37

4000 specifications

Sun Microsystems, a pivotal player in the computing industry during the late 20th and early 21st centuries, was renowned for its innovative hardware and software solutions. Among its notable offerings were the Sun-6000, Sun-5000, and Sun-4000 series, powerful workstations and servers designed for a range of enterprise-level applications.

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