Installation guide

as follows:

nr_max_retries=1 //The default is 4

netrain_timeout=100 //The default is 1000

Alternatively, you can set the nrmaxretry and nrtmoisr values,

respectively, when you issue the ifconfig command to create the

NetRAIN set.

See sys_attrs_netrain(5) and ifconfig(8) for information on

NetRAIN parameters.

Regardless of the solution you choose, if the host system’s network interface

cards (NICs) are connected to a layer 2 switch or bridge that is running a

Spanning Tree algorithm, the Spanning Tree conﬁguration parameters on the

switch/bridge might dictate the failover time. In this case, the actual behavior

of the TCP retry might depend on the switch implementation and

conﬁguration. See the documentation accompanying the switch/bridge for

information.

4.4.10 Sender Address Problem When Using DECnet Mail

Tru64 UNIX Version 4.0F includes a new version of the sendmail

application, which includes the ability to specify an owner for a mail alias,

which can cause the identity of the sender on the mailer command line to be

different from the identity of the sender in the From: header line. The end

result is that the recipient of the mail might see the wrong address identiﬁed

as the sender of the message.

If this problem occurs, the corrective action is to create a ﬁle,

/var/dna/defaults/Dnetrc.defaults, containing the following

lines:

mail11.SenderFromHeader: on

mail11.FromLineToUse: From

The Dnetrc.defaults ﬁle is a conﬁguration ﬁle read by the mail11

mailer. The speciﬁed options tell mail11 to take the sender id from the

header lines, and speciﬁcally to get it from the From: line.

After you create the Dnetrc.defaults ﬁle, obtain the latest version of

mail11v3 and replace the current version in the /usr/sbin directory.

The mail11v3 mailer understands the option speciﬁed and uses the

appropriate sender id.

4.4.11 DHCP Database Migration (joind and bootpd)

Starting with Tru64 UNIX Version 4.0F, DHCP database ﬁles are stored in

an entirely new format that is incompatible with older formats. The

operating system ships with an online document, provided by JOIN Systems,

that explains the reasons behind this change, lists the ﬁles that are affected,

4–32 Base System Software Notes