netmgr_iether.1m (2011 09)

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nwmgr_iether(1M) nwmgr_iether(1M)

Default: On (case insensitive).

send_coal_ticks

Max Send Coalesce Ticks: Maximum time for the NIC to wait after sending a

frame before it raises an interrupt.

NOTE: Modifying this conﬁguration parameter to non-default values is no

longer recommended for PCI-X cards and IS NOT supported for PCIe cards.

Minimum: 0

Maximum: 65535

Default: 150

send_max_bufs

Max Send Buffers: Maximum number of send descriptors for the NIC to

coalesce before it raises an interrupt.

NOTE: Modifying this conﬁguration parameter to non-default values is no

longer recommended for PCI-X cards and IS NOT supported for PCIe cards.

Minimum: 1

Maximum: 63

Default: 1

speed Speed, Duplex and Autonegotiation: Actual values of speed, duplex and

autonegotiation if the link is up; the conﬁgured values otherwise.

Note that, for 1000Base-SX, the speed is always ﬁxed at 1 Gbps, and the

duplex is always Full. Only the autonegotiation can be turned on or off. So,

the valid values to set for speed in the command line for 1000Base-SX are

auto_on and auto_off (case insensitive).

For 1000Base-T, it is essential that the link partner have the same speed,

duplex and autonegotiation settings as the NIC being conﬁgured. The speed

can be forced to 10 or 100 Mbps, with Full or Half Duplex, with autonegotia-

tion off. The speed can also be forced to 1000 Mbps with autonegotiation on

and Full Duplex only. This is done by setting speed to one of

10HD, 10FD,

100HD, 100FD,or1000FD (case insensitive).

auto_on is the option used for auto-negotiation purpose. Here the speed of

the link depends upon the link partners ability and its speed setting.

In summary, the valid values to set for speed in the command line for

1000Base-T are:

10HD, 10FD, 100HD, 100FD, 1000FD, and auto_on.

The speed value can take one of three formats. In the human-readable for-

mat, it is of the form:

[speed {

Full | Half} Duplex](Autonegotiation :

{On | Off})

Example:

1 Gbps Full Duplex (Autonegotiation : On).

Note that the speed and duplex might not be present in some situations.

In the script-friendly output, the speed value is of the form:

[speed {

FD|HD}] auto_{on|off}

Examples:

1000FD auto_on

100HD auto_off

Note that the speed and duplex are optional in the scriptable output also: they

might not be present in some situations.

In the conﬁguration ﬁle, there is an additional twist, because there are

separate variables for speed-duplex and autonegotiation. For 1000Base-T, the

HP_IETHER variable can contain one of the values

10HD, 10FD, 100HD,

100FD, and auto_on (same as the command line values). The

HP_IETHER_AUTONEG variable is of no relevance.

For 1000Base-SX, the HP_IETHER_SPEED is irrelevant, while the

HP_IETHER_AUTONEG has values of either Off (same as 0) or On (same as

1), indicating autonegotiation being off or on, respectively.

4 Hewlett-Packard Company − 4 − HP-UX 11i Version 3: September 2011