HP 100Base-T Manuel d'installation télécharger pdf (Page 15)

OpenVMS Installation

Installing the Adapter

Chapter 2

The LAN device characteristics that can be set include speed, duplex mode, flow control, and whether

jumbo frames are enabled. The MC LANCP SET DEVICE and LANCP DEFINE DEVICE commands

modify these settings.

2. Set the desired characteristics according to the Network Configuration worksheet (see Table 2-1). For

example, use this command:

MC LANCP DEFINE DEVICE devname /SPEED=1000 /FULL /AUTONEGOTIATE

To make any configuration values permanent, enter the values in the LANCP permanent device database.

Optional Step: Defining Jumbo Frame Size

(Jumbo Frames Size (Jumbo frames are supported only at 1000 Mbit/s)

Jumbo frames for the LAN driver on OpenVMS V8.2 have an mtu_size in the range of 1518-8192 bytes.

Jumbo frames are enabled system-wide by setting bit 6 in the system parameter LAN_FLAGS. To enable

jumbo frames on individual devices, use the LANCP command SET DEVICE/JUMBO. To disable jumbo

frames, use the LANCP command SET DEVICE/NOJUMBO.

To preserve the setting of jumbo frames across boots, when using LANCP, define the setting in the LANCP

permanent device database, using the command DEFINE DEVICE/JUMBO.

Table 2-1 Network Card Configuration Worksheet

Data Type

Required

Optional

Default

Where to

Configure

Example Your System

Station

address

Built-in

and

cannot be

changed

As shown on

card

not

configurable

0x0060b0c4012f

Link

configuration

Optional Autonegotiating LANCP MC LANCP SET

DEVICE

/AUTONEGOTIA

Link

speed/duplex

mode

Optional Autonegotiating Hub or

switch

LANCP

a. The speed configuration of the 1000Base-T can be 10, 100, or 1000 Mbps and is determined by the

speed setting of the hub or switch port to which the card is connected. The card automatically

senses this speed if autonegotiation is enabled. The card only runs at one speed at a time.

MC LANCP SET

DEVICE/

SPEED=1000

/FULL

MTU

(Maximum

Transmission

Unit): Jumbo

Frames

Optional 1518 Bytes LANCP MC LANCP SET

DEVICE/JUMBO

Receive flow

control

Optional On LANCP MC LANCP SET

DEVICE/FLOW

1 2 ... 10 11 12 13 14 15 16 17 18 19 20

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HP 100Base-T Manuel d'installation Page 15

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