NEC ElectraElite IPK, Руководство по программированию

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3 - 52 Advanced Applications
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Document Revision 4 Electra Elite IPK
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4 HUB(8) VLAN
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ONFIGURATION
4.1 General
The HUB(8)-U( ) ETU is an optional Ethernet Interface for the Electra Elite IPK
KSU that supports eight Ethernet ports with status and activity indicators. A
HUB is a switching Point for data that comes together from individual ports. A
switch determines the port where the data should be forwarded and regulates
transmission. This ETU is an efficient platform when multiple ETUs that
require Ethernet connection are installed in the Electra Elite IPK KSU. One
port can be a source port and another port can be a target port to mirror the
source and monitor data traffic.
4.2 Memory Block Descriptions
Auto Negotiation Yes/No Selection (Memory Block 1-16-00)
Use this Memory Block to specify whether or not Auto Negotiation is enabled
for each port of the HUB(8)-U( ) ETU. When No is selected, Memory Block
1-16-01 (Port Speed Selection 10/100 Base -T) and Memory Block 1-16-02
(Port Duplex Mode Selection) are used. When equipment with auto
negotiation function is connected to a port, ensure that the YS is set for this
Memory Block.
Port Speed Selection – 10/100 Base-T (Memory Block 1-16-01)
When Memory Block 1-16-00 (Auto Negotiation Yes/No Selection) is set to
NO, use this Memory Block to specify the Ethernet port speed as 10 Mbps or
100 Mbps for each port of each HUB(8)-U( ) ETU.
Port Duplex Mode Selection (Memory Block 1-16-02)
When Memory Block 1-16-00 (Auto Negotiation Yes/No Selection) is set to
NO, use this Memory Block to specify duplex mode (HALF or FULL) for each
port of each HUB(8)-U( ) ETU.
MDI/MDIX Mode Selection (Memory Block 1-16-03)
Use this Memory Block to specify an MDI/MDIX mode for each port of each
HUB(8)-U( ) ETU.