Zhone SNE2020G-P Instruction Manual download pdf (Page 7)

Ethernet Duplex Mode: Switch 4

The Ethernet link can be configured at either Full Duplex or Half Duplex mode. Although

both ends of the ETHERNET connection must have the same duplex mode

configuration, it is not necessary for partner providers and subscribers to be configured

the same. Duplex mode does not apply to the SHDSL link.

 Half Duplex Ethernet – Receive and transmit functions are mutually exclusive. Data

transmission occurs in only one direction at a time. Packet collisions are not

unusual.

 Full Duplex Ethernet – The Ethernet line can receive and transmit simultaneously,

effectively increasing aggregate bandwidth from 10 Mbps to 20 Mbps and

preventing packet collisions.

CAUTION:

If you set the SNE Provider or Subscriber unit to Full Duplex, you must also

set your connected Ethernet device to 10 Mb Full Duplex. Do not connect a

Full Duplex Ethernet port to a Half Duplex port or to an Auto-Negotiate port.

Connecting a Half Duplex port (default) to an Auto-Negotiate port will function

properly.

Table 2. Ethernet Duplex Mode Configuration

Switch 4 Duplex Mode

down Half Duplex

up Full Duplex

1 2 3 4 5 6 7 8 9 10 11 12 ... 15 16

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Zhone SNE2020G-P Instruction Manual Page 7