Huawei OptiX RTN 600 Product Description page 37

Note:
DCN communications use the TCP/IP or TP4 protocol.
To cascade NEs, use a network cable or DCN to connect the NE cascade
interface of the upper NE with the NM interface of the lower NE.
II. Gateway Mode
In this mode, there is a gateway NE (GNE), and the Web LCT server is connected to
the NM interface of the GNE directly or through a DCN network. The GNE
communicates with the target NE using embedded control channel (ECC). The GNE
interfaces between the Web LCT server and the target NE to forward messages.
IE terminal
IE terminal
Figure 6-4 Web LCT networking mode (gateway mode)
Note:
The GNE can be any of Huawei OptiX series of transmission products.
ECC employs either the SDH DCC or the microwave DCC for transmission. When
the extended ECC function is enabled, ECC can also be transmitted over DCN.
Figure 6-5 shows a network where there is no DCC channel between the GNE and
the target NE, and a network cable or a DCN network is used to transmit ECC.
Commercial in Confidence
DCN
Web LCT server
Target NE
OptiX RTN 600
Gateway NE
ECC
Product Description
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