System Working Principle; Hardware Principle - Zte ZXA10 S300 Technical Manual

the DCC channel defined in the SDH frame structure is
adopted (D1~D3 and D4~D12 can be adopted and the
maximum available bandwidth reaches 768kbit/s). HDLC is
adopted at the link layer. At the network layer, a user-
defined routing protocol is adopted, which is a simplified
version of OSPF. It adopts some routing principles of the
OSPF and provides fast route convergence function. At the
application layer, a user-defined message structure is
adopted to transmit the messages between the NEs. The ECC
protocol stack is applied to the 155 M, 622 M and 2.5 G
optical interfaces in THE ZXA10 S300. It can interwork with
the upgraded ECC protocol stack of the original built-in 155
M SDH device of ZXA10-AS1 and ZXA10-AS2.

System Working Principle

The system working principle contains hardware principle and
software principle.

Hardware Principle

The overall hardware of the system is shown in Figure 6.
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Chapter 1 Overview
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