System and method for realizing remote disaster recovery of optical line terminal (OLT)
A remote disaster recovery and relational technology, applied in the field of passive optical network, can solve problems such as difficult service switching, inability to connect uplink ports, increase fault points, etc., and achieve the goals of saving interconnection fibers, complete protection measures, and speeding up service recovery Effect
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[0032] Below, refer to the attached Figure 1-9 The system and method for realizing OLT remote disaster recovery of the present invention are described in detail.
[0033] The system for implementing OLT remote disaster recovery of the present invention includes an optical network unit (ONU, Optical Network Unit), an optical splitter node, and at least two optical line terminal OLTs. The OLT is a Gigabit-capable Passive Optical Network (GPON) OLT. Networking such as figure 1 shown. Each OLT has a PON port connected to the optical splitter, and the ONU is connected to the branch optical path of the optical splitter. The two PON ports of the OLT are configured in the protection group. Under normal working conditions, one of the PONs works as Master (main) , the working state of the other PON port is Standby (slave), and the ONU acts as a bridge between the master and slave PON to realize configuration data synchronization. In addition, the slave PON port maintains the registr...
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