Configuration Process

The configuration of the OSI over DCC solution must comply with the process.

Figure 1 shows the configuration process of the OSI over DCC solution.

Figure 1 Configuration process of the OSI over DCC solution

**Table 1** Description of the configuration process of the OSI over DCC solution
Remarks	Description
1 Configure IDs and NSAP addresses for NEs	Configure the network-wide data, including the NE IDs and the NE NSAP addresses. To change the ID of an NE, see Changing an NE ID. For the process of configuring the NSAP address of an NE, see Setting the NSAP Address for an NE.
2 Configure DCCs for NEs	The DCC protocol type of the line port should be set to OSI. The DCC channel type of the port should be the same as that of the third-party equipment. If the network is comprised of only the OptiX equipment, set the DCC type to D1-D3 (default value). For the configuration process, see Configuring Transparent Transmission of DCC Channels.
3 Configure node types for NEs	You can set the node type to ES, L1-IS, or L2-IS for an NE according to the network planning. For the configuration process, see Configuring the Node Type for an NE.
4 Configure communication protocols and LAPD roles for optical interfaces	If the currently enabled protocol is different from the planned one, you can configure protocol on the Web LCT. For the two ends of a DCC, set the LAPD role to User at one end and to Network at the other end. For the configuration process, see Configuring the Communication Protocol Stack and LAPD Role for an Optical Port.
5 Query routing information	The L1 routing table of the L1 NE has the routes to all the NEs in the area. The L1 routing table of the L2 NE has the routes to all the NEs in the area. The L2 routing table of the L2 NE has the routes to other L2 NEs. The gateway NE has the route to the Web LCT or the routes to the L2 NEs that are in the same area as the Web LCT. The gateway NE has the routes to all non-gateway NEs. For the querying process, see Querying the Route Information of a Node.
6 Create OSI gateway NEs	After configuring the preceding communication parameters and the communication between nodes is normal, create the OSI gateway NE through the TP4 connection mode by using the Web LCT. For the configuration process, see Creating an OSI GNE.