Configuration Process of IP over DCC Solution

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

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

Figure 1 Configuration process of the IP over DCC solution

**Table 1** Description of the configuration process of the IP over DCC solution
Number	Description
1 Modify IDs and IP addresses for NEs	Configure the network-wide data, including the NE IDs and the NE IP addresses. In certain cases, you need to set the subnet masks and default gateways according to the external DCN. To change the ID of an NE, see Changing an NE ID. To change the IP address of an NE, see Setting NE Communication Parameters.
2 Configure DCCs for NEs	The DCC protocol type of the WDM port should be set to TCP/IP. The DCC channel type of the client 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 Check the IP routes of the gateway NE	In the normal situation, a gateway NE should have the routes to all the non-gateway NEs that are managed by the gateway NE and the route to the Web LCT. If certain routes are unavailable, contact Huawei engineers to adjust the OSPF protocol parameters used by the NEs. Make sure that the OSPF function is available to all the NEs. NOTE: The OSPF protocol is enabled by default. For the querying process, see Querying IP Routes.
4 Add IP static routes	See Configuring the IP Static Route for an NE to add static IP routes. Except for the requirement that the Web LCT access the NEs on the entire network through the gateway NE, to meet the upper layer application requirement of accessing remote NEs based on the IP network layer, the proxy ARP function must be enabled on the gateway NE and a static route must be configured on each remote NE to the Web LCT. For the process of enabling the proxy ARP, see Configuring Proxy ARP.