The DCN contains two networking modes, which are inband networking and outband networking.
Inband DCN Scheme
The inband DCN networking involves using the service channels provided by the managed devices to manage the devices in the network. In this mode, the network management information is transmitted through the service channels of the devices.
The inband DCN networking is flexible and does not require additional devices. Figure 1 shows the networking diagram.
NOTE: - The devices managed by the U2000 Web LCT are connected to the IP core network. The U2000 Web LCT center only needs to be connected to the nearby IP devices in the IP core network. You can manage all the devices in the network by configuring the route.
- The mode of connection between the U2000 Web LCT center and the IP core network is based on the location of the IP devices near the U2000 Web LCT center. If the U2000 Web LCT and the nearby IP device are in the same telecommunications room, you can adopt the LAN networking mode. In the case of the long distance transmission, the networking is realized through private line services.
Outband Networking Scheme
The outband networking scheme involves using other channels except service channels to transmit the network management information and thus realizing the network management.
Compared with the inband networking, the outband working scheme provides more reliable management channels. When faults occur on the service channels, you can obtain the network management information in time and perform the real-time monitoring.
In the outband mode, you need provide a dedicated communication channel as the maintenance channel that is unrelated to the service channel.
In the outband networking scheme, the U2000 Web LCT center can set up the DCN network with the equipment managed in various ways, such as the E1 private line or Ethernet. The U2000 Web LCT manages the equipment within the management range through the DCN network. Figure 2 shows the networking diagram.
