Technical data

TraverseEdge 2020 Applications and Engineering Guide, Chapter 10: Network Management
Page 10-2 Turin Networks Release 5.0.x
Figure 10-1 Example of a Gateway Node in a Network
Typically the communication between the GNE and the subtending NEs is via the in-band DCC. It is very
likely that a non-Turin Networks system will interconnect Turin Networks subnetworks. In such case,
Turin Networks’ management traffic might not be able to pass through the non-Turin Networks system.
When such a Data Communication Network (DCN) incompatibility is encountered, an isolated sub-net-
work is created.
10.1.2 Isolated Sub-Networks
An isolated sub-network is a group of NEs with no management communications between sub-networks
and the management system (TN-Xpert). The significance of an isolated sub-network is two-fold:
• No end-to-end routed connection can be made to the isolated sub-network.
• No network visibility is provided to the isolated sub-network.
In order to manage an isolated sub-network, TN-Xpert must have management connectivity to that sub-
network. One method to provide management connectivity to an isolated sub-network is to treat it as an
individual network. Each isolated sub-network would need to have a GNE to provide management connec-
tivity to TN-Xpert. Refer to Figure 10-2. An alternative is to provide Ethernet connectivity between a man-
ageable node and an isolated node. In this sense, the broken management communication is being repaired
by the Ethernet link between the manageable sub-network and the isolated sub-network.
Figure 10-2 Two Gateway Nodes to Manage Isolated Sub-Networks
10.1.3 TN-Xpert Architecture
The TN-Xpert is a domain and an element management system designed for managing the Turin Networks
products. It provides a simple and easy-to-use graphical user interface (GUI) for users to configure and
maintain their networks. The domain managing function of TN-Xpert provides complete visibility across
the Turin Networks network as well as the capability to perform multi-node actions and functions. This