Dear friend!
To ensure the reliability of the connection between the network and the U2000, select a NE as the secondary gateway NE by using the same standard for selecting a NE as the primary gateway NE. In addition, the secondary gateway NE can also manage certain NEs. In this way, the two gateway NEs back up each other to enhance the network stability.
When you create a NE on the NMS, you must configure the primary GNE and secondary GNEs (a maximum of three GNEs is allowed) for the NE. This means that the communication traffic between the NE and the NMS is forwarded by the primary GNE. When the communication link between the primary GNE and the NMS is disconnected or the primary GNE is malfunctioning, the communication traffic is switched to secondary GNE 1. If secondary GNE 1 is malfunctioning, it is switched to secondary GNE 2. The rest may be deduced by analogy.
The network traffic is unbalanced if GNEs in the network connect to different quantities of non-GNEs. In addition, if most of the NEs in the network share the same secondary GNE, the traffic on these NEs will be switched to the secondary GNE once their primary GNEs are faulty and the secondary GNE will be overloaded. To prevent these problems, comply with the following principles:
Try to configure the same number of non-GNEs to each GNE.
Configure a backup for all GNEs.
Configuration example: This example assumes that there are 100 non-GNEs and four GNEs (namely, GNEs A, B, C, and D). It is recommended to divide all the non-GNEs into four groups. For the first group, specify GNE A as the primary GNE and GNEs B, C, and D as the secondary GNEs. For the second group, specify GNE B as the primary GNE and GNEs C, D, and A as the secondary GNEs. The rest may be deduced by analogy.
Thank you!