NE Icon in the Topology Becomes Grey

Publication Date:  2012-07-23 Views:  163 Downloads:  0
Issue Description
An NE icon in the topology changes from green to grey.
Alarm Information
None.
Handling Process

Ensure that the firewall configurations on the NE are correct.

Check whether the firewall configurations on the NE are correct and ensure that UDP port 161 is used to send and receive packets. If the firewall configurations are incorrect, correct the configurations according to the configuration guide for the NE.

If the firewall configurations are correct, ensure that the NE connection is normal.

Run the Ping command to check whether the NE is connected.

If the NE connection is normal, ensure that the management IP address of the NE is correct.

If the management IP address of the NE is changed, the NE icon will change from green to grey. Delete the NE from the NMS and use the new management IP address to add the NE.

If the management IP address of the NE is correct, check the NMS server.

Check whether the gateway or mask of the NMS server is correct.

Root Cause

1.         Firewall configurations on the NE are incorrect.

2.         The NE connection is abnormal.

3.         The management IP address of the NE is changed.

4.         The gateway or mask of the NMS server is changed and the NMS server fails to connect to the NE.

Suggestions
None.

END