Has any one ran across this, We have a Netvanta 1234 1st gen with the latest firmware running (18.01.06). Looking in the GUI at port status the input and output 5min rates will go to NaN. They do correct themselves after a few mins however they will show say only 10 mbs out for example when it really is about 120 mbs. If i clear status while it has the NaN displayed it will read correctly say 120 mbs. This only happens over 100 mbs. It is causing the graph that our NOC uses to show a network issue. This connection is on the Giga switch port and and set to auto duplex
I noticed you opened a ticket with ADTRAN Technical Support on this issue. When you get a chance, it would be helpful to other support community members if you update this forum post with any information you have.
Please, let me know if you have any additional information or questions on this post. I will be happy to help in any way I can.