We have had an issue with a PortServer TS16 MEI and I am hoping to get some assistance.
We have a unit that we use to collect logging data from 12 protocol converter cards. Each card has a RS-232 serial port that runs at 115200 8,n,1. The data is logged on a CentOS server and it uses the latest RealPort driver.
A month ago, we had power to the terminal server go down. It was out for 75 minutes. When the power came back, the terminal server started sending the logging messages coming into the serial port of the terminal server back into the protocol converter card. We were seeing an echo of the data on the line. This caused a flooding of the lines that run through the cards and basically caused a denial of service. The unit stayed in this echo mode for 17 minutes until it rectified itself without any intervention.
One night we tried doing some testing where we took the power down for 5 minutes and were unable to replicate the problem. On another night we took the power down for 75 minutes and were able to replicate the fault.
Is it possible to get some information on the boot process of these devices?
Do you know of any way this could happen?
I have a suspicion that the terminal server got to a certain point in the boot process and hung there. The problem rectified at the same time the logging started working again. My suspicion is it hung until the network side of the terminal server came back.
We use these in multiple parts of our business so we need to be sure the fault can not occur elsewhere.
Thanks for your time.