We have a L2 Wan link terminated at 2960 switch and a 3850 switch. one end is client side RDS terminals and cisco phones and the other end are the servers. every now and again users at the client end complain that phones re-register and data connections drop for rds sessions. It is only brief. We have monitoring for interface going down, but when they get the issue the interface stays up so all I can think of , is that Packet drops are happening. I can see from the interfaces that there are errors, but I would like a way of monitoring the link in terms of if packet loss hits a certain threshold or latency increases we can get an alert. Is there a tool to do this?
