I have two PowerConnect 2808 switches. The switches are in two different buildings and are connected with two wireless bridge connections. The wireless bridge connections are in parallel (Bridge 1 connects to port 1 on both switches and Bridge 2 connects to port 2 on both switches). I want to utilize the aggregation feature to send data across both links as well as provide redundancy so that if one of the Bridge connections is cut, the other one carries the traffic.
I have configured my lag to LAG 1 for both ports on both sides. However, on occasion while traffic is passing over the link, I lose access to the management interfaces on the bridges. If I remove the LAG, this goes away. Is this an STP issue (am I creating a loop)? Should I have STP on the lag? If so, does that remove the aggregation of data across both connections? Is there something else that would cause the management interfaces to be reachable while in LAG?