BlueBlazer

I have a job that I installed about 6 months ago, simple analog job. Went back to put an additional camera in. Nothing weird yet. Power cycled the power supplies after installing the new camera and found I had all of my outdoor Bosch Dinion cameras cycling their Iris's from light to dark once ever couple of seconds. Reset the cameras again. Only the outdoor Dinions were doing it. Pulled a camera out to bench it and still doing it. I'm going to try pulling Iris's and replace with a few spares just to see if it's doing still doing it. The weird part is I had three cameras give the same symptoms. Any thoughts?

I would agree, with everything Sector said. Thankfully Cisco switches can take that kind of traffic. The next thing I would ask is what kind of building infrastructure you are looking at, whether you have fiber backbone. Get some info on your current network bandwidth usage.