I currently have an Arris SB6190 single gigabit port being used with a Net FVS318GV2 which does not support link aggragation. I would like too switch out the SB6190 with a SB8200 and initially use it with the FVS318 with only one of the 2 ports until I can upgrade the router to a netgear SRX5308 which can take advantage of the dual ports on the 8200. My big thing is i dont want to switch out the 6190 now and suffer a dregradation of my current service. It would be nice to switch to the new modem and sell off the 6190 to get me some cash for the new router but I dont want to shoot myself in the foot. Any comments or suggestions? Thanks