I have a simple setup that consists of Router A (model 1800) and 2 switches (model 2950).
Port 1 of switch A is connected on port 2 of Router A and Port 1 of switch B is connected on port 3
of Router A. Also, port 49 of switch A is connected on port 49 of switch B.
I want to add a third switch but unfortunately I don't have the finance for a high end switch. I'm thinking
of adding a low end switch (ex: linksys). One link to switch A and another link to switch B for redundancy purpose.
I know the low end switch is not STP enabled, but can this type of setup create any loop issues ??
You would have an inherent loop in your setup when you connect A to B switch and then hang the dumb switch between them . As long as spanning tree is running on the 2950 it should take care of the loop and block one of the uplinks from the dumb switch I believe .Been a little while maybe someone can chime in whether the 2950's will talk spanning tree thru that dumb switch , brain cramp on this side . :-) Make sure you do not have portfast turned on for the ports going to that dumb switch . In that setup though if someone connects say 2 ports together by accident on the dumb switch it will likely take down that portion of the network with no spanning tree protection on that dumb switch.