When you connect each switch independently to the router, there will be a broadcast domain for each switch, thus controlling the broadcast traffic passing through your network.
Transmission fluid is a slippery liquid that acts as a lubricant for all of the moving parts inside your transmission. In an automatic transmission, this fluid also serves as a coolant and a viscous fluid that transmits power from the engine to the transmission. A variety of fluids are used for different transmissions.
Transmission fluid runs between all the gears in your manual transmission and running metal-laden fluid through metal gears can end up causing untimely wear. Another thing to look out for is a transmission fluid leak. While the transmission fluid in manual transmission vehicles doesn't tend to naturally break down on its own, loose parts or impact from road debris can cause leaks and low fluid levels.