Either one port from the router to switch one and another cable from switch one to switch two OR one cable from the router to each switch one and another cable to switch two and NO cable between switch one to switch two. Do not create loops!
Two cables from the router to a single switch creates a loop and all three devices connected in a circle creates another loop. Both of these scenarios will create significant bottlenecks and broadcast storms.
Now, if you have managed switches, there are other things you can do for fault tolerance, but that’s an entirely different conversation.
Either one port from the router to switch one and another cable from switch one to switch two OR one cable from the router to each switch one and another cable to switch two and NO cable between switch one to switch two. Do not create loops!
Two cables from the router to a single switch creates a loop and all three devices connected in a circle creates another loop. Both of these scenarios will create significant bottlenecks and broadcast storms.
Now, if you have managed switches, there are other things you can do for fault tolerance, but that’s an entirely different conversation.