That's the problem with a bus: if you force it low or high that's effectively a denial-of-service. This obviously doesn't always happen in reality but CAN is s

That's the problem with a bus: if you force it low or high that's effectively a denial-of-service. This obviously doesn't always happen in reality but CAN is supposed detect/deal with that - pegged bus should be detectable, bad nodes are supposed to float, etc.