I am doing a switch comparison between the 3750 stack and the 4500. I am comparing the 3750G-48TS with the 4510R (SupV and 4548-GB-RJ45 line card).
I have found information showing that the 4500 chassis supports 6 Gbps per slot. The 3750 shows it being 32 Gbps, but each Port ASIC supports 8 Gbps and it is my understanding that the 3750 runs in bus. So, traffic destined to a 3750 that must traverse a 3750 that is in between them, comes into it from the stack and goes through each Port ASIC. Each Port ASIC is treated as a node on the ring. Does that mean that the true throughput is the lowest common factor, that being the 8 Gbps limitation of the Port ASIC?
Also, how is the forwarding rate performed? Why is the 4500 sup V that that much greater? How does it change for the 3750 in stack mode?