I am looking for a switch that forwards IP multicast in hardwar than the software.
I found Catalyst 4500 series switches but are there more choices?trying to lower the cost?
IP Multicast on the Catalyst 4500 Series Switch
The Catalyst 4500 series switch supports an ASIC-based Integrated Switching Engine that provides Ethernet bridging at Layer 2 and IP routing at Layer 3. Because the ASIC is specifically designed to forward packets, the Integrated Switching Engine hardware provides very high performance with ACLs and QoS enabled. At wire-speed, forwarding in hardware is significantly faster than the CPU subsystem software, which is designed to handle exception packets.
The Integrated Switching Engine hardware supports interfaces for inter-VLAN routing and switchports for Layer 2 bridging. It also provides a physical Layer 3 interface that can be configured to connect with a host, a switch, or a router.