people don't understand how expensive it is to support ipv6, tcam is limited and having to split it in half to support ipv6 is just not an option for a lot of b

people don't understand how expensive it is to support ipv6, tcam is limited and having to split it in half to support ipv6 is just not an option for a lot of businesses. Route caches exist with software routing - but for larger networks it is not an option