An issue glossed over by people is: "the entire TCAM space dedicated to IPv6 multicast is only 3,000 entries" Some mid-level switches normally have TCAM space

An issue glossed over by people is: "the entire TCAM space dedicated to IPv6 multicast is only 3,000 entries" Some mid-level switches normally have TCAM space for hundreds of thousands, or millions of entries, IPv4 or IPv6. Maybe their vendor artificially crippled their line of switches, or maybe the switches were deployed with a configuration error. It is probably the former though. Network vendors like to make you believe some features cost a lot to implement and that you really need their highest-level gear, when in fact even the biggest TCAM in silicon cost a few tens of dollars, at most.