On Tue, Nov 22, 2022 at 11:20 AM Joe Maimon <jmaimon@jmaimon.com> wrote:
Indeed that is exactly what has been happening since the initial proposals regarding 240/4. To the extent that it is now largely supported or available across a wide variety of gear, much of it not even modern in any way.
As someone who has been involved in the deployment of network gear into class E space (extensively, for our own internal reasons, which doesn't preclude public use of class E), "largely supported" != "universally supported". There remains hardware devices that blackhole class E traffic, for which there is no fix. https://seclists.org/nanog/2021/Nov/272 is where I list one of them. There are many, many other devices where we have seen interesting behavior, some of which has been fixed, some of which has not. cheers, lincoln.