Lincoln Dale wrote:
On Tue, Nov 22, 2022 at 11:20 AM Joe Maimon <jmaimon@jmaimon.com <mailto: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.
And I am sure you would agree that un-reserving a decade ago would have more than likely resulted in a greatly improved situation now. Along the lines that doing so now could still result in a greatly improved situation a decade hence. Should we still need it. Joe