RIPE-501 ICT L2 vendor support?

[Phil Mayers]

On 28/08/12 10:08, Tim Chown wrote:
> On 20 Aug 2012, at 13:19, Nick Hilliard <nick at foobar.org> wrote:
>
>> On 20/08/2012 11:42, Eric Vyncke (evyncke) wrote:
>>> Hope this simply helps (it is not meant at all to be a marketing/sales thing)
>>
>> Eric, this is incredibly useful and a really important step forward for
>> functional campus and large enterprise ipv6 deployment.  Thanks for raising
>> the bar on this issue.  I hope other vendors will soon follow.
>
> Unfortunately, where it causes problems, you can't turn it off.

Really? Which feature(s) are forced-on?