[ipv6-wg] next version of RIPE-501, v.2

On 7/23/11 9:37 AM, Ivan Pepelnjak wrote:
> IS-IS MT is highly desirable in most circumstances anyway, but we
> haven't considered that a good-enough reason to make it MANDATORY.
>
> However, if you run MPLS TE without MT, you get black hole routing
> the moment the first autoroute MPLS TE tunnel is established; thus
> we've made IS-IS MT MANDATORY for networks running MPLS TE.
>
> Details here:
> http://blog.ioshints.info/2010/03/is-ismpls-tenative-ipv6fail.html
>
> However, I'm perfectly happy if the WG decides to make IS-IS MT
> mandatory in all cases (would make sense anyway).

Currently, this is mandatory only "If MPLS Traffic Engineering is used 
in combination with IS-IS routing protocol"

What percentage of equipment we exclude as routers if we make this 
unconditionally mandatory?

I know for at least Mikrotik routers are excluded, as they do not 
support IS-IS at all (and they are quite used in small/medium companies 
environment).

Opinions?

Cheers, Jan