Point-to-point /64

[cb.list6]

On Jun 2, 2013 11:18 AM, <sthaug at nethelp.no> wrote:
>
> > > > Subnet anycast is not a supported feature or requirment in my
network.
> > >
> > > As subnet anycast is a integral part of IPv6, you might not want to
> > > support or require it, but the gear will implement it and thus one
point
> > > it will bite you as suddenly it won't work.
> > >
> > > Likely though you are just putting the PtP links as 2x /128 and not
as a
> > > /127 on the link. The former works, the latter breaks.
> >
> > Funny, /127 works great for "real" point to point links (SDH). I tried
> > it just now on an Ethernet link between a JunOS 11.4 box and an IOS XR
> > 4.2.3 box in my lab - and it seems to work just great there too.
> >
> > What is the real usage of IPv6 subnet anycast?
>
> Some interesting discussion on the use of /127 - but I still haven't
> seen any info on the real usage of IPv6 subnet anycast. I'm tempted to
> draw the conclusion that nobody uses IPv6 subnet anycast.
>
> (As opposed to the *normal* way of doing anycast, which is the same for
> IPv4 and IPv6, and which we and many others use to great effect for DNS
> and similar services.)
>
> Steinar Haug, AS 2116

Perhaps somebody should formally move that function to historical status so
it stops coming up.

CB
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