[c-nsp] /31 on a PTP Ethernet interface

[Leif Sawyer]

Joerg Mayer replies
> On Mon, Mar 08, 2010 at 10:13:00AM -0800, Seth Mattinen wrote:
> > On 3/8/10 9:02 AM, Manu Chao wrote:
> > > You needn't /30 anymore, rfc3021 is well suported for a while ;)
> >
> > Cisco supports it fine, but not all vendors do. I don't have any
> > Foundry/Brocade stuff so this is secondhand, but someone on
> > NANOG said they didn't support /31's on Ethernet.
>
> That's the info too, that I got from a B/F SE: While they
> support opsf p-2-p on Ethernet, they do not support /31.

For what it's worth:

ISIS works quite happily with a /31  on ethernet PTP.