RE: status update for ESnet

Michel,

I've asked the engineer for his reason, so you should get a reply. I don't 
really know the ratioanle.


Bob

===
At 09:35 AM 7/16/2002 -0700, Michel Py wrote:
>Bob,
>
> > Interfaces addresses are globally unique and are /64s.
> > Loop back addresses are globally unique /128s from a common /64.
>
>I am curious about the /128 loopbacks. I typically don't treat loopbacks
>differently than any other interface on a regular subnet, meaning I give
>them a /64 as well.
>
>I understand that, contrarily to /127 commonly used on ptp links, /128
>addresses do not violate [addrarch], so doing this is ok.
>
>However, the use of /128s out of a "loopback pool" /64 makes loopbacks
>unaggregatable, where using /64s could make them aggregatable.
>
>I am curious about the reasons behind the choice of /128s for loopbacks.
>Is there a deliberate choice to make them unaggregatable (which has
>operational advantages as well as drawbacks)?
>
>Thanks
>Michel.