Re: Getting a "portable" /19 or /20

[Greg Maxwell <gmaxwell () martin fl us>]

On Tue, 10 Apr 2001, Sean M. Doran wrote:

> Greg Maxwell <gmaxwell () martin fl us> writes:
>
> | >   Aggregation buys time, that's it.  Aggregation does not make the
> | > current routing methods any more scalable.
> |
> | In IPv4 yes, because you can't have perfect aggregation, too much network
> | multihoming and old prefixes and it's to painful to change address blocks.
> |
> | In IPv6, if implimented right aggregation provides for virtually limitless
> | scalability for unicast traffic.
>
> Perfectly aggregated networks are star-shaped.  

No. They are tree shaped.
 
> Any more complicated topology cannot be perfectly aggregated.