Well, as I recall the earlier discussion, this rather depends on the expected
frequency and overhead of renumbering.
If the (frequency*overhead) of renumberings is comparable to the
(frequency*overhead) of lookups, we have to optimize for both.
Renumbering frequency depends on whether we believe that sites will
indeed be renumbered whenever they change ISP (or upstream ISP).
That was certainly Plan A and lies behind the whole concept of
TLA addressing. On that assumption we could certainly expect hundreds
of renumberings per day. (Which is of course a lot less than
millions of lookups per second.)
Renumbering overhead is presumably measured in units of zone
transfers.
Brian
Jim Bound wrote:
>
> this is an excellent point!! optimizing the lookups seems prudent.
>
> /jim
>
> On Fri, 19 Jan 2001, Randy Bush wrote:
>
> > > given that renumbering events are unlikely to be entirely automatic anyway
> >
> > as fred succintly said, how often does renumbering occur? how often do
> > lookups occur? so, for which should we optimize?
> >
> > randy
> >
> > ---------------------------------------------------------------------
> > The IPv6 Users Mailing List
> > Unsubscribe by sending "unsubscribe users" to [EMAIL PROTECTED]
> >
--
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Brian E Carpenter
Program Director, Internet Standards & Technology, IBM
On assignment for IBM at http://www.iCAIR.org
Board Chairman, Internet Society http://www.isoc.org
Non-IBM email: [EMAIL PROTECTED]
---------------------------------------------------------------------
The IPv6 Users Mailing List
Unsubscribe by sending "unsubscribe users" to [EMAIL PROTECTED]
