tell me Mark, when will you turn off -all- IPv4 in your network? no snmp/aaa, no syslog, no radius, no licensed s/w keyed to a v4 address, no need to keep logs for leos' (whats the data retention law in your jurisdiction?) etc... simple switching of datagrams over non-v4 transport is trivial. th O&M behnd running production is a slightly longer path and the legal requirements these days didn't exisit a decade ago. Chris was optimistic at 10+ years. imho --bill On Wed, Mar 24, 2010 at 01:29:31PM +1030, Mark Newton wrote:
On 24/03/2010, at 4:10 AM, Christopher Morrow wrote:
it seems to me that we'll have widespread ipv4 for +10 years at least,
How many 10 year old pieces of kit do you have on your network?
Ten years ago we were routing appletalk and IPX. Still doing that now?
Ten years ago companies were still selling ISDN routers which still insisted on classful addressing. Got any of them left on the network?
I'd expect that v4 will still exist in legacy form behind firewalls, but I think its deprecation on the public internet will happen a lot faster than anyone expects.
I agree that v6 deployments seem to be getting better/faster/stronger... I think that's good news, but we'll still be paying the v4 piper for a while.
Only until v4 becomes more expensive (using whatever metric matters to you) than v6.
After you pass that tipping point, v4 deployment will stop dead.
- mark
-- Mark Newton Email: newton@internode.com.au (W) Network Engineer Email: newton@atdot.dotat.org (H) Internode Pty Ltd Desk: +61-8-82282999 "Network Man" - Anagram of "Mark Newton" Mobile: +61-416-202-223