Re: IP4 Space

[Steven Bellovin <smb () cs columbia edu>]

On Mar 24, 2010, at 10:14 PM, Bill Stewart 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 I was still telling a few customers that Novell Netware had
> supported TCP/IP since the early 90s and it was really time to shut off IPX,
> and the Appletalk users were at least running over IP, not LocalTalk,
> so I didn't have to care much, and the Windows people were probably
> already arguing about Active Directory and LDAP and whether to do DNS,
> DLSW was Not Dead Yet, and 1/3 of my X.25 customers acknowledged
> that it was way obsolete and time to join the 1990s (the other two were
> state governments who viewed it as Somebody Else's Emulation Problem.)
>
> The last time I was dealing with high-end Layer 1 access problems was
> a couple of years ago, but in addition to normal IPv4 and MPLS,
> I had customers running Fiber Channel and other SAN protocols on the WAN.
>
> There'll be enough IPv4 to keep antiques dealers in business for a while yet.

As of (at least) 2002, the FBI was still using bisync for communications.  If you're a data communications professional 
and haven't heard of bisync, that proves my point...  I suspect that some members of this list weren't born by the time 
it was considered obsolete.

                --Steve Bellovin, http://www.cs.columbia.edu/~smb