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