BGP announcements and small providers

Dean Gaudet dgaudet at
Wed Feb 26 22:27:05 UTC 1997

TTL is meaningless because Navigator (and probably MSIE and every other
browser) caches DNS "forever".  There are people who don't restart their
browsers every day... as I mentioned in another message, I've seen people
going to the old ips up to three weeks after the theoretical time after
which they should have changed. 


On Wed, 26 Feb 1997, Justin W. Newton wrote:

> At 02:31 PM 2/26/97 -0500, Bradley Dunn wrote:
> >On Wed, 26 Feb 1997, Lyndon Levesley wrote:
> >
> >>  Nameservers are a bit harder to renumber, but that's not too bad.
> >
> >When you have hundreds of virtual web sites?
> Uhm, sure.  Just slowly decrease the TTL on your name server until you are
> ready to renumber (and the TTL is set to something ridiculously low such as
> 1 minute).  The customers will then experience something like a 1 minute
> outage when you renumber.  If we are going to start getting into the
> procedures of HOW to renumber this should likely move to the PIER mailing
> list.  I think if in general people become more interested in HOW to
> gracefully renumber themselves and their customers instead of worrying
> about how hard it is to do they would see that while it is work, it isn't
> really all that hard.  
> Justin Newton				
> Network Architect					
> Erol's Internet Services
> ISP/C Director at Large

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