We recently did a backbone router upgrade and the vendor surprisingly
didn't support /31's. We had to renumber all those interconnects and
peering sessions to /30's. That wasn't fun!
On Jan 22, 2010, at 4:53 PM, Seth Mattinen wrote:
Joe Provo wrote:
On Fri, Jan 22, 2010 at 04:08:28PM -0800, Seth Mattinen wrote:
In the past I've always used /30's for PTP connection subnets out
of old habit (i.e. Ethernet that won't take unnumbered) but now
I'm considering switching to /31's in order to stretch my IPv4
space further. Has anyone else does this? Good? Bad? Based on the
bit of testing I've done this shouldn't be a problem since it's
only between routers.
rfc3021 is over 9 years old, so should be no suprise that it works
well. :-)
I'm never surprised anymore by something that should work turning
out to have some obscure quirk about it, so I figured it was worth
asking. ;)
~Seth