nanog mailing list archives
Re: Using /31 for router links
From: Chris Costa <ccosta () cenic org>
Date: Fri, 22 Jan 2010 17:00:22 -0800
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
Current thread:
- Using /31 for router links Seth Mattinen (Jan 22)
- Re: Using /31 for router links Jay Nugent (Jan 22)
- Re: Using /31 for router links Nathan Ward (Jan 22)
- RE: Using /31 for router links George Bonser (Jan 22)
- Re: Using /31 for router links Nathan Ward (Jan 22)
- Re: Using /31 for router links Joe Provo (Jan 22)
- Re: Using /31 for router links Seth Mattinen (Jan 22)
- Re: Using /31 for router links Chris Costa (Jan 22)
- Re: Using /31 for router links Jens Link (Jan 23)
- RE: Using /31 for router links Erik L (Jan 22)
- Re: Using /31 for router links Seth Mattinen (Jan 22)
- Re: Using /31 for router links kris foster (Jan 22)
- Re: Using /31 for router links Richard A Steenbergen (Jan 22)
- Re: Using /31 for router links Jay Nugent (Jan 22)
- Re: Using /31 for router links Tony Varriale (Jan 22)
- Re: Using /31 for router links Florian Weimer (Jan 23)
- Re: Using /31 for router links Tony Varriale (Jan 23)
- Re: Using /31 for router links Florian Weimer (Jan 23)
- Re: Using /31 for router links Jens Link (Jan 23)
- Re: Using /31 for router links Tony Varriale (Jan 23)
- <Possible follow-ups>
- Re: Using /31 for router links Michael Sokolov (Jan 22)