nanog mailing list archives
Re: minimum IPv6 announcement size
From: "Nathanael C. Cariaga" <nccariaga () stluke com ph>
Date: Wed, 25 Sep 2013 10:03:52 +0800
Hi All,Thank you for these insights. We'll look into all of these and review again our options on how we can further proceed in our IPv6 deployment.
Regards, -nathan On 9/25/2013 2:33 AM, William Herrin wrote:
On Tue, Sep 24, 2013 at 9:49 AM, Nathanael C. Cariaga <nccariaga () stluke com ph> wrote:I've been Google-ing about if there is such a standard that sets the minimum IPv6 advertisement on BGP. My concern is that I am running a network that is operating on multiple sites and currently rolling out our IPv6 on the perimeter level. Having to get our /48 allocation from our RIR, I figured out I would it would be best for us to break down the /48 into smaller chunks (i.e /56s) and farm it out to our sites since a single /48 will be very big for our single site.Hi Nathanael, Many if not most networks set a limit at /48. Verizon was the last player of consequence to filter at /32, and they moved to /48 a couple years ago. A few also try to limit advertisements within ISP space nearer to /32. Usually not at /32, but a /48 announcement within space allocated to an ISP won't necessarily be honored. If you have distinct networks with distinct routing policies (or can make a reasonable claim to such) and your RIR is ARIN, you can request a block size large enough to provide a /48 to each distinct network. A /44 or whatever. Search through the ARIN NRPM for details. I don't know about the other RIRs; someone in your region (Asia Pacific?) will know. Regards, Bill Herrin
Current thread:
- Re: Filter-based routing table management (was: Re: minimum IPv6 announcement size), (continued)
- Re: Filter-based routing table management (was: Re: minimum IPv6 announcement size) William Herrin (Sep 27)
- Re: Filter-based routing table management (was: Re: minimum IPv6 announcement size) Steven Bellovin (Sep 28)
- Re: Filter-based routing table management (was: Re: minimum IPv6 announcement size) Blake Dunlap (Sep 28)
- Re: Filter-based routing table management (was: Re: minimum IPv6 announcement size) John Curran (Sep 30)
- RE: minimum IPv6 announcement size Steve Bertrand (Sep 24)
- Re: minimum IPv6 announcement size Nathanael C. Cariaga (Sep 24)
- Re: minimum IPv6 announcement size Nurul Islam (Sep 24)
- Re: minimum IPv6 announcement size Nathanael C. Cariaga (Sep 24)
- Re: minimum IPv6 announcement size Nathanael C. Cariaga (Sep 24)