nanog mailing list archives
Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums.
From: Michael Smith <mksmith () mac com>
Date: Wed, 14 Nov 2012 12:10:43 -0800
On Nov 14, 2012, at 10:06 AM, William Herrin <bill () herrin us> wrote:
On Wed, Nov 14, 2012 at 12:08 PM, Ben S. Butler <Ben.Butler () c2internet net> wrote:Yes, nice. But... It does not address the case when this is not the ISPs customers but the ISP (read content provider) that operates globally but without a network interconnecting their routers.Hi Ben, That case is covered by things like ARIN's multiple discrete networks policy which permit an ISP /32 or end-user /48 for _each_ distinct network. There are plenty of addresses in IPv6. You should be break up a /32 for traffic engineering purposes, not for the sake of handling multiple disconnected sites. And when exercising TE, you can offer a covering route and expect the network as a whole to still function regardless of other folks' suballocation filtering. Regards, Bill Herrin
I guess I'm confused. I have a /32 that I have broken up into /47's for my discrete POP locations. I don't have a network between them, by design. And, I won't announce the /32 covering route because there is no single POP that can take requests for the entire /32 - think regionalized anycast. So, how is it "worse" to announce the deaggregated /47's versus getting a /32 for every POP? In either case, I'm going to put the same number of routes into the DFZ. Mike
Current thread:
- What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Ben S. Butler (Nov 14)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Suresh Ramasubramanian (Nov 14)
- Message not available
- RE: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Ben S. Butler (Nov 14)
- Message not available
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Suresh Ramasubramanian (Nov 14)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. William Herrin (Nov 14)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Frank Habicht (Nov 14)
- RE: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Ben S. Butler (Nov 14)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Frank Habicht (Nov 14)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. William Herrin (Nov 14)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Michael Smith (Nov 14)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. William Herrin (Nov 14)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Michael Smith (Nov 14)
- RE: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Ben S. Butler (Nov 14)
- RE: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Ben S. Butler (Nov 15)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Matthew Petach (Nov 15)
- RE: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Ben S. Butler (Nov 15)
- RE: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Ben S. Butler (Nov 22)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. Frank Habicht (Nov 14)
- Re: What is BCP re De-Aggregation: strict filtering /48s out of /32 RIR minimums. William Herrin (Nov 14)