nanog mailing list archives
Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)]
From: joel jaeggli <joelja () bogus com>
Date: Sat, 03 May 2014 11:48:14 -0700
On 5/3/14, 10:36 AM, Chris Grundemann wrote:
On Sat, May 3, 2014 at 3:58 AM, Randy Bush <randy () psg com> wrote:a good number of us use that kinky /10 behind home nats and encourage everyone to do so. it was a sick deal and should be treated as such, just more 1918.A good number of folks use other folks IP space in all kinds of strange and kinky ways too - it's ALL just more 1918, right??? Or maybe standards exist for a reason. Perhaps enhancing coordination, cooperation, and *interoperability* are good things... I'll let you decide, Randy; is it sick to solve problems through community consensus and standardization, or is it sick to be the one intentionally getting in the way of those real world solutions?
Any time you have two parties that have to interconnect who have overlapping usage of the same space you're going to have issues. The authors the 6598 were concerned about intersection with legacy CPE. 100.64.0.0/10 does not yet have that issue. The use cases being described here (randy causing pollution, numbering internal network resources (the intended purpose after all)) have no relationship to legacy CPE. characterizing it as shared was always a misnomer since by their nature collisions are not sharing. in a somewhat unrelated note this prefix is still leaking in some globally visible ways in some places. e.g. if you're as3303 you probably shouldn't be importing these prefixes from customers or exporting as part of your full table given that you also accept them from subsidiaries. that's likely to end in tears.
Cheers, ~Chrisrandy
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Current thread:
- Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Chris Grundemann (May 02)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Måns Nilsson (May 03)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Randy Bush (May 03)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Chris Grundemann (May 03)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] joel jaeggli (May 03)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Randy Bush (May 03)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Chris Grundemann (May 03)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Måns Nilsson (May 03)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Mark Tinka (May 04)
- RE: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Vitkovský Adam (May 05)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Mark Tinka (May 05)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Rajiv Asati (rajiva) (May 06)
- Re: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Mark Tinka (May 06)
- RE: Shared Transition Space VS. BGP Next Hop [was: Re: Best practices IPv4/IPv6 BGP (dual stack)] Vitkovský Adam (May 06)