Re: [Idr] WG adoption of "IPv6 AF Extensions for Route Target Distribution"

[Jeffrey Haas <[e-mail]>]

Apologies if this is a duplicate.  I had thought I had responded to this but
I don't see it either in my inbox or the IDR archives.

On Thu, Mar 31, 2011 at 03:54:07PM +0000, Jie Dong wrote:
> Authors of "IPv6 AF Extensions for Route Target Distribution" would like to propose to adopt this draft as IDR WG document.
> 
> The draft could be found at: 
> http://tools.ietf.org/html/draft-keyur-bgp-af-specific-rt-constrain-01

I support adoption of this draft as a working group item.

However, I also strongly request that the IPv6 RTC be moved to a
different code point, whether AFI or SAFI.  This would avoid muddying the
semantics of an 12 byte RTC vs. the 20 byte RTC. 

As an example, the type and subtype fields of both regular AS-based route
targets are identical with the IPv6 route target.  It's unclear if the RTC
prefix is /64 if the two octets not including the type/subtype are intended
to be IP address or AS.

-- Jeff