[c-nsp] ipv6

[Pete Templin]

On 6/21/13 4:06 PM, Lobo wrote:
> Here is what we sort of followed:
>
>   * Get your IPv6 block from your RIR; typically a /32 but we were able
>     to negotiate a /28
>   * Come up with a good IPv6 address plan; spend some good time on this
>   * Enable IPv6 connectivity to your upstream and public peering
>     connections along with BGP

A couple of recommendations here.  In setting up more than one ISP with 
IPv6, I used an address scheme where:

Infrastructure is in <ARIN-/32-prefix>:0:0/64
Loopbacks are <pfx>:0:0:0:0:site#:router#-in-site/128
Intra-POP links are <pfx>:0:0:0:site#:link#:endpoint(1 or 2)/112
Inter-POP links are <pfx>:0:0:site-A#:site-B#:endpoint(1 or 2)/112
(A is always the lower-numbered site, B is higher; endpoint 1 is in site 
A, 2 is in site B)

Customers would be assigned a /56 by default, but we'd use a progressive 
sequence to hand out said /56s so that every customer has the same 
ability to up-size at any given moment - in other words:

customer 1:	(infrastructure)
customer 2:	<pfx>:0:8000/56
customer 3:	<pfx>:0:4000/56
customer 4:	<pfx>:0:C000/56
customer 5:	<pfx>:0:2000/56
customer 6:	<pfx>:0:6000/56
customer 7:	<pfx>:0:A000/56
customer 8:	<pfx>:0:E000/56
customer 9:	<pfx>:0:1000/56
etc.

Hope this helps in some way.

Pete