[address-policy-wg] IPv6 allocations for 6RD

On 2 dec 2009, at 10:20, Florian Frotzler wrote:

> Hi Marco,
>
> I am slow in understanding, please clarify on this. Why exactly would
> 6RD lead to more specifics? There are certainly reasons for load
> balancing v6 traffic, but what changes 6RD in comparison to dual
> stack?


Well I can only assume what happens, but given the number of perfectly  
good /16's that get broken into small pieces 'because it is otherwise  
hard to loadbalance' What those people usually struggle with is that  
they have 2 uplinks, but one large CDN picking a particulair route  
will saturate one of them, so the break it up to split the traffic  
over multiple upstreams.

It lead to the same problem if all of a sudden a large portion of  
their traffic moves to the /24 single annoucement, especially since  
they haven't invested too much in IPv6 connectivity. This of course  
can be solved by buying a bigger pipe, but then again the whole /24  
can be avoided by running multiple instances of 6RD, since that was  
put down as additional cost I have no hopes on the /24 as well.

MarcoH