FIB Sizing

Sat Jul 25 11:28:06 UTC 2015

On 22 July 2015 at 06:51, William Herrin <bill at herrin.us> wrote:

> The IPv4 BGP table has been growing by 10% to 15% per year since CIDR.
> It appears to be a compounding curve, not linear.
>
> IPv4 exhaustion is a new factor which may or may not impact the next
> 24 months' projection. There are arguments favoring a slower rate (no
> more free pool). There are arguments favoring a faster rate
> (fragmentation from address sales). No one has a crystal ball good
> enough to know for sure -- the situation is literally unprecedented.
>

When will router vendors learn to do even simple aggregation before loading
routes into FIB? It appears that most hardware will have plenty of FIB
space if this was done. Also that aggregated routes are increasing at a
slower pace.

Regards,

Baldur