IPv6 Subscriber Access Deployments
Bjørn Mork
bjorn at mork.no
Sat Sep 12 15:06:39 UTC 2015
Owen DeLong <owen at delong.com> writes:
> Sure, but this is a useless savings that comes at the cost of awkward traceroute output
> that will initially confuse your new employees and consistently confuse your customers.
Like MPLS or asymmetric routing...
Noone wants unnecessarily confused employees or customers, but I don't
think confusing traceroute output comes very high on the network design
criteria list these days :)
Whether the savings are useless depends on how you count the cost.
Address space savings are of course pointless, but managing address
allocations does have a cost. It doesn't have to be high, but it is a
cost you have to consider.
FWIW, we decided to go with an IA_NA based WAN GUA for CPE management
purposes - we needed a management address and didn't want to steal from
the customers IA_PD prefix.
Bjørn
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