Bill Stewart wrote:
That's not because it's doing dynamic address assignment - it's
because you're only advertising the aggregate  route from the
BRAS/DSLAM/etc., and you can just as well do the same thing if you're
using static addresses.
Customers can land on one of a fleet of large BRAS across multiple POPs in a geographic region so that a failure of one piece of equipment or POP doesn't cause an outage. If I want to run a hint of redundancy then I need to propogate statics out of the POP itself. There are corners that can be cut but none seem to fit into the kind of redundancy we like. Unlike a most BGP routes DSL circuits tend to go up and down a lot, this adds to convergence time and CPU load on the router. My issue is not basic network design skills. My issue is that customers have indicated that they feel statics are a given for IPv6 and this would be a problem if I went from tens of thousands of statics to hundreds of thousands of static routes (ie. from a minority to all). Even injecting statics into iBGP rather than an IGP I feel would add considerably to the load routers face and give a big hit in the event of failure. (We already have a class of customer with statically assigned addresses or ranges).

The indication so far seems to be that on this list at least people don't see IPv6 statics for all as the general option. This gives me a bit more hope.

MMC

--
Matthew Moyle-Croft - Internode/Agile - Networks
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