[VoiceOps] Inbound Redundancy

David Hiers hiersd at gmail.com
Mon Aug 24 10:08:25 EDT 2009

Since there is no problem that cannot be solved by an additional layer
of abstraction, I propose a Universal Title Translation that would
overlay the Global Title Translation.

I leave it to some physics wonk to pencil up a Multiverse Title Translation...


On Mon, Aug 24, 2009 at 7:02 AM, Alex Balashov<abalashov at evaristesys.com> wrote:
> Another thing to consider is that in the BGP world, the IP block(s)
> announced by the customer are actually "owned" by the customer, in an
> administrative and a technical sense.  This is true whether they are subnets
> of a provider's aggregate, or provider-independent blocks obtained directly
> by the customer through a RIR like ARIN.
> The ISPs really do just provide the transit.  You can announce whatever
> blocks you want to them (that they let you/don't filter), and they can
> announce those blocks on behalf of their subtended networks (customers).
> PSTN numbers don't work that way, conceptually.   You may, as a customer,
> "own" the numbers in some legally significant way, but as implemented in the
> underlying technology, they are homed (or ported) to a carrier switch.
> That's just where they go, and that's what makes them functional.
> When it comes to multi-provider redundancy, I think the eventual solution -
> if there's any interest and business case for one - will be less to
> hair-trigger NPAC subscriptions to another OCN/LRN, protection switch-style,
> and more the use of some sort of "logical" number or identifier that is a
> wrapper for the underlying numbers that are still statically assigned to a
> particular carrier.  Sort of like a hunt group or find-me-follow-me
> functionality, but on a lower level of abstraction.  :)
> -- Alex
> --
> Alex Balashov - Principal
> Evariste Systems
> Web     : http://www.evaristesys.com/
> Tel     : (+1) (678) 954-0670
> Direct  : (+1) (678) 954-0671

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