And ISPs are certainly allowed to run PITRs.
They can either advertise only the customers they support, or forward
traffic for other folks who may well not even be their customers. Their
call.
But the LISP RFCs are not going to mandate that.
And I expect that there will be other alternatives.
Yours,
Joel
On 12/5/13 10:41 AM, Dino Farinacci wrote:
PITRs can be run by anyone who wants to (with suitable authentication /
authorization). So they can be run (as Dino hypothesizes) by the ISPs. They
can be run by the EID allocators. Or by third parties. In all cases, they
either have to be prepared for too much traffic or restrict what they advertise
into the BGP system. Which is why I hope that it will make business sense for
the allocators to run PITRs, since they are the only ones in the right place to
easily provide aggregation of EID allocations.
I envision existing ISPs to run PxTRs because they have capacity planned for
data movement. Where MSPs are adminstrative and policy driven. They don't need
the bandwidth capacity as the data-plane providers. So, in theory they could do
both but I envision that an existing data-plane ISP would offer MSP services
versus the other way around.
Dino
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