Fortunately, the nature of the LISP architecture is that there is not
one right way to deploy PITRs. There are several deployment models,
each of which address different sets of customers. As a demonstration,
if LISP PITR deployment required ISP support we would not have a running
LISP testbed.
Yours,
Joel
On 12/5/13 2:02 AM, Sander Steffann wrote:
Hi,
As I said before, the /32 advertisements of an EID-block are advertised within
an ISP towards the edges of the network. Those edges are towards its customers
so its customers, as sources in non-LISP sites, can reach destinations in LISP
sites.
So if it is only done this way, that means for global reachability of the LISP
prefix at least one global transit provider has to run PITRs. They wouldn't
mind attracting the traffic from their customers. That is what they are paid
for :-) That would make it work, *if* we can convince the big transit(s).
Cheers,
Sander
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