On Thu, Apr 27, 2017 at 09:30:48AM -0700, Seth Mattinen wrote:
On 4/27/17 06:47, root <junosiosxr@gmail.com> wrote:
Am i right ?
Policy for ipv4 accept and send upto /24 Policy for ipv6 accept and send upto /48
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I confused when i checked the ipv6 prefix at route-view and ntt looking glass.
Example : seem like AS2914 accepted the /64 prefix from AS20940
Internally, sure.
NTT accepts "longer-than-/48" (and similarly "longer-than-/24") prefixes only from customers, if an exact matching route6: or route: object exists in the IRR. NTT will announce such more-specifics to customers, but not to peers. This is useful for customers who want to use NTT's backbone to connect their satellite sites to each other, as an alternative to building out their own backbone. Personally I wouldn't expect global reachability for prefixes longer than /48 or /24, so you'll see that most people make sure a covering announcement also exists. In a controlled environments these more-specifics can be very useful. Kind regards, Job