[pim] Re: I-D Action: draft-ietf-pim-multicast-lessons-lea rned-06.txt
Dino Farinacci <[email protected]>
| Newsgroups | gmane.ietf.pim |
|---|---|
| Message-ID | <[email protected]> |
> Aside from traffic engineering optimizations, ISPs as much as possible do “hot-potato” routing which tries to get the packet off their network as soon as possible. In contrast, multicast turns that on its head and causes “cold-potato” routing where the packet stays on the ISPs network as far as possible before exiting, thus sucking resources. You can say this with absolute certainty since it depends on the reverse paths which are typically asymmetric. And if using MBGP routes, you can control the join-path. The join-path could be the shortest AS path from a joiner to source argubly providing a "hot potato branch" of the distribution tree. Dino _______________________________________________ pim mailing list -- [email protected] To unsubscribe send an email to [email protected]