On Wed, 3 Oct 2001, Sean M. Doran wrote:
| Multihoming costs a lot of money
I have had a couple friends -- gamers, rather than network techs -- ask me how they could take advantage of their various household broadband connections (cable, DSL and ethernet-from-bredbandsbolaget.se) to increase their download speeds, handle upstream outages, and improve RTTs to selected targets.
This is exactly why I assumed a billion multihomers on multi6. But this has very little to do with the growth of the global routing table in IPv4, since there is no way current protocols can accomodate these numbers of multihomers.
Is my estimation that for at least some broadband providers, per-household/per-customer BGP is a operational expense rather than one requring the capital purchase of new equipment, completely out-to-lunch (in advance of an interesting new product launch in the next few days)?
If you want to, you can certainly talk BGP to customers like this. I'm not sure how many BGP sessions one router can accomodate, but it's probably hundreds. Of course flapping will be a problem and nobody in their right mind is going to accept those announcements. If there is a market for home multihoming (mh²) then I'm sure someone will create a service where you can get a fixed IP address and easily create tunnels. If the tunnel endpoints are at the closest regional exchange point, the RTTs should be pretty good.