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Re: shim6 @ NANOG
On 4-mrt-2006, at 22:31, Matthew Petach wrote:
And given that any network big enough to get their own PI /32 has *zero*A case can be made that some big sites sitting high and dry wouldn't care enough about their customers to do shim6 with them if they're multihomed using shim6, but that's not the same thing as there being zero benefit. Especially in a competitive market place: what if Hotmail runs shim6 so that multihomed Hotmail users can keep sending mail even when one ISP fails, while Gmail doesn't?
You assume that all the big sites will get PI /32s and that this will allow them to multihome the way they want. I'm sure _some_ big sites will get a /32 or /48 or other PI block, but it remains to be seen whether all do. And having a single block isn't enough if you connect to the net in various locations but don't want to backhaul traffic between those locations yourself.
Yes, this is an issue. If we have to wait for a major release or even a service pack, that will take some time. But OS vendors have software update mechanisms in place so they could send out shim6 code in between.
And no major company supports/allows automated software update mechanisms
Dit I use the word "automated"?
But again, it cuts both ways: if only two people run shim6 code, those two people gain shim6 benefits immediately.
Cool. So let individuals make a choice to install it if they want. ButNobody is forced to implement shim6 if they don't want. But not liking shim6 doesn't buy you PI in IPv6.
shim6 is _more_ anti-competitive than extending the existing IP allocation2 million prefixes in a router that supports 1 million is also a non- starter.
Insisting that shim6 isn't going to work is a waste of time, because it doesn't do anything to make shim6 better so it could work or create alternatives, it just adds FUD.
I have more faith in our ability to deal with route table growth than I doEngineering based on faith is insane. Even with today's science we have balconies falling off of appartment buildings and roofs collapsing when it rains or snows a bit harder than usual, so a little caution here and there isn't too much to ask for.