On Fri, 14 Oct 2005, John Payne wrote:
On Oct 14, 2005, at 10:57 AM, Joe Abley wrote:
On 14-Oct-2005, at 10:13, Christopher L. Morrow wrote:
Yep, there is no multihoming, but effectively, except for the BGP tricks that are currently being played in IPv4 there is nothing in IPv4 either. But one won't need to upgrade a Tier 1's hardware to support shim6, as
shim6 is: 1) not baked 2) not helpful for transit as's 3) not a reality
Not baked is absolutely correct, and not a reality follows readily from that, as viewed by an operator.
I'm interested in (2), though. Shim6 is not intended to be a solution for transit ASes. If you're an ISP, then you can get PI address space and multi-home in the normal way with BGP.
*IF* you're a big enough ISP. There are (a few) ISPs with few enough customers that they'd have to "exaggerate" plans to get the same level of multihoming that they do with their legacy IPv4 allocations...
even if you are big enough you may have a particularly large sink somewhere inside your /32 that you want to pull through particular links but not others... that's not possible in the current scenario. With shim6 it's even worse, the large sink gets to do the engineering for you :) HURRAY! Cause I'm sure they understand the internals of your network, right? :(