David Meyer wrote:
Have folks seen Jason Schiller's slides from NANOG 35? Might be useful to review those for some of the issues that (some set of) providers are seeing: http://www.nanog.org/mtg-0510/pdf/schiller.bof.pdf
It would actually be useful for somebody to do the exercise of determining which issues are fundamental because each site has multiple prefixes, and what issues are specific to shim6.
For instance, even in GSE the host selects which of multiple destination addresses to use, at least for the initial packet exchange. But in GSE the host doesn't select the source address; the border routers set the source address.
I don't think we are very far away from allowing the routers to change the source locator in shim6, but I don't feel we collectively (IETF+NANOG etc) know how useful such a capability would be.
Erik