On Thu, Nov 19, 2009 at 6:28 PM, <[email protected]> wrote: > In einer eMail vom 19.11.2009 07:39:18 Westeuropäische Normalzeit > schreibt [email protected]: > > actually I think the ID doesn't have to be globally unique. It's > convenient if it is (today), but it need not be globally unique. > > It would be useful to get to some destination user by knowing his > globally unique identitfier plus the (regional) scope of his location, in > case the precise location is not known. I know this is not currently > available technology, but think about it. (it might help searching for the > right namespace for locators:-) >
I think not, I'm afraid. if you already have a regional scope information, the identifier can be local to (unique only within) the very region, and still reaching to the destination will work without a problem. So, global uniqueness of identifier is not a necessity. Having said that, however, it may still be beneficial to have identifiers global for other reasons, if it can be achieve with not too much pain. Though not a necessity, such a property may be a very useful asset. -- Regards, DY http://cnu.kr/~dykim
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