IPv6 PI allocation

Jun-ichiro itojun Hagino 2.0 itojun at itojun.org
Thu May 17 19:36:02 CEST 2007


> * itojun at itojun.org (Jun-ichiro itojun Hagino 2.0) [Thu 17 May 2007, 12:50 CEST]:
> >hmm.  i have an RFC on it (RFC3178, Oct 2001), which uses two 
> >provider-aggregatable prefixes from two separate ISPs for multi-homing. 
> >with IPv6, it is a common practice for router(s) announcing multiple 
> >prefixes, right?
> >i hoped that RFC3178 would stop PI allocations, but at that time people 
> >just did not get it.  i was lucky enough that the document made it 
> >to informational RFC level.
> 
> RFC3178-style multihoming will create more entries in the global routing 
> table once a network using that connects to an IXP.

	not at all.  RFC3178 does not require ISPs to announce any specific
	routes (other than /29 or /32 of the ISP).

itojun



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