Steve,<br><br>It is different because when the block is out of someone's PA space then it's still announced as part of an aggregate even if the specific /48 is filtered. So sure.. this site will announce the more specific and it will take up a "routing slot" but if the tables are too big for an ISP to carry it can filter and just accept the aggregate and still be able to reach that endsite.
<br><br>I hope this doesn't intend to disallow site multihoming with PA space. <br><br>---Cathy<br><br><div><span class="gmail_quote">On 2/9/06, <b class="gmail_sendername">Steve Feldman</b> <<a href="mailto:steven.feldman@cnet.com">
steven.feldman@cnet.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I'm somewhat confused by this discussion:<br><br>
Is the intent to also disallow site multihoming using PA space?<br><br>If I can obtain a /48 from one provider, and also announce it<br>through one or more other providers, doesn't it use that same<br>"routing slot" a PI assignment would use? If so, then why
<br>is this better than a PI assignment?<br><br>If I can't do that, then it effectively prevents me from<br>multihoming at all, which prevents me from using IPv6 in<br>any meaningful way.<br><br> Steve<br><br>_______________________________________________
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