RFC 2008:Implications of Various Address Allocatio...
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aggregation


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... recommends that organizations that do not provide a sufficient degree of routing information aggregation, but wish to obtain access to the Internet routing ...


... major Internet Service Providers) there were 3194 routes. Thanks to aggregation, AlterNet advertised only 799 routes to the rest of the Internet - a saving of 2395 routes (75%) [Partan 95 ...
... since many prefixes are not registered in the IRR. CIDR aggregation resulted in less than 30,000 routes in the default-free part of the ...
... address allocation, many routes in the Internet are not suitable for hierarchical aggregation. Moreover, unconnected sites with pre-CIDR address ...
... to the Internet at some point in the future, the routes to these sites are unlikely to be suitable for hierarchical aggregation. Also, when a site uses addresses obtain from its provider ...
... addresses), the route to the site may no longer be suitable for hierarchical aggregation. ...
... Hierarchical routing requires that aggregation boundaries for the addressing information be formed along some hierarchy. As a result, ...


... include the conditions of the loan. Such conditions must specify that allocations are returned if the borrower is no longer contractually bound to the lender, and the lender can no longer provide aggregation for the allocation. If a loan ends, the organization can no longer use the borrowed addresses ...
... provider, the provider is responsible for arranging aggregation of these addresses to a degree that is sufficient to achieve Internet-wide ...


... routing system should be subject to hierarchical aggregation. For such organizations, allocating addresses based on the "address ...
... addresses based on the "address ownership" policy makes hierarchical aggregation difficult, if not impossible. This, in turn, has a very detrimental effect on the Internet ...
... cost, at some point, may be passed back in full to the organizations that inject the routing information. Aggregation of addressing information (via CIDR ...
... addresses are allocated based on the "address ownership" policy (and thus may not be suitable for aggregation) should be prepared to absorb the cost completely on their own. ...


... Public Internet. Second, organizations that do not provide a sufficient degree of routing information aggregation to obtain access to the Internet routing ...


... Classless Inter-Domain Routing (CIDR): an Address Assignment and Aggregation Strategy", RFC 1519(-> 4632), September 1993. ...



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