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[address-policy-wg] Policies interact
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Randy Bush
randy at psg.com
Thu Apr 7 18:10:55 CEST 2005
>> For a routing decision you don't need 32 bits for an IPv4 prefix, >> and you do not need 128 bits for an IPv6 prefix. > Exact. > A international routing decision can be limited to the first 64 Bits. > The remaining 64 Bits are some sort of ARP-replacement. nope. folk are using /126s internally, and have igp or ibgp carrying those prefixes. of course, they also have the classic loopbacks for bgp, which can be /128s. real hardware vendors know this and don't make the same mistakes as were made in the old a/b/c days. randy
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