classless inter-domain routing
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Definition of classless inter-domain routing words
- noun Technical meaning of classless inter-domain routing (networking) (CIDR) /sid*r/ A technique that summarises a block of Internet addresses in a routing table as an address in dotted decimal notation followed by a forward slash and a two-digit decimal number giving the number of leading one bits in the subnet mask. For example, 123.123.123.0/24 specifies a subnet mask of 11111111.11111111.11111111.00000000 (binary), implying the block of addresses 123.123.123.0 through 123.123.123.255. CIDR is "classless" because it is not limited to the subnet masks specified by Internet address classes A, B and C. According to RFC 1519, CIDR was implemented to distribute Internet address space more efficiently and to provide a mechanism for IP route aggregation. This in turn reduces the number of entries in IP routing tables, enabling faster, more efficient routing, e.g. using routing protocols such as OSPF. CIDR is supported by BGP4. See also RFC 1467, RFC 1518, RFC 1520. 1
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Parts of speech for Classless inter-domain routing
noun
adjective
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adverb
pronoun
preposition
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determiner
exclamation
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