하드웨어2009.06.24 14:16
뒤에 용어가 참.. 애매 모호한데 문서마다 이름이 다르다.

Wikipedia의 MAC 항목에서는


그냥 OUI / NIC로 표기 되어 있는데.. 뒤에 3바이트에 대해서는 딱히 이렇다 할 표현용어가 없다.

Manufacturer Identifier

CDPD System Specification Release 1.0 provides for the use of unique word in conjunction with Identity Assignment, Mobile Network Registration and Mobile Network Location messages. A unique EUI-48 word is a sequence of 48 bits. The high order 24 bits take the value of the company_id (assigned by the IEEE/RAC) and the following 24 bits are administered by the manufacturing identifier assignee in accordance with policies and procedures set forth by the CDPD Network Information Center.

[링크 : http://standards.ieee.org/regauth/oui/tutorials/cdpd.html]

|        company_id       |            extension identifier           | field
|addr+0 | addr+1 | addr+2 | addr+3 | addr+4 | addr+5 | addr+6 | addr+7| order
|  AC   |   DE   |   48   |   23   |   45   |   67   |   AB   |   CD  | hex
10101100 11011110 01001000 00100011 01000101 01100111 10101011 11001101 bits
|  |                                                               |  |
|  most significant byte                      least significant byte  |
most-significant bit                              least-significant bit

[링크 : http://standards.ieee.org/regauth/oui/tutorials/EUI48.html]

Byte\Bit

7

6

5

4

3

2

1

0

0

(MSB)

ieee oui

 

1

 

 

2

 

(LSB)

3

(MSB)

vendor-specific extension identifier

 

4

 

 

5

 

(LSB)


[링크 : http://standards.ieee.org/regauth/oui/tutorials/fibreformat.html]




아무튼 IEEE 의 OUI 관리 튜토리얼 링크를 확인해봐야 할 듯 하다.
[링크 :  http://standards.ieee.org/regauth/oui/tutorials/]

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