MA-M
from OUI
MAC Address Block Mediumの略。
上位28ビットがMA-M baseであるEUIのこと。
MA-M baseはIEEE Registration Authorityによって割り当てられる。
EUI-48におけるMA-L、MA-M、MA-S
https://gyazo.com/508cfb3e43a0d13d74c48de7820458e5
Guidelines for Use of Extended Unique Identifier (EUI), Organizationally Unique Identifier (OUI), and Company ID (CID)
EUI-64におけるMA-L、MA-M、MA-S
https://gyazo.com/90821769344a694821a86688508acbaa
Guidelines for Use of Extended Unique Identifier (EUI), Organizationally Unique Identifier (OUI), and Company ID (CID)
https://gyazo.com/4eac4821b901830c64c5681f6c157e56
Guidelines for Use of Extended Unique Identifier (EUI), Organizationally Unique Identifier (OUI), and Company ID (CID)
MA-M baseの上位24ビットはIEEE Registration Authority自身に割り当てられた値が使われ一般の組織のOUIとは重複しない。
The first 24-bits of the assigned MA-M block are an OUI assigned to IEEE that will not be reassigned.
Guidelines for Use of Extended Unique Identifier (EUI), Organizationally Unique Identifier (OUI), and Company ID (CID)
MA-M baseを割り当てられた組織は、それに任意の8ビットを付け加えてOUI-36として使ってよい。
The MA-M does not include assignment of an OUI. The assignee of the MA-M may create an OUI-36 as the first 36 bits of an address in the MA-M assignment block.
Guidelines for Use of Extended Unique Identifier (EUI), Organizationally Unique Identifier (OUI), and Company ID (CID)
MA-M baseを割り当てられた組織が24ビットの識別子を必要とする場合はCIDがおすすめ。
If the assignee of an MA-M needs a unique 24-bit organization identifier, a CID assignment is recommended.
Guidelines for Use of Extended Unique Identifier (EUI), Organizationally Unique Identifier (OUI), and Company ID (CID)