EUI-64 Specification Converting 48-bit MAC addresses into 64-bit interface ID (EUI) Automatically generated by the device.
{"Image DocumentName": "EUI-64 SpecificationConverting 48-bit MAC addresses into 64-bit interface ID (EUI) Automatically generated by the device.", "Image ImageDescription": "MAC is unique, so the interface ID is also unique. Steps: Insert the FFFE into the organization ID (higher 24 bits) and node ID (lower 24 bits) in a MAC address. Perform complementary operation to the bit (u-bit) before the g-bit in the MAC address (mostly change from 0 to 1) Universally (=0)/Locally (=1) Administered ccccccugcccccccc. ccccccccxxxxxxxx. xxxxxxxxxxxxxxxx. Universal/Local (u-bit) The U/L bit is the seventh bit of the first byte and is used to determine whether the address is universally or locally administered. If the U/L bit is set to 0, the IEEE, through the designation of a unique company ID, has administered the address. If the U/L bit is set to 1, the address is locally administered. The network administrator has overridden the manufactured address and specified a different address. Individual/Group (g-bit) The I/G bit is the low order bit of the first byte and is used to determine whether the address is an individual address (unicast) or a group address (multicast). When set to 0, the address is a unicast address. When set to 1, the address is a multicast address ccccccugcccccccc. cccccccc xxxxxxxx. xxxxxxxxxxxxxxxx. 0xFF 0xFE.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}