What's the MAC address size in bitcoin

1. 48 bits, and expressed in hexadecimal format

2. The length of MAC address is 48 bits
MAC (media access control) address, which means media access control, or physical address or hardware address, is used to define the location of network devices. In the OSI model, the third network layer is responsible for IP address, and the second data link layer is responsible for MAC address. Therefore, a host will have a MAC address, and each network location will have a dedicated IP address
the MAC address is determined by the network card and is fixed.

3. 8 bits is a byte
MAC address is 48 bits in binary, which is represented by 48 non-zero or 1 digits
if the MAC address is expressed in hexadecimal, it is 12 bits, which is represented by 12 numbers of 0 ~ F, for example, 123A. Ff44.77ae
the "bit" in the computer generally refers to the length of the binary value

4.

The length of MAC address is 48 bits (6 bytes), which is usually expressed as 12 hexadecimal numbers

for example, 00-16-ea-ae-3c-40 is a MAC address, in which the first six hexadecimal digits 00-16-ea represent the number of the network hardware manufacturer, which is assigned by IEEE (Institute of electrical and Electronic Engineers), and the last six hexadecimal digits ae-3c-40 represent the serial number of a network proct (such as network card) manufactured by the manufacturer

image that MAC address is like ID card ID number, unique. p>

extended data

the physical address of the network card is usually burned into the EPROM (a flash memory chip, which can be erased by program) of the network card by the network card manufacturer, and it stores the address of the computer sending the data and the host receiving the data

In other words, in the process of physical transmission at the bottom of the network, the host is identified by the physical address, which must be unique in the world

for example, the famous Ethernet card, whose physical address is an integer of 48bit, such as 44-45-53-54-00-00, is stored in the host interface in a machine-readable way

the Ethernet address management organization (IEEE: Institute of electrical and Electronic Engineers) divides the Ethernet address, that is, different combinations of 48 bits, into several independent continuous address groups. The manufacturer of the Ethernet network card will buy one of them, and give the unique address to the Ethernet card one by one

5. Hello, netizen:
the MAC address of 00-e0fc-00-00-40 is larger, f = 15

the root switch is 00-e04c-00-00-40. The smaller the root switch, the better

6. 48 bit 6-byte

once

7. MAC address, also called hardware address, is composed of 48 bits / bit long (6 bytes / byte, 1 byte = 8 bits), hexadecimal digits

8. The MAC address is composed of 12 bit hexadecimal numbers, such as 00:2f: 16:3d: 2b:60

9. Mac: six groups of hexadecimal characters
for example: 00-e0-4c-a5-e4-ac
IP: four groups of eight bit binary characters
for example, the conversion of 192.168.0.9 is
11000000.10101000.00000000.00001001.

10. Each port or device connected to the LAN needs a MAC address, which is used by other devices to locate specific ports and update routing tables and data structures. The size of a device's MAC address table reflects the maximum number of nodes that can be connected to the device.