IT

2. The first Ethernet standard was published in 1980 by a consortium
of Digital Equipment Corporation, Intel, and Xerox (DIX).

3. Layer 1 and Layer 2

4. Logical Link Control (LLC) sublayer

5. Media Access Control (MAC)

6. Historic Ethernet

7. Early Ethernet Media
The original thick
coaxial and thin
coaxial physical
media were
replaced by early
categories of UTP
cables.

8. Upgrading to 1 Gbps Ethernet

9. Ethernet Beyond the LAN

10. The Frame – Encapsulating the packet
the minimum frame size as 64 bytes and the maximum as 1518 bytes.. The
IEEE 802.3ac standard, released in 1998, extended the maximum allowable
frame size to 1522 bytes.

11. The Ethernet MAC address
How would each device identify if it were the intended receiver
of the message?

12. An Ethernet MAC address is a 48-bit binary value expressed as 12 hexadecimal
digits.

14. Ethernet unicast

15. Ethernet Multicast
the broadcast MAC address is 48 ones displayed as Hexadecimal FF-FF-FF-
FF-FF-FF.

16. Ethernet Broadcast
The multicast MAC address is a special value that begins with 01-00-5E in
hexadecimal. The value ends by converting the lower 23 bits of the IP multicast
group address into the remaining 6 hexadecimal characters of the Ethernet
address. The remaining bit in the MAC address is always a "0".

17. CSMA/CD