The Ethernet is the most commonly used network architecture, and most well known used by most users. The data rate was originally 10 Mbps, it is now currently working up to 100 Mbps, and 1000 Mbps data rate is common to use from local area network (LAN) to metropolitan area network (MAN) infrastructures. In the Ethernet network, in order to share and transmit data, the sharing hub is becoming one of the most important equipments as a node of network connections, due to the increasing demanding of data rate and efficiency, hubs is not able to afford anymore, the switches with more efficient performance is becoming popular in the market.
Unlike a hub, a switch checks every received data packet, and processes each packet appropriately. In a physical network environment, a switch has two major functions. The first is to divide the existing network into several subnets, so any expansion subnets are all reside in valid distances, and then more network nodes could be supported. The second function is to isolate traffics to prevent any collisions and crowded conditions in networks.
There are two switching techniques used in a switch: a straightforward “cutting through” method, and a “store and forward” method to verify and control packets passing through the switch. “Cutting through” only checks the header of the packets, then delivers the packets to the destination address indicated in the header of the packets. “Store and forward” receives the entire packet and verifies its correctness before sending the packets toward the destination path.
- 802.1-High Level Interface
- 802.2-LLC(Logical Link Control)
- 802.4-Token BUS
- 802.5-Token Ring
- 802.6-DQDB (Distributed Queue Dual Bus) 802.7-Broadband Technical Advisory Group
- 802.8-Fiber Optic Technical Advisory Group
- 802.9-Integrated Voice and Data LAN working Group
- 802.10-LAN Security working Group
- 802.11-Wireless LAN
TSN Ethernet definition provides 802.1Qch and 802.1Qbu/802.3br based on IEEE specifications 1588v2 and 802.1AS-REV for packet management protocol for timing and synchronization, and also provides 5G with how to use TSN Ethernet in MIMO waves IEEE 802.1CM solution of the new model.