802.3 Fast Ethernet 802.12 Demand Priority 802.4 Token Bus 802.11 Wireless networks 802.5 Token ring 802.16 WMAN Broadband wireless access
IEEE 802.3 is the standard for Ethernet LAN. It is a collection of IEEE standards for physical layer and Data link layer's MAC sublayer. According to these standards, the Ethernet LAN card works. IEEE 802.4 is a Token Bus standard which was standardised by IEEE. It grants the Bus physical topology to use token messages to access physical layer.
ethernet
In a token bus network architecture, the nodes at either end of the bus do not actually meet. In a token ring, the network logically functions as a ring, but is wired as a star.
You can't get on the bus without a token.
A token bus uses a shared bus for communication. Hosts on the bus are ordered in a logical ring, with access to the bus coordinated by passing a token (a special packet) around the ring, indicating permission to transmit. The intent is to get the robustness of a simple bus protocol with the deterministic response time of a token ring. Unfortunately, because the bus is shared, each host on the bus must wait for the token to be completely transmitted before it can pass it on. This is in contrast to a token ring, where the token passes through each host with only a few bits delay. This gives the token bus considerably worse latency than a token ring. The reliability of a token protocol over a (CSMA protocl such as Ethernet ) is undermined by the complex protocols needed to recover the token at exactly one host should it become corrupted.
Ethernet
$2, this is a standard set price of any bus token/transit slip in bc
bus token bus
less cable
IEEE 802.4 token bus
Token bus is as far as I know the theory that token ring's transmission is based on. Both physical layers of networking, can be said that they were two competing set of networking technology, both initial members of IEEE 802.x networking family. Token ring is based on passing packets along a track from one station to another like a passenger in a train, for fail-safe redundancy there were 2 duplicate tracks can be thought as one clockwise one counter-clockwise in a ringed/circular arrangement. Ethernet is rather about shooting packets from source to destination. If there is another packet being shot a collision is this, the packets are lost and shooters agree to re-shoot at a random time hopefully and likely so avoid the collision again, but if it happens again do it again and again...