The Token Ring

Begin Learning Cyber Security for FREE Now!

FREE REGISTRATION
Already a Member Login Here

The Token Ring:


The IEEE standard for Token Ring is IEEE 802.5. Token Ring was created by IBM for the forwarding of data on a logical unidirectional ring. Token Ring, like Ethernet, is a LAN technology that supports shared media access to several connected hosts and is applied in the Data-Link Layer. Token Ring networks transmit a small frame, called a token, to the hosts on the network. A host that holds the token has the right to transmit a frame onto the ring. After a station has the token, it adjusts it into a data frame, attaches the data for transmission, and forwards the frame to the next station. A ring will not contain a token until the data frame is received by the source station and tagged as read and copied whereupon the token is returned back into the ring. One station at a time can transmit a token to avert collisions on the Token Ring network.

A Token Ring network has a bandwidth of 4 Mbps or 16 Mbps. At the higher end, hosts are allowed to present a new token once transmission of a frame is completed. This expedient token release boosts efficiency by allowing more than one host transmit a frame during the original token’s round trip. One station is responsible for acting as a ring monitor to offer  recovery from runaway frames or tokens. The ring monitor will remove frames that have circled the ring once, if no other station removes them.

Traditional Token Ring networks use…

View Topics

Our Revolution

We believe Cyber Security training should be free, for everyone, FOREVER. Everyone, everywhere, deserves the OPPORTUNITY to learn, begin and grow a career in this fascinating field. Therefore, Cybrary is a free community where people, companies and training come together to give everyone the ability to collaborate in an open source way that is revolutionizing the cyber security educational experience.

Support Cybrary

Donate Here to Get This Month's Donor Badge

 

We recommend always using caution when following any link

Are you sure you want to continue?

Continue
Cancel