What is token ring VLAN?
In a Token Ring VLAN, logical ring domains are formed by defining groups of ports that have the same ring number. The IEEE calls such a port group a Concentrator Relay Function (CRF). On Catalyst switches, such a grouping of Token Ring ports is called a Token Ring CRF (TrCRF).
What is ring LAN?
A ring network is a local area network (LAN) in which the nodes (workstations or other devices) are connected in a closed loop configuration. Adjacent pairs of nodes are directly connected. Other pairs of nodes are indirectly connected, the data passing through one or more intermediate nodes.
What is types of token ring?
Token Ring networks come in two types, both of which can operate at 4 or 16 Mbps: Type 1: Generally uses shielded twisted-pair (STP) cabling with a special data connector developed by IBM for Token Ring installations. Type 3: This type uses standard unshielded twisted-pair (UTP) cabling with RJ-45 connectors.
What is a token in networking?
A token is a special frame that is passed from node to node around a ring network. When it gets to a node that needs to transmit data, the node changes the token into a data frame and transmits it to the recipient.
What is token ring used for?
Token Ring is a computer networking technology used to build local area networks. It was introduced by IBM in 1984, and standardized in 1989 as IEEE 802.5. It uses a special three-byte frame called a token that is passed around a logical ring of workstations or servers.
How does ring network work?
In a ring network each device (workstation , server , printer) is connected to two other devices – this forms a ring for the signals to travel around. Each packet of data on the network travels in one direction and each device receives each packet in turn until the destination device receives it.
Where is token ring used?
Token ring history But the most broadly deployed token ring protocols were those of IBM, released in the mid-1980s, and the standardized version of it known as IEEE 802.5, which appeared in the late 1980s. The use of token rings and 802.5 started declining in the 1990s. Today, they are considered inactive and obsolete.
What is token explain?
In general, a token is an object that represents something else, such as another object (either physical or virtual), or an abstract concept as, for example, a gift is sometimes referred to as a token of the giver’s esteem for the recipient. In computers, there are a number of types of tokens.