ABSTRACT
The advantage of token passing is predictability. Because the token moves through the network in a determined path, it is possible to calculate the best and worst cases for data transmission. This makes network performance predictable. It also means introduction of new network nodes will have a predictable effect. This differs from Ethernet, where the addition of new nodes may or may not seriously affect performance. However, claims for a "predictable" network can be misleading-for example, lost tokens will affect worst-case delivery times.
