Why is ring length important?
The design of any network is dependent on limits. In token ring networks, ring length is a large factor in the physical design of an error-free networ. If the ring is too long, timing and attenuation issues can create physical-layer errors, disrupting communication over the entire ring. In the design of a token ring network, total ring length dictates the maximum length of cable between the workstation and the MAU. This value, called the lobe length, can be computed with a series of tables. These tables are computed for passive MAU networks. Active MAUs provide capabilities that deviate greatly from the values in these tables. Consult the manufacturer of the active MAUs for values that are appropriate for that equipment.
