Token Bus Sublayer Protocol
- Send for some time then pass token
- If no data after that pass token right away
- Traffic classes 0, 2, 4 and 6 (highest)
- Internal substations for every station
- Set timer for how long to transmit
- Ex: 50 stations also 10 Mbps
- Desire priority 6 to have 1/3 bandwidth
- Then 67 Kbps each enough for voice + control