ATM Traffic Classes
CBR,VBR for voice, video:“higher priority”
ABR, GFR, UBR for data: uses “left over capacity”
ABR properties: low latency, high throughput, fairness among contending sources, and low cell loss.
UBR properties: No guarantees. Happy-go-lucky.
GFR properties:
- Minimum rate provided through simple signaling and buffer management.
- Intermediate to ABR and UBR - similar to frame relay.