32
V. Liberatore
Pervasive Computing
QoS at IP
*QoS at data link
nE.g., priorities, token passing, VPN
nE.g., CAN, Ethernet
*QoS at IP
nProtocol
*IPv4: 4 basic Types-of-Service (ToS)
*IPv6: many flow ids, Classes-of-Service (CoS)
*QoS: from data link to IP
nCode-point mapping
nIP addresses