Flow o IP packet can be associated with a flow Distinguishable stream of related IP packets t From single user activity Requiring same Qos h E. g. one transport connection or one video stream Unidirectional t Can be more than one recipient ●Ⅳ Multicast Membership of flow identified by source and destination IP address, port numbers, protocol type IPv6 header flow identifier can be used but isnot necessarily equivalent to ISA flow7 Flow IP packet can be associated with a flow ◼ Distinguishable stream of related IP packets ◼ From single user activity ◼ Requiring same QoS ◼ E.g. one transport connection or one video stream ◼ Unidirectional ◼ Can be more than one recipient  Multicast ◼ Membership of flow identified by source and destination IP address, port numbers, protocol type ◼ IPv6 header flow identifier can be used but isnot necessarily equivalent to ISA flow