Quality of Service (QoS)

Feature	ICX 7150	ICX 7250	ICX 7450	ICX 7550	ICX 7650	ICX 7850
Scheduling and queuing: Strict Priority (SP), Weighted Round Robin (WRR), Combined SP and WRR, 8 priority queues	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
802.1p classification and marking	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
DiffServ support	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
DSCP-based QoS (IPv4 and IPv6)	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
DSCP and PCP global remarking	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
QoS mappings (DSCP to CoS and vice versa)	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
User-configurable scheduler profiles	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
Ingress buffer management	08.0.60	08.0.30	08.0.20	No	08.0.70	No
Per-port PFC	No	08.0.40	08.0.40	No	No	No
Per-priority PFC	No	No	No	No	No	09.0.10a
Port Flow Control: Responds to flow control packets, but does not generate them	No	08.0.30	08.0.20	No	No	No
Symmetrical flow control: Can transmit and receive 802.3x PAUSE frames	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
Auto-negotiation and advertisement of flow control	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
QoS priority	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
Dynamic buffer allocation for QoS priorities (egress)	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
Egress queue counters	08.0.60	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90
Separate QoS queuing for unicast and multicast	No	08.0.30	08.0.20	08.0.95	08.0.70	08.0.90