Nokia 7705 - 1 Preface; 1.1 About This Guide; 1.1.1 Audience

Quality of Service Guide
Edition: 01 3HE 11014 AAAC TQZZA 15
List of Figures
3 QoS and QoS Policies .................................................................23
Figure 1 Egress and Ingress Traffic Direction .........................................................27
Figure 2 Ingress and Egress Traffic on a 2-port 10GigE (Ethernet) Adapter
Card...........................................................................................................28
Figure 3 Access Ingress Scheduling for 4-Priority and 16-Priority SAPs
(with Per-SAP Aggregate Shapers)...........................................................38
Figure 4 Access Egress Scheduling for 4-Priority and 16-Priority SAPs
(with Per-SAP Aggregate Shapers) (per Port)...........................................39
Figure 5 Network Egress Shaped and Unshaped VLAN Queuing and
Scheduling.................................................................................................42
Figure 6 VLAN Shapers for Dual Uplinks ................................................................45
Figure 7 VLAN Shapers in Aggregation Site Scenario ............................................46
Figure 8 Hybrid Port Egress Shapers and Schedulers on Gen-2 Hardware ...........53
Figure 9 4-Priority Scheduling at Access Ingress (Gen-3 Hardware)......................58
Figure 10 4-Priority Scheduling at Access Egress (Gen-3 Hardware).......................59
Figure 11 4-Priority Scheduling at Network Ingress (Gen-3 Hardware): Per-
Destination Mode.......................................................................................61
Figure 12 4-Priority Scheduling at Network Ingress (Gen-3 Hardware):
Aggregate Mode........................................................................................62
Figure 13 4-Priority Scheduling at Network Egress (Gen-3 Hardware) on a
Network Port..............................................................................................63
Figure 14 4-Priority Scheduling for Hybrid Port Egress (Gen-3 Hardware)...............65
Figure 15 Ports on a 2-port 10GigE (Ethernet) Adapter Card ...................................67
Figure 16 4-Priority Scheduling .................................................................................80
Figure 17 Access Ingress Scheduling for 4-Priority and 16-Priority SAPs
(with Per-SAP Aggregate Shapers)...........................................................83
Figure 18 Access Ingress per-SAP Arbitration to Fabric ..........................................85
Figure 19 Fabric Shapers in Per Destination Mode...................................................90
Figure 20 Fabric Shapers in Aggregate Mode...........................................................91
Figure 21 Network Egress Shaped and Unshaped VLAN Queuing and
Scheduling...............................................................................................101
Figure 22 Access Egress 16-Priority and 4-Priority per-SAP Arbitration for a
Single Port...............................................................................................120
Figure 23 Traffic Queuing Model for Three Queues and Three Classes.................130
Figure 24 WRED for High-Priority and Low-Priority Traffic on the Same
Queue......................................................................................................154