Nokia 7705 - Page 4

4
Quality of Service Guide
3HE 11014 AAAC TQZZA Edition: 01
3.2.1 Access Ingress Traffic Classification.........................................................70
3.2.1.1 Traffic Classification Types........................................................................71
3.2.2 Access Ingress Queues.............................................................................74
3.2.3 Access Ingress Queuing and Scheduling..................................................75
3.2.3.1 Profiled (Rate-based) Scheduling..............................................................77
3.2.3.2 Queue-Type Scheduling............................................................................77
3.2.3.3 4-Priority Scheduling .................................................................................79
3.2.3.4 4-Priority (Gen-3) Scheduling....................................................................81
3.2.3.5 16-Priority Scheduling ...............................................................................81
3.2.3.6 Ingress Queuing and Scheduling for BMU Traffic .....................................81
3.2.4 Access Ingress Per-SAP Aggregate Shapers (Access Ingress H-
QoS) ..........................................................................................................82
3.2.4.1 Access Ingress Per-SAP Shapers Arbitration ..........................................84
3.2.5 Ingress Shaping to Fabric (Access and Network) .....................................86
3.2.5.1 BMU Support.............................................................................................86
3.2.5.2 LAG SAP Support (Access Only) ..............................................................87
3.2.6 Configurable Ingress Shaping to Fabric (Access and Network)................88
3.2.7 Fabric Shaping on the Fixed Platforms (Access and Network) .................92
3.3 Fabric Traffic..............................................................................................93
3.3.1 Traffic Flow Across the Fabric...................................................................93
3.4 Network Egress .........................................................................................94
3.4.1 BMU Traffic at Network Egress .................................................................94
3.4.2 Network Egress Queuing Aggregation ......................................................94
3.4.2.1 Network Egress Per-VLAN Queuing .........................................................95
3.4.3 Network Egress Scheduling ......................................................................95
3.4.3.1 Network Egress 4-Priority Scheduling.......................................................97
3.4.3.2 Network Egress 4-Priority (Gen-3) Scheduling..........................................98
3.4.3.3 Network Egress Scheduling on 8-port Ethernet Adapter Cards ................98
3.4.3.4 Network Egress 16-Priority Scheduling.....................................................99
3.4.4 Network Egress Shaping.........................................................................100
3.4.5 Network Egress Shaping for Hybrid Ports...............................................100
3.4.6 Network Egress Per-VLAN Shapers........................................................100
3.4.6.1 Network Egress Per-VLAN Shapers Arbitration ......................................102
3.4.7 Network Egress Marking and Re-Marking...............................................103
3.4.7.1 Network Egress Marking and Re-Marking on Ethernet ports ..................103
3.5 Network Ingress.......................................................................................104
3.5.1 Network Ingress Classification ................................................................104
3.5.1.1 Network Ingress Tunnel QoS Override....................................................105
3.5.2 Network Ingress Queuing........................................................................105
3.5.2.1 Network Ingress Queuing for BMU Traffic...............................................106
3.5.3 Network Ingress Scheduling....................................................................107
3.5.3.1 Network Ingress 4-Priority Scheduling ....................................................108
3.5.3.2 Network Ingress 4-Priority (Gen-3) Scheduling.......................................110
3.5.3.3 Network Ingress Scheduling on 8-port Ethernet Adapter Cards..............110
3.5.3.4 Network Ingress 16-Priority Scheduling ..................................................111
3.5.4 Network Ingress Shaping to Fabric .........................................................111
3.5.5 Configurable Network Ingress Shaping to Fabric....................................112
3.5.6 Network Fabric Shaping on the Fixed Platforms .....................................112
3.6 Access Egress.........................................................................................113