List of Figures

Figure 1: Packet Flow Across the Network

Figure 2: M Series Routers Packet Forwarding Engine Components and Data Flow

Figure 3: MX Series Router Packet Forwarding and Data Flow

Figure 4: Packet Handling on the M Series and T Series Routers

Figure 5: Packet Handling on the MX Series Routers

Figure 6: T Series Router Packet Forwarding Engine Components and Data Flow

Figure 7: CoS Classifier, Queues, and Scheduler

Figure 8: Packet Flow Through CoS Configurable Components

Figure 9: Flow of Tricolor Marking Policer Operation

Figure 10: Tricolor Marking Sample Topology

Figure 11: Customer-Facing and Core-Facing Forwarding Classes

Figure 12: Sample CoS-Based Forwarding

Figure 13: Aggregated Ethernet Primary and Backup Links

Figure 14: Building a Scheduler Hierarchy

Figure 15: Handling Remaining Traffic

Figure 16: Another Example of Handling Remaining Traffic

Figure 17: Hierarchical Schedulers and Priorities

Figure 18: Segmented and Interpolated Drop Profiles

Figure 19: Segmented and Interpolated Drop Profiles

Figure 20: Packet Flow Across the Network

Figure 21: CoS with a Tunnel Configuration

Figure 22: Trio DPC and MPC/MIC interface Per-unit Scheduler Node Scaling

Figure 23: Trio DPC and MPC/MIC interface Hierarchical Scheduling Node Scaling

Figure 24: Architecture for Trio DPC and MPC/MIC interface Per-priority Shaping

Figure 25: Scheduling Hierarchy for Trio Per-Priority Shaping

Figure 26: Example Trio MPC/MIC interface Scheduling Hierarchy

Figure 27: Sample Network Topology for Downstream Traffic

Figure 28: Scaled Mode for Aggregated Ethernet Interfaces

Figure 29: Replicated Mode for Aggregated Ethernet Interfaces

Figure 30: Example Topology for Router with Eight Queues