List of Figures

Figure 1: Traffic Flow Through an E Series Router
Figure 2: Packets Dropped as Queue Length Increases
Figure 3: Color-Blind RED Drop Profile with Colorless Queue Profile
Figure 4: Color-Blind RED Drop Profile with Color-Sensitive Queue Profile
Figure 5: Different Treatment of Colored Packets
Figure 6: Defining Different Drop Behavior for Each Queue
Figure 7: WRED and Dynamic Queue Thresholding
Figure 8: QoS Scheduler Hierarchy
Figure 9: Port Shaping on an Ethernet Module
Figure 10: Hierarchical Assured Rate
Figure 11: Sample Strict-Priority Scheduling Hierarchy
Figure 12: True Strict-Priority Configuration
Figure 13: Relative Strict-Priority Configuration
Figure 14: Tuning Latency on Strict-Priority Queues
Figure 15: Sample Strict-Priority Scheduling Hierarchy
Figure 16: Sample Relative Strict-Priority Scheduler Hierarchy
Figure 17: Implicit Constituent Selection for Compound Shared Shaper: Mixed Interface Types
Figure 18: Simple Shared Shaping over ATM
Figure 19: Simple Shared Shaping over Ethernet
Figure 20: Simple Shared Shaping over ATM
Figure 21: VP Shared Shaping
Figure 22: Hierarchical Simple Shared Shaping over Ethernet
Figure 23: Simple Shared Shaper Behavior Without Algorithm Controls
Figure 24: Less Conservative Simple Shared Shaper Behavior
Figure 25: More Liberal Simple Shared Shaper Behavior
Figure 26: Dynamic Rate When Video Flow Starts
Figure 27: Dynamic Rate When Video Flow Stops
Figure 28: VC Compound Shared Shaping Example
Figure 29: VP Compound Shared Shaping Example
Figure 30: Implicit Constituent Selection for Compound Shared Shaper at Best-Effort Node
Figure 31: Implicit Constituent Selection for Compound Shared Shaper at Best-Effort Queue
Figure 32: Weighted Shared Shaping
Figure 33: Implicit Constituent Selection for Compound Shared Shaper: Mixed Interface Types
Figure 34: Explicit Constituent Selection
Figure 35: Case 1: Explicit Constituent Selection with Weighted Constituents
Figure 36: Case 2: Explicit Constituent Selection with Weighted Constituents
Figure 37: Munged Profile Example
Figure 38: Attaching QoS Profiles to ATM Subinterfaces
Figure 39: Attaching QoS Profile to ATM Interface and Subinterface
Figure 40: DiffServ Configuration with Multiple Traffic-Class Groups
Figure 41: DiffServ Configuration Without Traffic-Class Groups
Figure 42: Phantom Nodes
Figure 43: Shadow Nodes
Figure 44: Integrated ATM Scheduler
Figure 45: Default Integrated Mode
Figure 46: Low-Latency Mode
Figure 47: Low-CDV Mode (per-VP CDVT)
Figure 48: Low-CDV Mode (per-VC CDVT)
Figure 49: 802.3ad Link Aggregation Scheduler Hierarchy
Figure 50: Subscriber LoadBalanced Scheduler Hierarchy for Port 0
Figure 51: Subscriber LoadBalanced Scheduler Hierarchy for Port 1
Figure 52: Subscriber Allocation and Load Balancing
Figure 53: LNS (Non-MLPPP) Scheduler Hierarchy
Figure 54: LNS (MLPPP) QoS Scheduler Hierarchy
Figure 55: LAC over Ethernet (Without VLANs) Scheduler Hierarchy
Figure 56: LAC over Ethernet (With LANs) Scheduler Hierarchy
Figure 57: LAC over ATM
Figure 58: VLAN Interface Column with Interface Sets
Figure 59: Scheduler Hierarchy with Nodes at Interface Set and Superset
Figure 60: Relationship of Parameter Definitions, Scheduler Profiles, and QoS Profiles
Figure 61: Physical Network Topology
Figure 62: QoS Scheduler Hierarchy
Figure 63: Hierarchical Parameters Scheduler Hierarchy
Figure 64: Scheduler Hierarchy with QoS Adjustment for IP Multicast
Figure 65: Byte Adjustment for VC1 and VC2
Figure 66: Byte Adjustment Calculation for Ethernet and ATM Encapsulations