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Alcatel-Lucent 7750 SR OS - Page 13

Alcatel-Lucent 7750 SR OS
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7750 SR OS Services Guide Page 13
List of Figures
Services Overview
Figure 1: Unicast Service Queue Mapping to Multiple Destination Based Hardware Queues . . . . . . . . .30
Figure 2: Unicast Service Queuing With Shared Queuing Enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Figure 3: Multipoint Queue Behavior with Shared Queuing Enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Figure 4: Multipoint Shared Queuing Using First Pass Unicast Queues . . . . . . . . . . . . . . . . . . . . . . . . .33
Figure 5: Service Entities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 6: Service Access Point (SAP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Figure 7: Multiple SAPs on a Single Port/Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Figure 8: A GRE Service Distribution Point (SDP) pointing from ALA-A to ALA-B . . . . . . . . . . . . . . . . . .42
Figure 9: Class-Based Forwarding over SDP LSPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Figure 10: Service Creation and Implementation Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Figure 11: Subscriber Service Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Figure 12: Global Service CLI Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Figure 13: Core and Subscriber Tasks Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
VLL Services
Figure 14: Epipe/VLL Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
Figure 15: Application of Ethernet Interworking VLL Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
Figure 16: ATM VLL for End-to-End ATM Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
Figure 17: VT Application Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Figure 18: Application of a Frame Relay VLL Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Figure 19: Frame Relay-to-ATM Network Interworking (FRF.5) VLL . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
Figure 20: IP Interworking VLL (Ipipe) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
Figure 21: IP Interworking VLL Datapath . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Figure 22: Pseudowire Service Switching Node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
Figure 23: VLL Resilience with Pseudowire Redundancy and Switching . . . . . . . . . . . . . . . . . . . . . . . . .127
Figure 24: VLL Resilience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130
Figure 25: Access Node Resilience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
Figure 26: VLL Resilience with Pseudowire Redundancy and Switching . . . . . . . . . . . . . . . . . . . . . . . . .135
Figure 27: Redundant VLL Endpoint Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
Figure 28: SDP Statistics for VPLS and VLL Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143
Figure 29: SDPs — Uni-Directional Tunnels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173
Figure 30: VLL Resilience with Pseudowire Redundancy and Switching . . . . . . . . . . . . . . . . . . . . . . . . .195
Figure 31: VLL Resilience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .199
Figure 32: VLL Resilience with PW Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .201
Virtual Private LAN Service
Figure 33: MAC Learning Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .326
Figure 34: VPLS Service Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .327
Figure 35: Access Port Ingress Packet Format and Lookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .327
Figure 36: Network Port Egress Packet Format and Flooding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .328
Figure 37: Access Port Egress Packet Format and Lookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .329
Figure 38: HVPLS with Spoke Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .351
Figure 39: HVPLS with SAP Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .352
Figure 40: Dual Homed CE Connection to VPLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .353
Figure 41: Application 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355
Figure 42: SDP Statistics for VPLS and VLL Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .356

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