Cambium Networks PTP 820S, Техническое описание, Страница: 7 / 208

Contents
Figure 59 Synchronized Packet Loss ................................................................................................... 4-70
Figure 60 Random Packet Loss with Increased Capacity Utilization Using WRED ......................... 4-70
Figure 61 WRED Profile Curve ............................................................................................................. 4-71
Figure 62 Detailed H-QoS Diagram ..................................................................................................... 4-75
Figure 63 Scheduling Mechanism for a Single Service Bundle ........................................................ 4-77
Figure 64 Network Topology with PTP 820S Units and Third-Party Equipment ............................. 4-86
Figure 65 ABN Entity ............................................................................................................................. 4-86
Figure 66 G.8032 Ring in Idle (Normal) State ..................................................................................... 4-88
Figure 67 G.8032 Ring in Protecting State .......................................................................................... 4-89
Figure 68 Load Balancing Example in G.8032 Ring ........................................................................... 4-89
Figure 69 PTP 820S End-to-End Service Management ...................................................................... 4-92
Figure 70 SOAM Maintenance Entities (Example) ............................................................................. 4-93
Figure 71 EFM Maintenance Entities (Example) ................................................................................. 4-94
Figure 72 Transparent Clock Delay Compensation ............................................................................ 4-98
Figure 73 Integrated PTP 820S Management Tools ............................................................................. 5-2
Figure 74 Security Solution Architecture Concept ............................................................................. 5-16
List of Tables
Figure 1 PTP 820S Rear View (Left) and Front View (Right) ................................................................ 2-2
Figure 2 Cable Gland Construction ........................................................................................................ 2-2
Figure 3 PTP 820S Block Diagram ......................................................................................................... 2-3
Figure 4 PTP 820S Interfaces .................................................................................................................. 2-4
Figure 5 Protection Signalling Cable Pinouts ....................................................................................... 2-5
Figure 6 PoE Injector ............................................................................................................................... 2-7
Figure 7 PoE Injector Ports ..................................................................................................................... 2-8
Figure 8 Header De-Duplication ............................................................................................................. 4-3
Figure 9 Header De-Duplication Operation on Frame Structure ......................................................... 4-5
Figure 10 Propagation Delay with and without Frame Cut-Through ................................................. 4-6
Figure 11 Frame Cut-Through ................................................................................................................ 4-7
Figure 12 Frame Cut-Through ................................................................................................................ 4-7
Figure 13 Adaptive Coding and Modulation with 11 Working Points ................................................ 4-8
Figure 14 1+1 HSB Protection – Line Protection Mode ...................................................................... 4-10
Figure 15 1+1 HSB Protection – Split Protection Mode ..................................................................... 4-11
Figure 16 Multiple Traffic Interfaces with Optical Splitters ............................................................... 4-11
Figure 17 Internal and Local Management ......................................................................................... 4-12
Figure 18 Basic Ethernet Service Model ............................................................................................. 4-17
Figure 19 Ethernet Virtual Connection (EVC) ...................................................................................... 4-17
Figure 20 Point to Point EVC ................................................................................................................ 4-18
Figure 21 Multipoint to Multipoint EVC ............................................................................................... 4-18
Figure 22 Rooted Multipoint EVC ........................................................................................................ 4-19
Figure 23 MEF Ethernet Services Definition Framework ................................................................... 4-20
Figure 24 E-Line Service Type Using Point-to-Point EVC .................................................................. 4-22
Figure 25 EPL Application Example ..................................................................................................... 4-22
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