sonet 101

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What are the Benefits of SONET? Node A Node C Node B Node D Most Existing Asynchronous Systems are Point-to-Point 28 Node A Node B Node C (Hub) Node D Synchronous Systems Such as SONET Allow Ease of Implementing Multi-Point Configurations Traffic terminating at B (OC-n) Traffic terminating at A (OC-m) Grooming Direction Combined traffic Segregation Consolidation Figure 3-2 • Point-to-Point Versus Multi-Point and Grooming
What are the Benefits of SONET? MULTI-POINT CONFIGURATIONS Figure 3-2 illustrates the difference between point-to-point and multi-point systems. Most existing asynchronous systems are only suitable for point-to-point, whereas SONET supports a multi-point or hub configuration. A hub is an intermediate site from which traffic is distributed to three or more spurs. The hub allows the four nodes or sites to communicate as a single network instead of three separate systems. Hubbing reduces requirements for backto-back multiplexing and demultiplexing, and helps realize the benefits of traffic grooming. Network providers no longer need to own and maintain customer-located equipment. A multi-point implementation permits OC-n interconnects or mid-span meet, allowing network providers and their customers to optimize their shared use of the SONET infrastructure. 29 SONET <strong>101</strong>
Page 1: HDSL About • IXC • BISDN • CC
Page 4 and 5: What is SONET? Figure 1-1 • SONET
Page 6 and 7: What is SONET? STS-1 51.84 Mbps STS
Page 8 and 9: What is SONET? Figure 1-3 • ISDN
Page 10 and 11: What is SONET? Transport Overhead S
Page 12 and 13: What is SONET? Path Terminating Equ
Page 14 and 15: What is SONET? VT payloads and VT p
Page 16 and 17: What is SONET? STS Path Overhead Fi
Page 18 and 19: What is SONET? Frame 1 STS-1 Pointe
Page 20 and 21: What is SONET? SONET NETWORK ELEMEN
Page 22 and 23: What is SONET? Broadband Digital Cr
Page 24 and 25: Why Synchronize? SYNCHRONIZATION HI
Page 26 and 27: Why Synchronize? External Reference
Page 30 and 31: What are the Benefits of SONET? GRO
Page 32 and 33: What are the Benefits of SONET? DSX
Page 34 and 35: What are the Benefits of SONET? NEW
Page 36 and 37: What are the Benefits of SONET? OPT
Page 38 and 39: SONET OAM&P FOTS A FOTS DSX or Digi
Page 40 and 41: SONET OAM&P Interexchange Carrier N
Page 42 and 43: SONET OAM&P TELECOMMUNICATIONS MANA
Page 45 and 46: 5 HDSL SONET • IXC • BISDN •
Page 47 and 48: SONET Networking Switching Node DSX
Page 49 and 50: SONET Networking Enhanced Survivabi
Page 51 and 52: SONET Networking Local Inter-Node D
Page 53 and 54: SONET Networking OC-n OC-n City A C
Page 55 and 56: SONET Networking HUB — Switching
Page 57: SONET Networking Hub Application Un
Page 60 and 61: Synchronous Digital Hierarchy Conve
Page 62 and 63: Contributions to SONET Working in c
Page 64 and 65: List of Terms CEPT—European Confe
Page 66 and 67: List of Terms Packet Switching—An

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