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1、1Carrier Ethernet AccessExtending Ethernet into the First MileOctober 20082A key benefit of Carrier Ethernet is its ability to provide consistent, cost-efficient, high-performance services delivered to users connected over the widest variety of access networks in any locationIntroduction: Extending
2、Carrier Ethernet into the First MileThis presentation Describes how each access technology enables delivery of these and other Carrier Ethernet benefits to users connected to the worlds access networksCOAXDirect FiberWDM FiberDS3/E3Bonded CopperBonded T1/E1TDMDirect FiberSONET/ SDHPON FiberMSO/Cable
3、 networkCarrier networkCarrier Network3Carrier Ethernet Access Snapshot of a Growing Market Standards Driving Market Adoption Multi-Site Enterprise Application Example The enabling access technologies Wireless Backhaul Application Example The enabling Ethernet technologies Carrier Ethernet Benefits
4、Available with any access media Enhanced by ubiquitous service access4Growing Revenue from Carrier EthernetYankee Group 20085The Fiber Gap Remains a Growth Inhibitor10.7%15.3%89.3% No Fiber84.7% No Fiber2007 U.S. Fiber Availability % of U.S. Commercial Buildings with 20+ employees2007 European Fiber
5、 Availability % of European Commercial Buildings with 20+ employeesFiberFiberU.S.Europe85% of buildings dont have fiber and fiber deployment is not happening very fast6Whats Driving the Ethernet Migration?DIA, Private Lines, Dedicated IP VPN, Frame Relay are migrating to EthernetLegacy Services Whic
6、h Are Migrating to Ethernet (Sub-10Mbps)1.Frame Relay 2.Private Line 3.Dedicated Internet Access (DIA) 4.DSL 5.Greenfield/Other 6.Dedicated IP VPN Services 7.ATMSource: Vertical Systems Group 2008Business Ethernet Service Market7IP Applications Drive Ethernet DemandEthernet Service Applications Host
7、ed Centrex Service IP PBX / Digital Phone Distance Learning / Corporate Training Medical Imagining Secure file transfer Offsite Storage Transparent LAN Services Data Center Interconnection8Standards Driving Industry Adoption9MEF has Standardized the Basic ServicesE-Line Service used to create Ethern
8、et Private Lines (EPL) Virtual Private Lines Ethernet Internet AccessUNIMulti-point to Multi-point EVCUNI UNIUNIPoint-to-Point EVCUNIE-LAN Service used to create Multipoint L2 VPNs Transparent LAN Service Multicast networksE-Tree Service used to create Rooted multi-point L2 VPNs Broadcast networks T
9、elemetry networksRooted Multipoint EVCUNIUNIUNIGovernment, Campus ConnectivityHealthcare, Ethernet Private Line (EPL)Dedicated Internet Access (DIA)10MEF Standards for TDM Over Ethernet Circuit Emulation Services over Ethernet (CESoETH)Primary applications Mobile backhaul Business services delivery
10、PBX InterconnectMEF 18 Abstract Test Suite for Circuit Emulation Services over Ethernet MEF 3 Circuit Emulation Service Definitions, Framework and Requirements in Metro Ethernet Networks MEF 8 Implementation Agreement for the Emulation of PDH Circuits over Metro Ethernet NetworksTDM Circuits (e.g. T
11、1/E1 Lines)Carrier Ethernet NetworkTDM Circuits (e.g. T1/E1 Lines)Circuit EmulatedTDM TrafficMEF 3 Requirements for TDM transport over Ethernet Access MEF 8 Delivery of TDM (T1/E1, DS3/E3) transport over Ethernet Access MEF 18 Tests for compliance of CESoETH system 334 tests for T1/E1 and DS3/E3 inc
12、luding tests of clock recovery11What is Circuit Emulation Over Ethernet?Industrys first formal definition of CES standards over Ethernet CESoETH “tunnels” TDM traffic through a Carrier Ethernet network Packet network “emulates” a circuit-switched network, re-creating the TDM circuit Invisible to TDM
13、 source and destination equipment Runs on a standard Ethernet Line Service (E-Line) Treats the CEN as a “virtual wire” between two TDM networksPSTNCustomer PremisesCESoETHEthernet UNIEthernet UNIEthernetE-Line ServiceEthernetT1/DS3T1CES IWFTDM subscriber demarcationTDM Network InterfaceService Provi
14、der NetworkCESoETH can be delivered over any Ethernet access technology!Carrier Ethernet NetworkCES IWF12Managing the Carrier Ethernet with OAMDeveloped to provide fault management and performance monitoring tools for network links and end-to-end EVCsIEEE 802.3ahLink OAMLink OAMService OAM (UNI to U
15、NI)IEEE 802.1ag, MEF nearly impossible to tap linesScalability - EVC / E-Line / E-LAN using Q-in-Q VLAN - High capacity enables rate limiting tiered servicesReliability - Protection with redundant links & resilient rings - OAM performance monitoring & fault notificationSecure Service Management - 80
16、2.3ah OAM IP-less management & provisioning - NIDs provide securely managed demarcationCentral OfficeMedia ConversionMulti-Customer NID Demarcation20MSO/ Cable COAXDirect FiberDS3/E3Bonded CopperBonded T1/E1Carrier 2TDMEthernetEthernet EthernetEthernetEthernetEthernetEthernetDirect FiberSONET/ SDHPON FiberEthernetEthernetEthernetEthernet Over WDM FiberEthernet User to Netwo
