Deploying xdsl Solutions
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1 1 Deploying xdsl Solutions Session 2.scr 1
2 Defining xdsl: Digital Subscriber Loop Customer DSL Modem xdsl Copper Loop DSL Modem Value-Added Packet Network xdsl is an enabling Transmission Technology like dial, cable, T1, etc. The challenge centers around leveraging xdsl to deploy value-added solutions 3 Agenda xdsl Transmission Options End-to-end xdsl Architecture Choices and their Associated Configurations Operational Tools Examples of Deployed Services Upcoming Attractions Closing Remarks 4.scr 2
3 xdsl Transmission Options 5 What Is xdsl? POTS xdsl 0 Hz 4400 Hz 30 KHz 1 MHz Layer 1 Transmission Techniques That Deliver High Data Rates Over Existing Copper Telephone Lines by Making Use of the Higher Frequencies Spectrum 6.scr 3
4 xdsl Technology Options xdsl Transmission Option Max. Data Rate Down/Uplink (bps) Copper Pairs Required Analog Voice Support Max. Reach (km/kfeet) Modulation Method ADSL: Asymmetric 8M/1M 1 Yes 5.5/18 CAP DMT IDSL: ISDN 144K/144K 1 No 11/36 2B1Q SDSL: Symmetric 784K/784K 1 No 6.9/22 2B1Q HDSL2: High Bit Rate 1.5M 2.0M/ 1.5M 2.0M 2 No 4.6/15 2B1Q VDSL: Very High Bit Rate 52M/2M or 8M/8M 1 No.9/3 QUAM 7 xdsl Applications xdsl ADSL IDSL H/SDSL VDSL Application Telecommuting, Remote Office Connectivity, Intense Web Access Telecommuting, Remote Office Connectivity T1 Replacement, Remote Office Connectivity Video, V.R., Multimedia 8.scr 4
5 Frequency Spectrum Utilization 0 Transmit Power Spectra ISDN 2B1Q RADSL Upstream RADSL Downstream (1088 baud) PSD (dbm/hz) HDSL 2B1Q T1 AMI CAP and DMT RADSL are Spectrally Compatible Frequency (khz) 9 Typical Cable Plant Issues Mixture of 22, 24 and 26 gauge wire Load coils Bridge taps Repeaters Disturber model and spectral management 10.scr 5
6 ADSL Subscriber/Loop Qualification Typically an automated process Self directed, Web-based for individuals Bulk load and batch process for corporations Third-party test equipment available 2H 99 Rule of thumb for one key customer Relaxing ADSL disturber model 1 db or adding 1k feet of reach = 100k new loops On Average, Less Than 5% of the Copper Loops Qualified Require Conditioning 11 Analog Voice and RADSL Residence Central Office Internal u-filter DSLAM External u-filter Copper Pair Main Distribution Frame Data Splitters Analog Voice Voice Switch Consumer installable RADSL solution with no truck roll Utilizes distributed micro-filters versus Network Interface Design (NID) Compliant with standard PSD masks (CAP and DMT) 12.scr 6
7 End-to-End xdsl Architecture Choices and their Associated Configurations 13 xdsl Deployment Options Subscriber CPE DSLAM ILEC/CLEC Transport ATM ISP Wholesale Internet/VPN Tier 2/3 ISP Content Provider Corporate Internet/Web Hosting/ /VPN End-to-End (Voice Centric) 14.scr 7
8 Associated Architecture Options Subscriber CPE DSLAM ILEC/CLEC ATM Tier 2/3 ISP Content Provider Corporate ISP CPE: Connectivity Single/Multiple users Bridged/Routed Feature Set Service Selection xdsl: ADSL SDSL IDSL VDSL Edge Aggregation: PVC PPPoA PPPoE SVC Core: ATM Frame IP Tunneling MPLS End-Point: PPP/Tunneled ATM/Frame IP MPLS 15 Product Building Blocks (One Size Does Not Fit All) Subscriber CPE DSLAM ILEC/CLEC/IXC ATM Tier 2/3 ISP Content Provider Corporate CPE : Cisco 605/607 Cisco 673/675/677 Cisco 627/633 Cisco 7xx Cisco 14xx Cisco 26xx / 36xx DSLAM: Cisco 61xx Cisco 62xx Aggregation: 6400 MGX with 7200 Blade Core: BPX GSR Other End-Point: Cisco 7200 Cisco 6400 Cisco scr 8
9 Single Destination PVC Architecture Tier 2/3 ISP 6xx CPE PVC ATM Content Provider PVC per end point Destination owns end point and terminates PVC (PPP option) Protocol transparency 61xx DSLAM Corporate IP address independence CPE in bridge or routed mode with config options 17 Single Destination PVC Architecture Challenges PVC nailed up to a single destination Ability to scale core Coordination with end point on PVC PPPoE client software issues 18.scr 9
10 Layer 2 Service Selection AAA (Optional) Tier 2/3 ISP PPP Client ATM ATM/VC L2TP Tunnel Content Provider PPP Corporate PPP forwarded via tunnels or PPP termination/aggregation Layer 2TP/LF tunnel options Protocol transparency IP address independence PPP troubleshooting Radius accounting 19 PTA Similar to Wholesale Dial Wholesale Dial Internet PTA Internet ISP-1 ISP-2 NAS Sends AAA to GRS Internet Off-Load GRS ISP-3 AAA Performed Here GRS Re-Directs AAA ISP-1 ISP-2 PTA Software Directs AAA and Data Internet Off-Load ISP-3 20.scr 10
11 Layer 2 Service Selection Architecture Challenges New provisioning methods Requires an L2TP (LNS) server Layer 2 service selection PPP username@servicename 21 Layer 3 Service Selection via Enhanced Web Customer benefits Turn services on/off instantly Access multiple services simultaneously Access personalizedservice portfolio Select varying services security and quality options Service provider benefits Advertise services available Offer on-demand services Keeps users on-net Accounting and billing on usage 22.scr 11
12 Multiservice Profile Dashboard User Profiles jdoe Password = letmein Service = Internet Service = cisco.com Service = Games Service Profiles cisco.com Password = cisco vpdn:tunnel-id=cisco-gw vpdn:ip-addresses= vpdn:nas-password=12000 vpdn:gw-password=gsr dsmith Password = wombat Service = Internet Service = coke.com Service = Games Games Password = cisco vpdn:tunnel-id=games-gw vpdn:ip-addresses= vpdn:nas-password=space vpdn:gw-password=invader Radius Server VoIP Password = cisco vpdn:tunnel-id=voip-gw vpdn:ip-addresses= vpdn:nas-password=pin vpdn:gw-password=drop 23 Layer 3 Service Selection with Web Dashboard and SSG AAA Web Dashboard Tier 2/3 ISP CPE ATM SSG ATM/VC L2TP Tunnel Content Provider Cisco 61xx Cisco 6400 ATM/VC Corporate Account logon connects PPP or bridge to SSG As long as the account is logged on, the Web Interface is always available to connect and disconnect services 24.scr 12
13 Managed Business Service Architecture with (VoIP/VoATM) Cisco 2600 Cisco 3600 Cisco 633 SDSL CSU/DSU (v.35) with Frame Interworking Private Peering (Premium QoS) Jetstream IAD Cisco 677 DMT SDSL Cisco 61xx SDSL ATM, IP ISP POP Cisco 6400 Voice Gateway/ Call Agent ISP POP Corporate IP Phones Cisco 673 PSTN Ex. Jetstream CPX Managed Business Service Architecture Challenges Multiple market segments: LAN telephony, PBX extension/call center, Toll bypass, etc. Multiple end-to-end QoS levels: UBR, VBRnrt, VBRrt, and ABR Multiple options: xgcp, H.323, GR303, etc. 26.scr 13
14 MPLS and SVC Option Edge LSR ISP Edge LSR LSR LSR Edge LSR Edge LSR Edge LSR LSR LSR Edge LSR ISP PVC/SVC MPLS 27 Operational Tools 28.scr 14
15 Management Architecture Telnet ATM ATM In-band Mgmt. PVC ViewRunner SCM Cisco 6400 CPE In-band Mgmt. Channel CAP RADSL 6100 DSLAM Ethernet Out-of-band Mgmt. Access MIB Resource CPE Sub Agent Resource SNMP Mgmt. PVC Cisco 6100 MIB Agent Agent SNMP Mgmt. PVC ViewRunner HP OpenView Cisco 6400 MIB Service Connection Manager Agent Resource Resource Resource Resource 29 CPE Operational Tools Provisioning options Config Express Telnet/tftp, Serial port access Web Interface Performance management Extensive MIBs Layer 2/3 utilities optional commander for Subscriber Fault management Alarm traps/clears LED Indicator 30.scr 15
16 DSLAM/Concentrator Operational Tools Provisioning and configuration management Auto-discovery and domain views Performance management Logical pool and port statistics/ Connection and traffic statistics Fault management Alarm traps and clears Accounting management Oracle database extractions can feed legacy OSSs Security management Three ID/password access levels 31 Aggregator Operational Tools Provisioning options GUI wizard Telnet/ftp Predeployment of subscribers Performance management Extensive MIBs Automated map building Fault management Alarms 32.scr 16
17 Help Desk Tools Customer developed Web tool that integrates key information Reference via name, address, or phone number Leverages existing infrastructure Subscriber/service database Network management systems Trouble ticket system 33 End-to-End DSL Management Path OSS Cisco Provisioning Center CORBA or API Service Object Service Object Service Object Service Object Cisco ViewRunner for HP OpenView 6400 SCM NI-1/NI-2 NI-2 Only 90i Agent Other FR/ATM Switch EMS Cisco WAN Manager Service Providers CPE Cisco 6xxx FR/ATM Network Cisco 6400 CPE Cisco 90i 34.scr 17
18 Examples of Deployed Services 35 Shared Success - - -T- Deutsche Telecom CADENCE Source: Press Releases as of 5/22/99 36.scr 18
19 Service Offerings Subscriber Offering: Free CPE, installation option $150 Monthly ISP charge not included MegaHome 256 kbps access $30 per month MegaOffice 512 kbps access $65 per month MegaBusiness 768 kbps access $80 per month Source: Megabit Services Layer 2 High-Speed Access to a Single Destination End-Point Destination Offering: Hub of a hub and spoke design (MegaCentral) ATM access link DS1 or DS3 Bandwidth in 3Mbps increments Pricing based on: ATM port charge + bandwidth + DS3 access charge to ATM PoP Ability to reach users in LATA Subscriber s VPI/VCI info via: web site, , or bulk process RFC 1483 bridging or PPPoA 37 Service Offerings PLAnet Services High-speed Internet Access Residential Offering Professional Offering Small Business Offering Speed Price* Internet CPE Cost Installation* IP Address Address Web Space 512k x 1.5 Mbps $39.95/Month 5 Hrs./Month None $ Dynamic 3 5 MB 1 x 2.5 Mbps $99.95/Month 30 Hrs./Month None $175 5 Dynamic 5 5 MB 1 x 12.5 Mbps $164.95/Month 60 Hrs./Month None $175 5 Static 10 On Site Source: *Canadian Dollars 38.scr 19
20 Service Offerings ZoomTown Layer 3 Multidestination Service No cost CPE and installation special ZoomTown test drive on web site ZoomTown base speed 90k x 384 kbps access $29.95 per month ZoomTown turbo speed 384k x 768 kbps access $59.95 per month ZoomTown warp speed 768k x 1.5 mbps access $ per month Source: 39 Service Offerings Total Access Solutions National Provider of End-to-End Business Solutions Enterprise Telework IP-routed Telework Multiprotocol bridged Telework Branch office interconnect Internet access Source: 40.scr 20
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