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SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Network ManagementNetwork ManagementIt’s Not Just Status Monitoring Any MoreIt’s Not Just Status Monitoring Any More
Raj K. DeshpandeRaj K. DeshpandeIPNS Network Operation SolutionsIPNS Network Operation SolutionsBroadband Communication SectorBroadband Communication Sector
Motorola Inc.Motorola Inc.
presented at:presented at:SCTE Chicago Chapter Seminar SeriesSCTE Chicago Chapter Seminar Series
September 21, 2000September 21, 2000
Company ConfidentialCompany Confidential
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
MSO Operations ChallengesMSO Operations Challenges
Company ConfidentialCompany Confidential
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
The Cable Video ServiceThe Cable Video Service
Satellite & Off-air Video
Digital Video Access
Controller
Video Servers
Interactive Application
Servers
Return PathDemod
RF/Optical Headend
Out-of-band Modulator
Integrated Receiver
Transcoder
Modular Processing
System
Interactive Network
Controller
DCT
TVOther
Home Configurations
OpticalNode
RF Distribution
Video Distribution
Video Content
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
The Cable Data ServiceThe Cable Data Service
ISP POPInternet
Satellite & Off-air Video
Digital Video Access
Controller
Video Servers
Interactive Application
Servers
DNS/DHCP Server
Return PathDemod
RF/Optical Headend
Out-of-band Modulator
Integrated Receiver
Transcoder
Modular Processing
System
Interactive Network
Controller
Cable Modem
DCT
PCHome LAN
TVOther
Home Configurations
OpticalNode
OpticalNode
RF Distribution
Video Distribution
CMTSEdge Router
Video Content
VPN FirewallInternet
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
The Cable Telephone ServiceThe Cable Telephone Service
PSTN Gateway
Call Controller
ISP POP
PSTN
Internet
Satellite & Off-air Video
Digital Video Access
Controller
Video Servers
Interactive Application
Servers
DNS/DHCP Server
Return PathDemod
RF/Optical Headend
Out-of-band Modulator
Integrated Receiver
Transcoder
Modular Processing
System
Interactive Network
Controller
Communi-cations
Gateway
Cable Modem
DCT/TA
DCT
TelephonePC
Telephony Adapter
Home LAN
PCHome LAN
TelephoneTV
Home LAN
PCOther
Telephone
TVOther
Home Configurations
OpticalNode
OpticalNode
OpticalNode
OpticalNode
RF Distribution
Video Distribution
CMTSEdge Router
Video Content
IPDTVPN FirewallInternet
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
The “Box” ViewThe “Box” View
PSTN Gateway
Call Controller
ISP POP
PSTN
Internet
Satellite & Off-air Video
Digital Video Access
Controller
Video Servers
Interactive Application
Servers
DNS/DHCP Server
Return PathDemod
RF/Optical Headend
Out-of-band Modulator
Integrated Receiver
Transcoder
Modular Processing
System
Interactive Network
Controller
Communi-cations
Gateway
Cable Modem
DCT/TA
DCT
TelephonePC
Telephony Adapter
Home LAN
PCHome LAN
TelephoneTV
Home LAN
PCOther
Telephone
TVOther
Home Configurations
OpticalNode
OpticalNode
OpticalNode
OpticalNode
RF Distribution
Video Distribution
CMTSEdge Router
Video Content
IPDTBroadband
Media Gateway
PC Based Player
TV Based PlayerOpticalNode
StreamingMedia
Server
StreamingMedia Portal
Private Internet
VPN FirewallInternet
Operations Support Systems
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Service Provider / Network OperatorService Provider / Network Operator
Digital Video Infrastructure
(Proprietary)
Digital Video Infrastructure
(Proprietary)
Broadcast Video Services Interactive SettopInteractive Settop
Yesterday’s Management ChallengeYesterday’s Management Challenge
HFCPlant
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Service Provider / Network OperatorService Provider / Network Operator
Regional/HeadendNetwork
HFCPlant
Digital Video Infrastructure
(Proprietary)
Digital Video Infrastructure
(Proprietary)
Telephony Infrastructure
(Proprietary)
Telephony Infrastructure
(Proprietary)
IP Data Infrastructure(DOCSIS)
IP Data Infrastructure(DOCSIS)
Broadcast Video Services
Video on Demand Services
Interactive App Services
Telephony Services
Internet Access Services
Interactive SettopInteractive Settop
Cable ModemCable Modem
NIUNIU
Today’s Management ChallengeToday’s Management Challenge
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Network OperatorNetwork Operator
Regional/HeadendNetwork
HFCPlant
Service ProvidersService Providers
Digital Video Infrastructure
(OpenCable)
Digital Video Infrastructure
(OpenCable)
Telephony Infrastructure
(PacketCable)
Telephony Infrastructure
(PacketCable)
IP Data Infrastructure(DOCSIS)
IP Data Infrastructure(DOCSIS)
Broadcast Video Services
Video on Demand Services
Interactive App Services
CLEC Telephony Services
Internet Access Services
Streaming Media Services
Interactive SettopInteractive Settop
Advanced Interactive Settop
Advanced Interactive Settop
Cable ModemCable Modem
BTIBTI
MTAMTA
Tomorrow’s Management ChallengeTomorrow’s Management Challenge
Residential Gateway
Residential Gateway
VPNServices
Home NetworkServices
Video Telephony Services
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Addressing Today’s Management ChallengesAddressing Today’s Management Challenges
Service Provider / Network OperatorService Provider / Network Operator
Regional/HeadendNetwork
HFCPlant
Digital Video Infrastructure
(Proprietary)
Digital Video Infrastructure
(Proprietary)
Telephony Infrastructure
(Proprietary)
Telephony Infrastructure
(Proprietary)
IP Data Infrastructure(DOCSIS)
IP Data Infrastructure(DOCSIS)
Broadcast Video Services
Video on Demand Services
Interactive App Services
Telephony Services
Internet Access Services
Interactive SettopInteractive Settop
Cable ModemCable Modem
NIUNIU
Network integrity
Infrastructure configuration and integrity
Service provisioning Device
management
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Network OperatorNetwork Operator
Regional/HeadendNetwork
HFCPlant
Service ProvidersService Providers
Digital Video Infrastructure
(OpenCable)
Digital Video Infrastructure
(OpenCable)
Telephony Infrastructure
(PacketCable)
Telephony Infrastructure
(PacketCable)
IP Data Infrastructure(DOCSIS)
IP Data Infrastructure(DOCSIS)
Broadcast Video Services
Video on Demand Services
Interactive App Services
CLEC Telephony Services
Internet Access Services
Streaming Media Services
Interactive SettopInteractive Settop
Advanced Interactive Settop
Advanced Interactive Settop
Cable ModemCable Modem
BTIBTI
MTAMTA
Residential Gateway
Residential Gateway
VPNServices
Home NetworkServices
Video Telephony Services
Addressing Tomorrow’s Management Addressing Tomorrow’s Management ChallengesChallenges
Mediated access
Service Level
Agreement
Integrated infrastructure management
Automated provisioning
Carrier-grade performance
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
What is OSS for Cable Networks?What is OSS for Cable Networks?
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Management ScopeManagement Scope• Network Management
– Configure and Activate Network Elements– Monitor and perform pro-active maintenance of the Network
Elements– Provide standard open interfaces for multi-vendor, multi-solution
integrated network management.– Provide open interfaces to allow necessary instrumentation of
Network Elements to enable end-customer service activation and modification
– Provide applications that enable the customer to enhance the network by add/modify of Network Elements
• Service Management– Provide applications for service activation - integrate with customer
work flow management solution– Provide applications for reliable billing - integrate with customer
billing and service assurance applications.– Provide applications that enable simple, self, single-click service
activation
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Key OSS FunctionsKey OSS Functions
Functions• Configuration management• Fault detection and isolation• Performance monitoring• Accounting and billing• Security and access control
Service Management
Element Management
Network Management
• Video• VOD• Interactive Apps• Streaming Media• VPN
• HFC network• Regional network
Motorola proprietary• Settops• Data headend• Outside plant• Digital headend• Transmission headend
Standards-based• Settop• Residential gateway• PacketCable BTI• DOCSIS cable modem
Laye
rs • DOCSIS infrastructure• Telephony infrastructure• Video infrastructure
• Home Network• Internet Access• Video Telephony• Voice Telephony
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Management FunctionsManagement Functions• Configuration
– Service Activation– Network Provisioning– Resource Management
• Fault– Fault Reporting– Correlation/Summarization
• Performance– Service Level Agreements– Performance Monitoring
• Security– Network Security– Access Control– Key Management
• Accounting– Usage Monitoring– Transaction Records
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
How do we approach the problem space ?How do we approach the problem space ?Example OSS solutionExample OSS solution
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
OSS Reference ArchitectureOSS Reference Architecture
Mediation &Provisioning Engine
Mediation &Provisioning EngineService
Managers
ISPService
OSS/BSS
ISPService
OSS/BSS
Network Managers
Element Managers
Network Elements
CPECPE RegionalIP NetworkRegional
IP NetworkRegional
FiberNetwork
RegionalFiber
Network
Network Operator
Service Provider
VideoHeadendVideo
HeadendTelephonyHeadend
TelephonyHeadend
Trans.HeadendTrans.
HeadendData
HeadendData
Headend
EMSEMS
OutsidePlant
OutsidePlant
EMSEMSEMSEMSEMSEMSEMSEMSEMSEMSEMSEMSEMSEMS
TelephonyService
OSS/BSS
TelephonyService
OSS/BSS
VideoService
OSS/BSS
VideoService
OSS/BSS
DataManagerData
Manager VoiceManagerVoice
ManagerVideoManagerVideo
Manager
OSS/
BSS
RegionalNetwork Manager
RegionalNetwork Manager
Broadband Network Resource Manager
Broadband Network Resource Manager
Address Manager
(DHCP / DNS)
Address Manager
(DHCP / DNS)
HFC Access Network Manager
HFC Access Network Manager
PacketCable Security Manager
PacketCable Security Manager
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Motorola Provisioning SolutionMotorola Provisioning Solution• Supports Rapid Deployment
– Easily integrated into existing Higher Level OSS architectures – Web-based interface (either CSR or consumer)
• Customer self provisioning– Secure subscriber interface– Supports retail model– Self-service upgrades and addition of new services– Impulse and on-demand services
• Fully scalable– Supports multiple BTI EMSs, IPDTs, DHCP and TFTP servers– Supports DNS for naming individual BTIs
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
HFC Access Network ManagerHFC Access Network Manager• Configuration management
– Network element configuration tools– Interface with provisioning and inventory systems
• Fault management– Alarm management and correlation
• Performance management– Collect and process performance related statistics– Track performance versus SLA’s and QoS business commitments
• Accounting management– Collect usage / transaction based statistics; forward to billing
systems• Security management
– Ensure information is shared with the appropriate users/systems
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Network Resource ManagerNetwork Resource Manager• Resources
– Hardware• Plant• Headend
– Spectrum• Upstream• Downstream• Network segments
– Channel bandwidth• DOCSIS• MPEG• Special purpose
– IP addresses
DeploymentDeploymentMonitoringMonitoring
PlanningPlanning
Configuration Information
Utilization Data
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Network Resource ManagerNetwork Resource Manager• Planning
– Plan from forecast or utilization data– Integrated planning of network layers
• Master plan for all critical resources• Consistency checking across/among layers
• Deployment– Coordinated configuration parameters across network
devices• Monitoring
– Utilization and performance statistic collection– Alarms– Reports
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Address Management ServerAddress Management Server• Rapidly design & deploy IP infrastructure
– Full featured GUI – easy management and troubleshooting • Create and manage large domains
– Diagnostic tools – including logging of all DHCP operations/events – Support address pools on multiple subnets
• Standards based and extensible – Compliant with relevant RFC’s: 1542, 2131, 2132, 1034, 1035, 2136,
1995, 1996 – Name Synchronization between DHCP and DNS – Supports Redundant DHCP servers – Extensibility – providing the ability to write custom define extensions
to the DCHP process – Support of Custom DHCP options – Client class support to differentiate services to clients
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
PacketCable Security ManagerPacketCable Security Manager• Provides authentication and key management
services to maintain integrity of PacketCable security mechanisms
• Kerberos Distribution Center (KDC) supporting public key initialization (PKINIT)– Authentication server (AS)
• Validates identity of BTIs– Ticket granting server (TGS)
• Provides ticket to BTIs for signaling with call agents/IPDTs• Interacts with provisioning servers and call agents• Initial distribution plus periodic renewal
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
CPE ManagerCPE Manager• Device Configuration
– MTA / CM downloadable configurations• Life-test polling
– 20k devices each 15 min.• Event Viewer (trap / Inform)• Device Viewer / Editor• Topology
– Device Discovery CMTS, BTI, CM– Node representation
• Supports PacketCable MTA MIBs• Web based Client
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
CMTS ManagerCMTS Manager• DCM EMS (Voice & Data)• IFM EMS• RFM EMS• Functionality
– Polling (configurable)– Data Collectors– Trap collection and filters– Device viewer / editor– Ping and Loop back tests– Web based clients– Trap forwarding to HFC ANM
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
HFC Plant Management with HFC Plant Management with the Broadband Test Pointthe Broadband Test Point
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000Advanced Services and the Advanced Services and the HFC Network HFC Network
• HFC networks were designed primarily to support the distribution of broadcast media, specifically video.
• HFC networks have several “interesting” characteristics, namely:– HFC network designs rely on a “Shared Network” with many single points of
failure. A single failure could result in loss of service to “many” customers.– Historically the majority of the HFC network is NOT “managed”– HFC designs include a lot of return path “combining”. Potentially adverse
condition relative to return path ingress.• Comprehensive network management and modified plant designs can
provide five nines of availability.
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
IP / PSTNNETWORK
X
Hybrid Fiber-Coax
Network
Note 1. High-Day Busy Hour = 14% active phones
Note 2: At 20% penetration rate
•Forward Path HFC-network ‘Event’•RF Bandwidth Degradation•Fiber-optic Equipment Failure•RF Equipment Failure•Interconnection Failure
The HFC Network was Not ideally Architected to support Telephony• Older designs rely on SHARED resources which can greatly impact network and service availability.
• Specific failures in a SHARED resource in an older network in a typical forward-path will impact up to500 active POTs calls1 and 4000 POTS lines2 in an environment with 18,000 homes-passed.
• Historical solutions leave 99% of the forward-path HFC shared resources unmanaged.
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
IP / PSTNNETWORK
Hybrid Fiber-Coax
Network
Note 1: At 20% penetration rate
Note 2. High-Day Busy Hour = 14% active phones
•Return Path HFC-network ‘Event’•RF Noise•Interconnection Failure
The HFC Access-Network Was Not Architected for Telephony•Return path network events are exacerbated by the use of COMBINING resources.
•Certain failures in a SINGLE, UNSHAREDresource in a typical return path will impact all 500 active POTs calls, 4,000 POTS lines in an environment with 20,000 homes-passed.
•Any wired home with or without a terminal device is effectively a shared-resource on the HFC network with potential to impact all 500 active POTs calls and 4,000 POTS lines
•Current solutions leave the return path effectively unmanaged.
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Hybrid Fiber-Coax
Network
•In-Line Digital Instrumentation•Detects Return-Path Problems•Sectionalizes Problems•Provides Actionable Alerts•Limits Network Exposure to Return Path Noise
Proposed Step-Function Improvement in HFC Network Management•Comprehensive management of the HFC forward-path via intelligent end-terminal devices.
•Comprehensive management of the HFC return-path via intelligent network test points.
IP / PSTNNETWORK
•Intelligent End-Terminal Devices•Detects Forward-Path Problems•Sectionalizes Problems•Provides Actionable Alerts•Limits Network Exposure to Return Path Noise
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Broadband Test PointBroadband Test Point
• Resides on strands or in nodes• Correlates DOCSIS MAC and end device responses to identify
downstream devices for topology discovery• Measures upstream and downstream digital performance• Measures upstream “quiet” noise conditions
DOCSISCable
Modem
Downstream from CMTS
Upstream fromEnd
Devices
RF/DigitalNoise
Measurement
Control/Data
StorageUpstream to CMTS
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Broadband Test PointBroadband Test Point• Automatically discovers and locates all DOCSIS devices (CM,
BTI, DCT5000s and other BTPs)– Enables segmentation of network via autodiscovery– Supports mass deployments of DOCSIS and PacketCable devices
• Proactive ingress management – Find ingress source before it affects service levels– Integral part of Motorola’s bandwidth management solution
• Data reduction – Automates evaluation of spectrum analysis plots– Actionable alarms: alarms are limited to high confidence events,
declared events are linked to a physical location• May be used with any plant design, not just “Motorola” plants
* Patent Pending
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
1,2,3,4,5,6,7,8, 9,10,11,12 100, 101
1200 Home-PassedServing Area
(1 of 16 per Hub)
CMTS Receive CMTS Transmit
105
Forward Path Lasers (4)
Return Path Receivers(16
)
Fiber-Optic Nodes (16)
Bi-directional RF Amplifiers (800 -1000)
20K Home-Passed Hub
Knows: 1,2,3,4
1 2 3 4
5 6 7 8
9 10 11 12
100
101
102
103
104
1,2,3,4,5,6,7,8, 100
1,2,3,4,5,6,7,8, 9,10,11,12 100, 101,102
1,2,3,4,5,6,7,8, 9,10,11,12 100, 101,102, 103 1,2,3,4,5,6,7,8,
9,10,11,12 100, 101,102,103, 104
1,2,3,4,5,6,7,8, 9,10,11,12 100,
101,102,103, 104, 105
Topology DiscoveryTopology Discovery
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
CMTS Receive CMTS Transmit
Forward Path Fault
Detection and
Sectionalization
Forward Path Fault Detection
and Sectionalization
BTPPSA = 300 Homes
BTPPSA = 75 Homes
HFC Downstream Network HealthHFC Downstream Network Health
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
CMTS Receive CMTS Transmit
Return Path Fault Detection
and Sectionalization
BTPPSA = 300 Homes
BTPPSA = 75 Homes
NTPPSA = 1200 Homes
HFC Upstream Network HealthHFC Upstream Network Health
SCTE Chicago Seminar September/21/20000SCTE Chicago Seminar September/21/20000
Thank YouThank You