Broadband Cable Service Deployment at WorldCall Telecom - Pakistan. Hassan Zaheer Manager Operations Broadband Division
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1 Broadband Cable Service Deployment at WorldCall Telecom - Pakistan Hassan Zaheer Manager Operations Broadband Division
2 Broadband Cable Cable services provides Intelligent network Mix of IP and MPEG Multiple businesses & services, one network Security, provisioning, management Voice, data, video convergence For the service provider, a converged network means Common provisioning/management/security For the consumer, a converged application means Device-independence Same look and feel Ease of use, plug and play
3 DOCSIS Project Primer The Cable Modem & The TS Cable modems are devices at the subscriber premises that convert digital information into a modulated radio frequency (RF) signal in the upstream direction, and convert the RF signals to digital information in the downstream direction. Another piece of equipment, called a cable modem termination system (TS), performs the converse operation for multiple subscribers at the cable operator's headend.. DOCSIS (Data Over Cable Service Interface Specifications) Published in 1997 Defines interface specifications for s and TS headend equipment Provides basis for open non-proprietary, multi-vendor cable systems
4 Basic Cable Data Network Principal Function of the DOCSIS Cable Modem System Is to Transmit Internet Protocol (IP) Packets Transparently Between the Head end and the Subscriber Location. Data and video channels use different frequencies Up & down data channels use separate frequencies TS controls both Data channels Only transmission in downstream Assigns Tx opportunities to transmit in the upstream
5 DOCSIS Roadmap DOCSIS Key Features Benefits/Services DOCSIS 3.0 (120 Mbps u/s) DOCSIS 2.0 (30 Mbps u/s) DOCSIS 1.1 (10 Mbps u/s) DOCSIS 1.0 (5 Mbps u/s) Channel Bonding IPv6 Support IPTV Support Best of DOCSIS Mandatory S-CDMA/ TDMA QoS Pre-EQ Operations Security Spec d for retail Standard spec Mbps Downstream Competition with FTTx IPTV offering Symmetric services Peer-to-peer Business-to-business (20 T1 capacity) Tiered service Double u/s capacity Lower op s costs Better than competitor High speed data Internet access
6 Cable Architecture New Services Opportunities PacketCable DOCSIS CableHome MPEG Services Home devices Security (encryption, authentication) Management End-to-end QoS Services Operator Core Backbone Operator Aggregation network TS TS IP Services TS Core Network Aggregation Network Access Network Operator administered Backend Headend CPE
7 Cable Modem Termination System (TS)
8 Cable Modem Termination System (TS)
9 Cable Modems SBG900 Wireless Data Modem SB5101 Data Modem SBV5120 Voice & Data Modem
10 512 kbps PCBA Cable Internet Architecture over DOCSIS 1.1 Service Classification Bandwidth for sites Bandwidth for Internet 512 kbps 7200 Router Internet Server Farm Catalyst Switch TS 512 kbps Public IP 512 kbps Site 5 Public IP Site kbps 512 kbps Site 2 Public IP Site PCIT 2 1Public IP PCIT 2 Site 4 Public IP
11 Metro Connectivity for Customer Sites Bandwidth for sites 7200 Router Internet Server Farm Catalyst Switch TS Private IP Site 5 Private IP Site 1 Cable Modem Site 2 Site PCIT 2 Private 1 IP PCIT Private 2 IP Site 4 Private IP
12 Broadband Connectivity for Buildings
13 Video On Demand over Broadband Cable 7200 Router Internet Layer 3 Catalyst Switch Video on Demand Server Farm TS Cable Modem Paired & STB Ethernet RF split RF for MPEG-2 Video HFC Set Top Box
14 Video On Demand Service Provisioning and Control Restriction of Video On Demand Service was the management first priority. Service control mechanism Set top boxes were paired with cable modems so STB will work only with specific cable modem Cable modems will not allow any other CPE to get connected
15 DOCSIS Security Overview -- BPI+ -- Internet Authentication (X.509 Certificates) Mfg Certificate... Key Management (RSA, Tri-DES) Digitally Signed by: DOCSCSIS Root Certificate... abcdef TS Data Encryption (DES) Digitally Signed by: Mfg CA PC x$a9e! abcdef TFTP Server Secure Software Download (X.509 Certificate) Code File New Code... Digitally Signed by: Manufacturer
16 Broadband Cable Service Provisioning
17 Broadband Service Provisioning Requirements Dynamic generation of configuration files Open interfaces for easy integration with mediation and billing servers LDAP, SNMP, XML/SOAP
18 Broadband Provisioning Server Placement in the Network To Back Office To Core Network RDC LDAP Directory Server DNS DHCP/TFTP/DDNS ToD/Syslog Headend IP Network HFC DHCP/TFTP/DDNS ToD/Syslog Headend Other DOCSIS TSs HFC
19 Broadband Service Provisioning Challenges Bulk provisioning of Customer Cable modems Simplified Interface for Customer Services personnel Customer Data extraction and analysis Integration with Billing application Solutions Used LDAP interface Developed Web based interface as per requirement for provisioning, viewing and data extraction Synchronized Billing using LDAP transactions
20 Question
21 Thank you
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