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TR-69 Overview Ivan Ong Comcast Technology + Product Development (T+PD) Office of the CTO Agenda • Introduction • Overview of TR-69 • TR-69 Architecture • Differences and advantages of TR-69 technology vs SNMP • TR-69 Breakdown • TR-69 Screenshots / Use-cases • TR-69 deployments, progress Page 2 Terms • CPE – Customer Premise Equipment or the device that is being managed. Examples: Wireless Gateway Router, VoIP Digital Adapter, NAS (Networked Attached Storage) Drive, Settop Boxes, etc. • ACS – Auto Configuration Server, management server for CPE. Part of the Service Provider’s OSS / BSS (Operational or Billing Support Systems) • XML – Extensible Markup Language. Set of encoding rules that is both human and machine readable. • SOAP – Simple Object Access Protocol, messaging framework for web services, uses XML as its message format. • RPC – Remote Procedure Call, built-in procedure that can invoke another process on a remote computer/network. • Data Model – Set of objects defined for management of a CPE. • SNMP – Simple Network Management Protocol, protocol for managing devices on IP network. • STUN – Simple Traversal of User Datagram Protocol through Network Address Translators (NAT) Page 3 What is TR-69? • • • • Technical Report defined by Broadband Forum XML SOAP Protocol Specification to remotely managed end user devices Enables communication between Customer Premise Equipment (CPE) and Auto-Configuration Server (ACS) • Base Management Functions: • Auto-Configuration • Dynamic Service Provisioning • Software/Firmware Image Management • Status and Performance Monitoring • Diagnostics Page 4 TR-69 Architectural Framework OSS/BSS Scope of CPE WAN Management Protocol (CWMP): ACS Southbound Interface Policy Managed LAN Device Managed LAN Device Call Center Auto-Configuration Server (ACS) ACS Northbound Interface Managed Internet Gateway Device Managed LAN Device Page 5 TR-69 Remote Management of Home Devices on Private Network STUN Server STUN Binding Messages IPTV STB Wireless Home Gateway Router Inform Messages ACS VoIP Digital Adapter • • STUN Server enables ACS to send Connection Requests to devices in customers home that reside on a private network STUN protocol used to provide public address and port to ACS Page 6 TR-69 Extensions • What can TR-69 be used for? • Manage VoIP Analog Telephone Adapters, [DSL] Modems, Residential Gateways, IP Settop Boxes • Extensions define data models for different devices: • TR-98 – gateway devices (DSL modems w/ built in routers) • TR-181 – Device Data Model • TR-104 – VoIP devices • TR-106 – Baseline data model structure • TR-110 – reference model for VoIP configuration • TR-111 – encompasses remote mgmt (now obsolete, requirements incorporated in TR69 Annex G) Page 7 TR-69 Advantages/Disadvantages Advantages • Device Configuration, troubleshooting, firmware upgrades, user management, monitoring. • Enables Service Provider to offer dynamic services from a centrally managed instance. • Reduces truck rolls/support calls by ability to managed devices with more granularity, proactive monitoring, and automated processes. Disadvantages • Must cross several layers of protocols and methods that must interoperate • Interpretation of the Technical Report by various manufacturers differs, no standard certification. Page 8 TR-69 vs SNMP SNMP • SNMP is a simple method to monitor and receive traps for our devices • Uses Community String (SNMPv2) for authentication • Limited to the demarcation device within a subscriber’s home. TR-69 • CPE Wan Management Protocol is designed to provide a high degree of security and is scalable. • Basic security allows for less robust CPE implementations • Greater security for advanced CPE implementations • Prevents tampering with the management [transactions or] functions of a CPE and/or ACS • Prevent theft of service Page 9 TR-69 Protocol Stack CPE/ACS Management Application RPC Methods SOAP HTTP SSL/TLS TCP/IP Page 10 TR-69 Call Flow CPE ACS Open connection SSL initiation HTTP post Inform request HTTP response Inform response HTTP post HTTP response GetParameterValues request HTTP post GetParameterValues response HTTP response SetParameterValues request HTTP post SetParameterValues response HTTP response Close connection Page 11 Sample Remote Procedure Calls List • Inform • GetParameterAttributes • SetParameterAttributes • GetParameterValues • SetParameterValues • AddObject • DeleteObject • Reboot • Download • Upload • FactoryReset Page 12 ACS ScreenShots Replacement Gateway receives default gateway’s configuration or last saved configuration Page 13 ACS ScreenShots Configure NAS device for Web access and connectivity to home devices Page 14 ACS ScreenShots Online gaming performance degradation. Able to view statistics of packets sent/received, errors. Page 15 ACS ScreenShots Access WebCam interface for configuration & setup Page 16 ACS ScreenShots Management Console to define policies Page 17 TR-69 – Actively Used by Other MSO • • • • • • • • • Bell Canada AT&T Telefonica China Mobile Frontier Telus CenturyLink Hughes Qwest Page 18 TR-69 – Estimated Timelines Cablelabs Wifi Provisioning Framework Q3-Q4 2011 InterOp with some Gateway Vendors Q1 2012 Q2 – Q3 2012 Vendors contacted Cablelabs members considering TR69 beyond WiFi GW Approximately 13% of TR-98 supported on Motorola CPE SBG6580 Q3 – Q4 2012 Data Model still being defined Q1 2013 Approximately 8% of TR-181 supported on SMC CPE D3GN4 Cablelabs TR69 test with other vendors for Wifi GW Page 19 References 1. ALU Motive TR-69 Overview 1. Broadband Forum, http://www.broadband-forum.org/technical/trlist.php 2. ClearAccess, Achieveing a Superior Customer Experience.pdf 1. University of New Hampshire Interoperability Lab, http://www.iol.unh.edu/services/testing/dsl/.../TR-069_crash_course.ppsx 1. Wikipedia - http://en.wikipedia.org/wiki/TR-069 Page 20 Q&A